Bolt Torque Table
Estimated with clamp load as 75% of proof load
as specified in SAE J429 and ASME 574
Steel GradeSAE 5
        5        
SAE 8
        8        
Socket Head
Cap Screws
SH
 Minimum Tensile 
Strength PSI
120,000150,000  1/4-1/2" 180,000  
5/8-1" 170,000
Nominal Dia.
and
Thread Pitch
Bolt Torque Specs in Foot Pounds or (Inch Pounds)
DryLubedDryLubedDryLubed
1/4-20(101)(76)(143)(107)(168)(120)
1/4-28(116)(87)(147)(123)(192)(144)
5/16-18(209)(157)(295)(221)(348)(264)
5/16-24(231)(174)(327)(245)(384)(288)
3/8-16(372)(276)44335138
3/8-24(420)(312)49375843
7/16-14493770528161
7/16-20554178589168
1/2-1375571068012493
1/2-20856412090140105
5/8-11150113212159238179
5/8-18170127240180270202
3/4-10267200376282423317
3/4-16297223420315472354
7/8-9429322606455682511
7/8-14474355669502752564
1-86444839096811022767
1-1272254210207651147860
 Lubed means cleaned dry bolts lubricated with a standard medium viscosity 
 machine oil. Lubricate all contact areas of the bolts and washers. Lubricating
 the bolts is the suggested method.  Thread Engagement

Torque SpecsTorque Specs
The new Torque Specs section has Metric Bolt Torque Tables, Inch Bolt Torque Tables, Torque Conversion tools, Torque Wrench tools, Torque Calculators, and other torque related Technical Aides.

Note: Much effort has been made to make sure that these bolt torque specs are accurate. However, it is the user's responsibility to verify that the provided information is correct before using it.