Bolt Torque Chart - TorqueSpec

TorqueSpec shows how tight a bolt goes the moment you open it. No typing: the first screen already shows M10, class 8.8, dry, with the torque in N·m and ft-lb, the lubricated value and a to-scale drawing of the bolt.

FREE: the M10 8.8 screen, metric coarse sizes M6 to M12 in class 8.8 (dry), one selection change a day, one saved favourite, and the full chart table with only the first rows readable.

PRO unlocks every size M3 to M36, metric fine and UNC/UNF threads, all strength classes and SAE grades, lubricated, zinc and custom K factors, the full bolt details and chart table, the Tools tab, unlimited favourites and copy or share. One purchase, no subscription.

FEATURES
• Opens on a ready answer, in N·m and ft-lb
• Metric coarse and fine, UNC and UNF, classes 4.6 to 12.9, SAE grades 2, 5 and 8
• Dry, lubricated, zinc and custom friction factor
• Wrench extension correction, torque-angle helper and unit converter
• Save favourites, copy or share a spec as text, all offline

Values are computed reference figures. Follow the manufacturer's specification where one exists.