Stainless Steel Fastener Torque

Stainless steel bolt torque guide pdf values can only be achieved if nut or tapped hole has a proof load greater than or equal to the bolt s minimum ultimate tensile strength.
Stainless steel fastener torque. For other friction conditions significant modifications. 1 970nm 123 or 117 mean torque if scatter is 23 1 970 1 23 1 602 nm. Torque chart for stainless steel cap screws size 316 i n c h 18 8 i n c h 10 1 9 6 6 40 12 7 12 1 8 32 20 7 19 8 8 36 23 0 22 0 10 24 23 8 22 8 10 32 33 1 31 7 1 4 20 78 8 75 2 1 4 28 99 0 94 0 5 16 18 138 0 132 0. A m30 12 9 fastener has a maximum tightening torque of 1 970 nm based on a friction coefficient of 0 100 lubricated medium using mos2 paste maximum torque.
In its most basic form chromium is added to ordinary steel in order to become. Torque values for a2 or a4 metric stainless steel fasteners bolt dia mm dry lubricated 3 1 0 0 9 8 9 in lbs. The following torque values are the maximums for for stainless steel and nonferrous fasteners based upon actual lab testing on clean and dry or near dry fasteners. Stainless steel fastener torque and galling types of fasteners prone to torque and galling fasteners made of stainless steel aluminum and titanium are those most prone to galling when tightened.
Stainless steel describes a family of steels highly resistant to tarnishing and rusting that contain at least two separate elements alloyed together. Lubricated clamp load based. 1067 1245 949 1107 notes. Torque values for stainless steel and non ferrous fasteners bolt silicon monel brass 2024 t4 size dry lubricated dry lubricated bronze aluminum 2 56 2 5 in lbs 2 1 in lbs 2 6 in lbs 2 2 in lbs 2 3 in lbs 2 5 in lbs 2 0 in lbs.