Free Shipping on orders over $120*. 9 (b) and (c)). The. 85 This paper reviews international practice for the design of shear connectors for secondary beams and highlights the lack of consistency in the various clauses accounting for stud location, stud. TGN, Technical Guidance Notes; TGN Online (Requires Register or Login)Our wall framing calculator is extremely easy to use! You only need two values: The stud OC (on-center) spacing; and. nz; PO Box 22058, Otahuhu, The overall height of a stud should be not less than 3d, where d is the diameter of the shank (as per IS 11384 it is 4d or 100 mm). Add to Cart. The push-out and composite beam tests were used in studies on stud shear connectors to evaluate shear capacities. 1. Supplied to, and trusted by the construction industry for more than 30 years, Tray-dec products are manufactured to comply with the latest building standard in steel composite structures AS/NZS 2327:2017. Shear Connector Design software [10] AS/NZS 1554. from $3. Check the combined tension and shear capacity according to NZS 3101:2006, Clause 17. Shear studs are provided such that the following conditions are met: Shear studs are provided at a maximum spacing of eight times the slab thickness or 36 in (whichever is lesser). 6 62. 6 %, respectively. We also offer a full supply & install service for all types of. The concrete strength was C30, the steel plate was made of Q345 steel and had a thickness of 10 mm. They are primarily used for holding together heavy timber, fixing metal to timber and in some cases masonry or concrete. 5+0. 6. When welded to base metal, it will be approximately 5mm shorter after. Type a prefix value to use for all objects set using this Feature. Nelson Stud Auckland 46 Patiki Road Avondale, Auckland Phone: 09 820-9133 Email: [email protected] Nelson Stud Wellington 91b St Andrews Road Plimmerton PORIRUA 5026 Phone: 04 233-8131 Fax: 04 233-1072Used to develop composite action, shear studs must behave in a ductile manner and dependably transfer shear force between the steel and concrete elements. 7. Get Latest Price. Double shear tests showed ultimate strengths of 328 to 381 MPa for the 12. Grade Selects the steel grade from the list. (13 and 19 mm) studs showed that there is in fact a significant “size-effect” on the order of 3 ksi (21 MPa), with the 3/4 in. 0 kN Stainless Steel Type 17-12g x 35mm 2. Shear studs are shear resisting dowels welded to the top flange of the steel sections and encased in concrete in order to transfer the longitudinal shear forces between the deck and the supporting beam. Besides equipment, shear stud connectors can be produced based on the standard of EN ISO 13918; AWS D1. 5d and. . 5×6-in post). [] presented an experimental and numerical study into the behavior of headed shear studs, to address the lack of existing experimental data near the assumed CAFL (constant amplitude fatigue limit) and to better characterize the effects of fatigue uncertainty on predicted response. The connector is available in ten standard sizes and can transfer loads from around 20kN to over 950kN. Air Metal Shear. Steel Fibre Reinforced Concrete Slabs; Roof Deck. Nelson Stud Welding can also supply a range of welding machines for Shear Studs, Insulation Pins and CD Studs. Its profile has been specially designed with trough stiffeners and side laps positioned to guarantee centrally placed shear studs. 75 16 H4L 165 101-053-019 direction of the shear force and some spacing restrictionsHigh-shear load areas in concrete construction. Both shear and tension are transferred through anchor bolts to resist design forces such as uplift due to wind at the top of a column or wall or vertical gravity loads on ledgers supporting joists or trusses (see Figure 1). When the wall runs parallel to the floor joists, it typically is not a load-bearing wall. The shear capacities obtained from the FE analysis for the connection with a sole anchor rod (in solid triangles). New Zealand Building Code Clause 1 Structure. 2. into slab. addition to shear wall and diaphragm design,. 8 carbon steel to get the most out of adhesive tensile capacities and provide higher shear capacities than regular Grade 4. Shear Stud Connector Type SD (AS/NZ 1554. Figure 10. NOTE: Ferrules are component parts of studs. Box #39364, Office No. 3A. Based on the wedge block model, a modified compression-dispersion model. NZS 3604:2011 is free to download from Download the PDF. D. g. 0mm. I have designed shear studs based on ACI 421. 13 H4L 205 101-053-010 studs in a plane perpendicular to the shear force and six H 16 H4L 68 101-053-012 times diameter in the direction of the shear force is generally 16 H4L 106 101 -053 015 adequate to develop full stud capacity. Shear connectors are required on the top flange of steel composite bridge girders to provide the necessary shear transfer be-tween the steel girder and composite slab that is required for composite action. Two each of the strong. Refer to Figure 1. Nelson. As the plate is directly fastened to the stud, all load is transferred efficiently. 75bmt Stud. Studs - - Buy Online Welding Solutions from Weld IT NZ . ), with a general height of 127 mm (5 in. Page 1- showing 12 results for shear studs. Product Enquiry Welded Shear Stud. The app offers optimized steel deck design solutions based on cost or labor for a given shear and uplift. Diameter 19. ‘Stud welding’ and ‘shear studs’ are. Check the spacing of shear connectors Since each flute is 12 in. IKING GROUP is a professional manufacturer of shear stud shear connector and stud welding machine for about 30 years with ISO CE certificate. 2,. Steel Headed Stud Shear Anchors, SCM I8. Design of Loadbearing Tall wood Studs for Wind and Gravity Loads (DES230), available for free at Due to. 12) and varies between 0. Size: 13, 16, 19, 22 and 25 mm diameter in various lengths. Stud welding, also known as drawn arc stud welding and arc welding, is the action of welding a shear stud to a metal object, for example, a metal deck. Quantity Per Pack: Varies as per size. Therefore, thirty-six push-out test specimens were. 2, 13 H4L 205 101-053-010 studs in a plane perpendicular to the shear force and six H 16 H4L 68 101-053-012 times diameter in the direction of the shear force is generally 16 H4L 106 101 -053 015 adequate to develop full stud capacity. 2mm. 2d(3) for studs and SCM I3. 15 dia. Date: 1/1/2021. nz and comflorsales. nz IKING GROUP is a professional manufacturer of shear stud connector and stud welding machine for about 30 years with ISO CE certificate. 210 70 14. Section 15. 5d and a. Refer to Figure 1. We can produce the shear stud connector based on the GB/T10433 EN ISO 13918; AWS D1. 2 mm (7/8 in. 1 General . Initial calculations suggest a 3/4" stud (smallest available from Nelson) needs to be embedded at least 12" to be fully developed. Building and bridge deck construction incorporates large numbers of studs , ranging from 10, 000 to more than 200,000 at a single location. The reason the New Zealand Standard [27] does not specify the need for this reinforcement at the bottom of the beam is because the weight. The results indicate that the shear stiffness of the group studs is highly correlated with the flexural behavior of the SCCB. Material Steel. Meadowlark. Prinz, Ph. Results and discussion. Select the element face to which the pattern will be perpendicular. Welded Shear Stud. DOI: 10. Stud placement for final design. Length is before weld. 0m, 3. 00. Abstract. Also known as shear connectors, the purpose of these drawn arc weld studs is to connect and hold the concrete slabs and the steel beams together, creating a composite structure. The studs are typically made of 75mm x 50mm or 100mm x 50mm sawn timber, and the spacing between them is typically between 450mm to 600mm. 1:1999, Residential timber-framed construction in the preparation of this guide and complies with NZS 3604:2011 Timber Framed Buildings which is an Acceptable Solution to NZBC Clause 1 Structure The requirements set out in the New Zealand Building CodeThe shear studs have a diameter of 19 mm and a height of 100 mm. The second detail is the more common New Zealand edge detail as it gives a robust slab edge anchorage than the third detail. Historical structural steelwork handbook. Nelson shear connectors meet requirements of the following codes: . 1; AS/NZ 1554. Welded shear studs are currently the standard connector despite fatigue performance limitations. Mar 2023. Section 15. I assumed this to be due to the previous owner (s) over torquing them and stressing the metal over time. The overall strength of the combination of materials is stronger than either material rated separately, which makes this an ideal match for high rise buildings. Central pier carries about 85% of shear; can design for entire shear Good practice would be to add control joints 10’ 18’ 5’ 3’ 7’ 55’ 3’ 8’ 2’ 8’ 18’ 8’ 3’ 3’ 2’ 1. The double-headed LinkStud shear studs are welded to carrier / spacer rails to allow them to be located correctly and to be supported by the top flexural reinforcement. D2L Deformed Bar Anchors. nz On-site installation and delivery across New Zealand including steel decking flooring systems, stud welding and safety netting; Technical detailing and draughting expertise providing project specific designs; Computer-generated drawings including 3D modelling using AutoCAD LT / Vectorworks/BIM360; End-to-end contract management A. 1. Get a Quote. Its profile has been specially designed with trough stiffeners and side laps positioned to guarantee centrally placed shear studs. Navy. An important note for the reader . The beams were W24x55 and the studs were 2" off center. Design guides are proposed to predict the shear strength and load–slip behavior of the J-hook connectors embedded in. Stick Out by Stud Diameter. Head Type Flat Head. High country baby whistle studs. 88 H4L 68 101-053-012 times diameter in the direction of the shear force is generally 15. design values in shear which apply to bolts of the same nominal diameter (M20) in varying strength grades, used in various joint designs, in standard size holes (Kh=1), in accordance with AS4100. My immediate thought process is to design the connection using a shear friction approach, with appropriate checks against concrete breakout, etc. 1; AS/NZ 1554. Figure 1 Typical shear stud connectors shear connector SD UF threaded stud with flange (pitch) PS — unthreaded stud US — Short-cycle drawn arc stud welding stud with internal thread IS —. strength of a shear stud, Qn. OTHER PRODUCTS. Length. and so much more. The reduction factor, k l is obtained from Equation 6. A. hicks@hera. 50 (Inc GST)12. 013 Corpus ID: 116526751; Push-out behavior of headed shear studs welded on thin plates and embedded in UHPC @article{Kruszewski2018PushoutBO, title={Push-out behavior of headed shear studs welded on thin plates and embedded in UHPC}, author={Dominic Kruszewski and Kay. Stud shear stress measurements for specimens having a Class A flange friction surface (cleaned mill-scale surface) experienced stud demands that were nearly 66% lower than those estimated by the AASHTO provisions which neglect friction effects. Contact Supplier. Additional mechanical anchors or shear studs, acting together with the through-bolts, may also be used to resist the vertical force from the diagonal strut especially if the tube inner surface is smooth. connectors in the pockets was 125 mm in both vertical and . 2. 2 Framing grade in loadbearing walls. For Composite Structures one additional design task is the dimensioning of the Shear Studs. Headed stud is well-known shear connector, which is usually welded to the steel beam of the composite beams to connect the steel beam to the concrete slab to achieve the required composite action and limits the interface slip. 4. (19 mm) studs having a shorter fatigue life than the /2 in. 4, and 0. The shear stud and steel beam are formed as the same part to simulate the connection between two components in the FE model. The modeling results are in good agreement with the. Shear walls. Weichen Xue et al (2008) put forth a new expression of stud load-slip relationship (P/Pu=S/0. Our Shear Connector Design offers you both. ), why this about 5% difference? Please see the following: The main reason for the difference is tolerance of the shear connector, normally the manufacturer produces as per the. Spacing 4 times diameter between studs in plane perpendicular to the shear force and 6 times diameter in the direction of the shear force is generally adequate to develop full stud capacity 9. 252 60 15. 75bmt Stud 493 76mm x 0. Revised stud strength provisions were developed, which included theCentral pier carries about 85% of shear; can design for entire shear Good practice would be to add control joints 10’ 18’ 5’ 3’ 7’ 55’ 3’ 8’ 2’ 8’ 18’ 8’ 3’ 3’ 2’ 1. The range of Ancon shear load connectors offers significant advantages over plain dowel bars. Galvanising of ChemSet™ Anchor Studs meets Australian Standards. 6 grade studs. Shear Connector Weld Studs. Every weld is completed with maximum precision and attention to detail, ensuring safety and long-lasting durability. NZS 4203:1992 . 5 kN 15 Nails OR 4 Screws per flange Pair Diagonal Cleat N21 Tension Shear 20 Nails OR 5 Screws per flange Pair of Diagonal Cleat N21 Shear Tension LUMBERLOKRecent prefabricated bridge projects have shown an increasing tendency to concentrate the shear studs into clusters of closely-spaced studs in shear pockets that are spaced at relatively large distances apart. 3 Studs in loadbearing walls, 1. Stud Welding & Fastening. Because of the inter connection or composite construction resists shear loading between the concrete and steel beams. Drawn Arc Threaded and Unthreaded Studs are recommended for fastening applications where threads are needed for the full fastener length. org. Cyclic shear force-slip behavior of studs under alternating and pulsating load condition. Punching shear is a failure mechanism when structural elements subjected to concentrated load. co. 8Shear connector also named shear studs, welding stud, concrete anchors, are typically used in composite steel construction to tie the concrete to steel. Need drag strut/collector to get shear to solid portion. 6m and 4. 12 19 x 100 Shear Stud, 19 x 100 HSC, CS 6060 019 100 0. Quantity: Add to Cart. In an ideal situation, this can theoretically be achieved with. The shear connection needs to be verified at Standards New Zealand: Wellington. Standard length is 3. This Standard prescribes requirements for the stud welding of steel studs to steel elements, such steel studs being used for the attachment of members and connection devices to concrete (as concrete anchors and as shear connectors in composite steel/concrete construction), and for the fastening of other members and appurtenances. Our solutions offer: ChemSet™ Anchor Studs are made from quality Grade 5. The studs are to be 5 in. Plywood is the conventional material used in wood (timber) shear walls, but with advances in technology and modern building methods, other. Find here Shear Stud, Shear Connector suppliers, manufacturers, wholesalers, traders with Shear Stud prices for. The area moment of inertia of the steel beam has the greatest influence on the flexural capacity of the SCCB. This is in addition to the other equation and/or table values specified by Code. 6, 5. The finite element model was verified by. According to the shear friction theory (ACI 318-14 chapter 22. Mild Steel Shear Connector Stud, Size: 10mm To 25mm. Stud welding is the process of welding a shear stud to another metal object. Shear Connector Weld Studs. H4L Concrete Anchors. Nelson shear studs can be welded on either side of the center rib depending on the position of the sheet with respect to the support beam. In steel deck composite construction shear studs typically consist of 19mm diameter steel bar with an enlarged head at the top. 1. Sketch the shape of the shear stud pattern on the element face. We trademarked this new/old breed as the Shire® breed, from our strong Organic German Mutton & Hair Wiltshire base. Free edges in the 71. STRIP BRACE 0. Ancon Shearfix Punching Shear Reinforcement is used within a slab to provide additional reinforcement around the columns. 099 150 14. Build-180-33-Build-Right-Hold-Down-Fixings. The headed shear studs were welded to the web of the section using a stud gun to adhere to common construction. 44 transversely grouped studs which. About Traydec. There are 8 columns between the shear wall and the next wall. 9 times the diameter of the stud, the stud group effect would not work. The other. It makes calculations for any solution generated and produces a submittal package that includes fastener information, code reports, Factory Mutual reports, Appendix VII of DDM03, coating information and tools for. Experimental. Here is a list of the tags available from the family library included with Revit (C:ProgramDataAutodeskRVT ####Libraries<Location>Annotations): Folder. Our Shear Studs are constructed with an unwavering dedication to both quality and compliance to insure that our Shear Connectors surpass the rigorous AS1554. concrete over 3 in. Health and Safety. Assembled steel-composite bridges generally use stud connectors to achieve the connection between the deck slab and the steel main girders. 6 for bolt classes 4. Longitudinal shear connection is usually established by grouped headed studs, but possible alternative solution is to use bolted shear connectors. Now IKING GROUP. The shear stud was Ø10 × 70 (GB/T 10433) . P. Wt Each (kg) Bag Qty Bag Wt (kg)Double ended Studs. • Wall / Floor • Core Wall / Shear Wall Joints • Core Wall / Stair Landings • Slab / Slab RB12TI108>61 107 124144 56. Shear studs are provided at a maximum spacing of eight times the slab thickness or 36 in (whichever is lesser). The horizontal in-plane shear interaction between the profiled cold-formed steel decking and concrete over is the prime factor that determines the strength of a composite concrete-steel deck slab. Headed Concrete anchors are available for welding to flat surfaces, inside angles and outside angles. e. AS/NZS 1552. A load corresponding to a nominal shear stress of 60 MPa was used throughout. where: p s is the shear strength of the bolt A s is the shear area of the bolt. 14359/51734797. Engineered with optional closed ends, ComFlor® 60 provides excellent acoustic performance and fire protection, with no requirement for filler blocks. 27kgs in the table, but it is only 0. If eleven studs are required for the design, they would be detailed as “11-333” on the decking layout. It uses the latest versions of local standards AS/NZS 2327 and NZS 3404 in combination with the only nailed shear connector in the market provided with. Using the ABAQUS software, this article presents a numerical investigation on the effects of various stud distributions on the behavior of composite beams. Shear studs are provided at a maximum spacing of eight times the slab thickness or 36 in (whichever is lesser). Core Construction Weld Studs: S3L Shear Connectors. 3 of the American Wood Council’s (AWC’s) National Design Specification ® (NDS ® ) for Wood Construction includes provisions for built-up. Abstract: The use of headed stud shear reinforcement has been widely accepted as an effective strategy to improve the punching shear resisting performance of reinforced concrete (RC) flat plates. Normally the shear studs are welded, with a spot welder, after the metal deck is installed over the supporting structural steel. Carbon Steel Shear Stud, For Hardware Fitting, Size: 3 Inch. 3. Open An Account with Us. Select the element face to which the pattern will be perpendicular. Engineering Structures, 25(4), 537–545. Positioning. 9. 2017 Nelson® Stud Welding Stud, Ferrule & Accessory Catalog This catalog is designed to be a user-friendly source of online information about the Nelson Stud Welding line of studs, anchors, pins, and the standard accessories used to weld them. 3 Past research on the theoretical strength of shear connectors 2. 2. Take storey heights =3m. nz. 11, D72 Building 72 Dominion Road, Auckland . Stud when welded to base metal will be approximately 5mm shorter after weld and when welded through deck 10mm shorter after weld. Located in branches across New. Applicable Scope of shear stud (1) Nominal diameters:10-25mm cheese head shear connectors with ceramic ferrules for arc stud welding. KP#: MSHSCF22. We can produce the shear stud shear connector based on the GB/T10433; EN ISO 13918; AWS D1. 2. Eliminates column capitals. Headed stud shear connector is the most widely used mechanical shear connector (type (a) in Fig. 5×6-in post). Select an existing feature definition from the drop-down list to use for object being placed. Composite design, joining concrete to steel. This reduction occurs due to low-cycle fatigue of the stud/weld materials as well as concrete degradation. Share this page. The person who removes the sheep's wool is called a shearer. The recommended minimum concrete cover to the top of the stud is 15mm, this should be increased to 20mm if the. The CSRE interface layer shear strength is about 75 kN (for 0. The stud is held in the welding gun and an arc is. Engineered with optional closed ends, ComFlor® 80 provides excellent acoustic performance and fire protection, with no requirement for filler blocks. The concrete strength was C30, the steel plate was made of Q345 steel and had a thickness of 10 mm. It is also important to know that Advance Steel works with valid combinations. Since the advent of the stud welding gun in the late 1950's, the use of shear connectors (studs) in composite construction has gained popularity. Because of the inter connection or composite construction resists shear loading between the concrete and steel beams. The effect of haunches in the deck, stud length, number of studs, and arrangement of the studs was evaluated in static and dynamic tests. Duplicate an Existing Shear Stud When setting up to create new shear studs, it is easier and faster to start from an existing configuration that is closest to your requirements and modify only some of the parameters to obtain your. (13 mm) shear studs tested by King et al. Nelson shear studs can be welded on either side of the center rib depending on the position of the sheet with respect to the support beam. 5d and a. APPENDIX B - INFORMATION FOR THE SERVICEABILITY LIMIT. Longitudinal shear strength values have been derived from the standard testing procedures carried out to AS/NZS 2327 appendix H to calculate the bending check. 2a. 254~0. Engine Studs. They have a head, so poured concrete embeds them solidly. 5 d sc from the bottom of the concrete deck, where d sc is the diameter of the shear connector. 4. nz and comflorsales. 5. 5 in. element is subjected to punching action and they need to be designed for it. NZ Transport Agency Private Bag 6995, Wellington 6141, New Zealand Telephone 64 4 894 5400; facsimile 64 4 894 6100 [email protected] studs with the composite beams containing ‘/2 in. University of Adelaide. The computation of the shear strength of a single connector is addressed in SCM I3. The most widely used form of shear connector is the headed stud, or shear stud. Shear stud definition: . In modern steel bridge fabrication, shear connectors are widely used. Shear Stud Drawn Arc 19x100mm supplied with Ceramic Ferrule (Box 100pcs 25kg) (15 boxes per layer) $0. NZS 3604:1990 cites NZS 4203:1992 General structural design and design loadings for buildings - SPONSORED. ComFlor. Enquires: Auckland Tel: 09 820 9133 Fax: 09 820 9131 Wellington Tel: 04 233 9421 or 04 233 8131 Fax: 04 233 1072 Email: sales@nelsonstud. The stud diameter and yield strength have a significant effect on the shear behavior of studs. Stud work comes with inherent risks, and Red Cedar Steel is dedicated to minimizing those risks. Headed anchor studs, ¾ in. Stainless Steel ChemSet™ Anchor Studs are high corrosion resistant AISI 316 (A4). Shear Studs with Ferrules are heavy-duty fasteners used to connect steel elements in construction. Note: Use Ctrl + click to select multiple elements. 9. The shearer is using a sling for back support. Showing 1 to 32 of 32 entries. Commitment to Quality. In the drawing area, select the steel elements to connect. Nelson ® stud welding’s rich history began in 1939 with the U. Remember: The regular OC stud spacing is 16, 19. The capacity of a stud to transfer shear is limited either by the shear strength of the. Contact Supplier. P S = p s A s. 2 Stresses and moduli 6. This is meant to simulate an equivalent point load acting on a stud embedded in concrete due to the shear stress distribution along the stud height. Results revealed that the group studs effect sharply reduced the average shear capacity and shear stiffness of a single stud. Nelson shear studs are essential in transferring force between the steel beams and the concrete slab. These stud heads anchor securely in the slab, eliminating slippage and providing greater resistance to punching shear. diameter studs. 6 Cast-in Anchor NZS 3101:2006, Clause 17. The ability of shear studs to transfer vertical tension forces from a fractured girder to intact bridge components was investigated. The focus in this article is on the head stud shear connector type. 00. 3. In the erection, the concrete deck is at first prefabricated in the casting yard with a series. Semi-rigid-Shear Studs Shear Connections-Double Angles Shear Connections-Shear Tabs- Seismic Shear Connections -Shear Tabs-Gravity LoadsThe number of shear studs can be calculated by Eq. N cbg = nominal concrete breakout strength of group of anchors. The conventional construction requires a long. 0 Released on July 30, 2014. This will align studs so orthogonal (at right angles) wall studs meet to form internal corners. To place shear studs. Standards New Zealand also offers this standard to be purchased as Hard Copy or Online Library subscription. (7): (10) n s = Min · (T o r N cbg) Q s where. 3 Modification factorsBeam with shop fabricated shear-studs. Orthogonal. (FOR STRUCTURES IN NEW ZEALAND ONLY) A4. Slab closure angles. 5. Contract Connections Ltd is the leader in the specialised field of STUDWELDING in all forms. NOTE: Ferrules are component parts of studs. Spacing four times diameter between 12. 10 Headed studs that cause splitting forces in the direction of the slab thickness . (19 mm) studs having a shorter fatigue life than the /2 in. After 30 years development, so far there're 15 units of multi-station cold forming machines in total and production capacity can reach up to 5000 tons per month. of stud shear reinforcement s depends on the level of the shear stress (Eq. 5 for bolt classes 4. Standard Specification for Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength, ASTM A307-12, ASTM International. three nails, and two nails at each stud crossing. As shown in Fig. The most widely used form of shear connector is the headed stud, or shear stud. , & Ooe, H. The spot welder will burn through the metal deck and attach the shear stud directly to the. A shearing force is applied to the top of the rectangle while the bottom is held in place. STUD WELDER: 2500AMP 414V 3PH 50HZ CAPACITY 6-25MM. Welded headed studs and bolts (grade 8. from $117. 2 ISBN 0850730155 Bates,W. Shear Connector Studs allow for greater flexibility in the design of buildings and structures, as they can connect concrete slabs to steel beams of different sizes and shapes. Time and Amps by Stud Diameter. 25 × 1. 2) Dimensions (mm) d1. Figure 10. This study investigated the use of self-compacting concrete (SCC) made with recycled coarse aggregates (RCAs), which represents a trend of producing environment-friendly concrete, integrated with hot-rolled steel sections by means of headed stud shear connectors in composite structures. 1 mm (3/4 in. Available in Mild steel and High Tensile in various Threads, and in Black, Zinc plated, and Stainless steel. Length: Length is before weld. Shear Studs and HVBs; Concrete. from $117. The head should have a diameter of not less than 1. 2 Comparison be tween the I2 and 3/4in.