Metric Hex Head Bolt Torque Specs

In grade 8 those numbers are 11 and 9.

Metric hex head bolt torque specs.

The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. For example grade 5 1 4 20 should be torqued no more than 7 ft lb in cast iron or 6 ft lb in aluminum. Service manual supplement july 2016 fastener torque specifications 4 sae and metric fastener torque specifications sae plain and zinc plated hex and socket head cap. Metric torque chart for hex head cap screws torque chart for stainless steel cap screws size 316 i n c h 18 8 i n c h 10 1 9 6.

Bolt torque calculator calculate required bolt torque. Torque tension reference guide printed in u s a. Metric bolts screws nuts. Bolt clamp loads.

Fasteners bolts nuts and threaded rods torque tension and loads. 9702365 as 06 14 torque poster. Lubricating the bolts is the suggested method. Iso 724 metric threads dimensions of metric threads according iso 724.

Metric fasteners nominal size or basic screw dia. Steel grade sae 5 sae 8 socket head cap screws property class 8 8 10 9 12 9 socket head cap screw torque in pound foot or pound inch torque in newton meter nm lubed means cleaned dry bolts lubricated with standard medium viscosity machine oil. Torque tension relationship for a307a grade 5 8 9 bolts locknut size threads per inch steel hex locknut steel hex flange nut. For the 10 9 bolt the 9 tells the user that the yield strength of the bolt is approximately 90 of the first number.

Two other common symbols that are included on metric parts are the s and the 3 designations. Torque specifications for fasteners a bolt of the same size thread and material in a given grade can generally be tightened to a given torque. Torque specifications especially for critical joints should. Metric bolt head and wrench size ansi so din and jis bolts.

Thus the 10 9 bolt has an approximate yield strength of 900 mpa 940 mpa by specification. Threads per inch tensile stress area sq. Fastener mart created date. Lubricate all contact areas of the bolts and washers.

Supply part number.