1 4 Bolt Torque Spec

These charts show suggested maximum torque values for threaded products and are intended only as a guide.

1 4 bolt torque spec.

Print this page. 18 8 stainless steel. Us recommended bolt torque. Sizes from 1 4 up are in lb ft.

Bolt size low grade grade 8 8 grade 10 9 grade 12 9. Fine thread figures are for 1 14. Sizes from 1 4 up are in ft lbs. In tpi1n m2ft lb3n m ft lb n m ft lb mm x pitch4n m ft lb n m ft lb n m ft lb 1 4 20 7 4 5 6 11 8 16 12 8 436597.

The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. 9 8 2006 11 12 23 am. Recommended bolt torque values for stainless steel and nonferrous fasteners inch series. Torque values stainless steel bolt table chart.

It is recommended that power. Metric bolts maximum torque in foot pounds for clean dry threads check your shop manual. Secondary sources such as transformers tie lines ensure that. Always refer to the manufacturers recommended torque values if possible.

Use the torque specifications in table 2 1. Have the bus bars cleaned annually with clean dry. Torque wrench calibration browse our selection torque wrench faqs. Recommended bolt torque table size recommended torque grade 2 grade 5 grade 8 18 8 s s bronze brass.

Tightening torque clamp load lbs tightening torque clamp load lbs tightening torque clamp load lbs tightening torque min max min max min max min max coarse thread series 1 4 20 2864 93 1 in lbs 144 in lbs 3357 100 7 in lbs 134 3 in lbs 2029 76 1 in lbs 96 4 in lbs 2864 107 4 in lbs 136 in lbs. Reduce torque by 20 when cadmium plated bolts are used. Clamp loads are based on 75 of the minimum proof loads for each grade and size. Grade 2 5 and 8 values are for slightly lubricated bolts.

Grade 2 calculations only cover fasteners 1 4 3 4 in diameter up to 6 long. Grade 2 grade 5 grade 8 18 8 s s bronze brass. Manufacturer s instruction documents should. Fine thread figures are for 1 14.

Grade 2 5 and 8 values are for plated bolts. Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8.