Metric Hex Head Bolt Torque Specs

Class 4 6 iso metric coarse pitch bolts screws bolt tension recommended corresponding to assembly 65 of proof load torque kn nm 0 19 0 06 0 31 0 12 0 50 0 25 to convert kn to lbf.

Metric hex head bolt torque specs. Bolt clamp loads. Consult your shop manual for the most precise listings. 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. Different bolt sizes and grades have different torque specifications.

Metric bolts screws nuts. 5 8 8 8 10 9 class 5 8 class 8 8 class bolt head identification bolt size grade 2 grade 5 grade 8 metric bolt head identification bolt size inches. For example 6 mm bolts with a 10 9 grade have a maximum torque value of 10 foot pounds while the same size bolts with a 12 9 grade have a maximum torque value of 12 foot pounds. Improvised torque wrench improvised torque wrench with luggage scale.

Bolt torque calculator calculate required bolt torque. 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. Multiply kn by 224 809 to convert nm to lbft. Fastener mart created date.

Lubricated bolts and reduced torque lubrication effect on bolt tension and torque. Lubricating the bolts is the suggested method. Multiply nm by 0 737562 0 73 0 44 1 29 1 00 2 08 2 1 2 94 3 5 5 34 8 5 8 45 17 12 4 30 16 8 47 22 9 73 28 1 101 35 8. Torque specifications especially for critical joints should.

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. Lubricate all contact areas of the bolts and washers. Fasteners bolts nuts and threaded rods torque tension and loads.