Sae 0 1 2 74 000 psi low carbon steel.
1 2 x 13 bolt torque.
Sae grade 8 150 000 psi med carbon alloy steel.
These charts show suggested maximum torque values for threaded products and are intended only as a guide.
Bolt size tpi tension tightening torque range ft lbs min max min max galv waxed plain.
These figures represent an estimate of torque torque being the measurement of friction not tension required to induce given preload clamp load in a bolt.
Always refer to the manufacturers recommended torque values if possible.
Tightening torque guide for grade 5 8 hex cap screws this table is based on ifi 5th edition technical data n 12 n 16 using equation 1 and a torque coefficient k 0 20 for non plated steel fasteners and k 0 15 for plated fasteners.
Cap screws and hex bolts have heads designed for tightening to exact specifications with ratchets or spanner torque wrenches.
Grade 2 grade 5 grade 8 18 8 s s bronze brass.
Sae grade 3 100 000 psi med carbon steel.
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Sae grade 7 133 000 psi med.
1 1 2 12 1330 980 2970 2190 4820 3560 4mm x pitch nominal thread dia.
Torque spec for 1 2 13 grade 8 bolt.
Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3.
Bolts with rounded heads such as carriage bolts and step bolts provide a low profile fit in tight applications.
Sae grade 6 133 000 psi med.
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Unless otherwise speciļ¬ed use torque values listed above.
1 1 2 12 87747 1316 1645 1865 2194 142292 2134 2668 3024 3557 166778 2502 3127 3544 4169 torque tension relationship for a307a grade 5 8 9 bolts locknut size threads per inch steel hex locknut steel hex flange nut grade c fnl grade 9 grade f grade g clamp load lbs tightening torque clamp load lbs tightening torque clamp load lbs.
In millimeters x thread pitch torque tolerance 0 15 of torquing values.
Sae grade 5 120 000 psi med.