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anchor bolt torque specifications

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Torque Values for Anchor Bolts CR4 Discussion Thread

MATERIAL Sy MPa LUBR 181 TIGHTENING TORQUE in Lbs 183 ft Multiply by 1 356 to obtain N m CLASS 4 6 240 NL 0 20 3 8 16 29 46 71 98 139 189 240 351 476 648 833 1078 1333 1665 2003 2589 3220 4014 4851 5884 240 L 0 15 3 6 12 21 34 53 74 104 142 180 263 357 486 625 808 1000 1248 1502 1942 2415 3010 3638 4413Designation F 1554 – 07 Standard Specification for Anchor Bolts Steel 36 55 and 105 ksi Yield Strength1 This standard is issued under the fixed designation F 1554 the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision

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Concrete Foundation Anchor Bolts Design Engineering

Bolt Size TPI Proof Load lbs 1 Clamp Load lbs 2 Tightening Torque ft lbs Galv Waxed Galv Plain 1 ⁄ 4 20 1 053 790 2 4 3 5 ⁄ 16 18 1 735 1 302 3 8 7 3 ⁄ 8 16 2 567 1 925 6 15 12 7 ⁄ 16 14 3 521 2 640 10 24 19 1 ⁄ 2 13 4 700 3 525 15 37 29 9 ⁄ 16 12 6 028 4 521 21 53 42 5 ⁄ 8 11 7 485 5 614 29 73 58 3 ⁄ 4 10 11 062 8 297 52 130 104 7 ⁄ 8 9 LOAD CONDITIONS AND SPECIFICATIONS Anchor Spacing Distance Edge amp End Distance Load toward edge Load away from edge 1 4 quot 2 1 2 2 1 1 2 3 8 quot 3 3 4 3 2 1 2 quot 5 4 3 5 8 quot 6 1 4 5 4 3 4 quot 7 1 2 6 5 7 8 quot 9 7 6 1 quot 10 7 6 EDGE AND SPACING DISTANCES Anchoring too close to an edge or placing anchors too close to one another can decrease performance For

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DESIGN OF ANCHOR BOLTS EMBEDDED IN CONCRETE MASONRY

9 6 2014 nbsp 0183 32 Bolt pretensioning of pressure vessel anchor bolts are done the same way as anchor bolts for structural columns The quot turn of the nut quot method has been used for decades There are also other methods approved by AISC Turn of the nut method requires inspection and marking of both snug and quot turned quot bolts a rock bolt or its anchor 12 1 1 Fit the socket of the torque wrench to the rock bolt head or nut to be tested 12 1 2 Apply a preset torque to the rock bolt or its anchor increasing the torque in small increments until just sufficient to cause the face nut to rotate Record the torque wrench reading the date of test and the rock

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FASTENER TORQUE CHARTS Imperial Supplies

1A anchor bolts with Class 1A threads 2A anchor bolts with Class 2A threads A When Grade 36 is specified a weldable Grade 55 may be furnished at the supplier s option 4 2 Weldable steel for Grade 55 is provided for in Supple mentary Requirement SI 5 Ordering Information 5 1 Orders for anchor bolts should include the following information 1 7 2015 nbsp 0183 32 ASTM F1554 Specifications Technical Menu Posted on July 1st 2015 by vapro The specification for ASTM F1554 covers straight and bent headed and headless carbon carbon boron alloy or high strength low alloy steel anchor bolts also known as anchor rods The anchor bolts are furnished in three strength grades and in the sizes specified below

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TIGHTENING TORQUES FOR IMPERIAL U S BOLTS of yield

12 1 2012 nbsp 0183 32 Kenneth The only time you should need to torque your anchor bolts is when the project engineer specifies it Otherwise snug tight should be sufficient Reply3 3 14 Metal Hit Anchor 346 3 3 15 HPS 1 Impact Anchor 347 3 3 16 HTB TOGGLER 198 Bolt 349

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Chemical anchoring systems Hilti

ANCHOR BOLTS 449 1 Description Fabricate and install anchor bolts to be embedded in or attached to concrete 449 2 Materials A Bolts and Nuts Provide bolts and nuts that meet the standards given in Table 1 Table 1 Bolt and Nut Standards Specified Anchor Bolt Category Bolt Standards Nut Standards Mild steel ASTM A 307 Gr A or A 36 ASTM A 563Headed anchors include conventional square head or hexhead threaded bolts but also include plate anchors where a steel plate is welded to the end of the bolt Headed anchor bolts must meet the requirements of Standard Specification for Carbon Steel Bolts and Studs 60 000 psi Tensile Strength ASTM A307 Grade A ref 7

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Torque Testing amp Installation Inspection of Drilled in

ASTM F1544 Grade 36 is a standard material specification for straight bent headed headless anchor bolts and all thread anchor rods made of low yield carbon steel ASTM F1554 grade 36 anchors bolts have minimum yield requirement of 36 ksi or 248 MPa and are used for structural and concrete anchoring Bolting torque to develop 50 Bolt Yield Stress at Nut Factor K 0 16 This Table is applicable to Never Seize paste and Fel Pro lubricant K 0 16 The above Table is applicable only for ASTM A320 Grade B8 Class 2 and A193 Grade B8 Class 2 Stud Bolts These are 304 SS material The torque values are approved for spiral wound graphite and PTFE

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Torque Values Chart for Common Bolt Sizes

In regards to the torque value for adhesive anchors the torque is mainly used to fasten or clamp down the fixture to the base material If you reference the ICC ES Evaluation Report ESR the Hilti Anchor Product Technical Guide and or the Instructions for Use IFU the value listed for the installation torque will be the maximum torque headless anchor bolts also known as anchor rods made of carbon medium carbon boron alloy or high strength low alloy steel It provides for anchor bolts in three strength grades two thread classes and in the diameters specified in Section 4 The specification also covers all thread rod for use in anchor ing to concrete

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TORQUE TENSION REFERENCE GUIDE Fastenal

6 5 2 Hot bending temperatures for non heat treated anchor bolts shall not exceed 1300 176 F Anchor bolts shall be allowed to air cool after bending 6 5 3 The maximum hot bending temperature for heat treated anchor bolts shall be less than 700 176 F for Grade 55 and less than 1000 176 F for Grade 105 Anchor bolts shall be allowed to air cool after bending for Use in Concrete CEN TS 1992 4 2 which provides technical specifications on anchor bolt design which is based on the limit state approach In Hong Kong the authority provides a list of approved anchor bolts in the Central Data Bank CDB 3 which have been tested in accordance with outdated BS 5080 4 and ETAG 001 1

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SPECIFICATION FOR ANCHOR BOLTS AND GROUTING

2 7 2015 nbsp 0183 32 A307 Bolt Size TPI Proof Clamp Tightening Torque ft lbs Proof Load lbs Clamp Load lbs Galv Waxed Galv Plain 1⁄4 20 1145 859 2 4 4 5⁄16 18 1886 1415 4 9 7 3⁄8 16 2790 2093 7 16 13 7⁄16 14 3827 2870 10 26 21 1⁄2 13 5108 3831 16 40 32 9⁄16 Expansion Anchors appl ystead torque not impact until anchor rod stops rotating or maximum allowable applied torque value is reached Fully support hex nut do not cause bending DO NOT exceed maximum allowable applied torque Torsional shear failure a troo of threads may occur Recommended minimum Safe Working Design Load is 2 to 1 against