Standard Fastener Dimensions
Dimension tables for bolts, nuts and washers, straight from the same dataset used inside the MechaHandbook app — ISO (and UNI, where there's no ISO equivalent) standard sizes with technical drawings for every type.
Bolts
Hex head, socket, countersunk
3 types Open →Nuts
Hex, low profile, nyloc
3 types Open →Washers
Plain, spring, tooth
4 types Open → Coming soon
Keys
Parallel, Woodruff
Coming soon
Pins
Cylindrical, taper, spring
Coming soon
Retaining Rings
External/internal circlips
Coming soon
Bearings
Ball, roller, thrust
Jump straight to a type
Every bolt, nut and washer type on one page — pick a category above, or go straight to the one you need.
Bolts
Nuts
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MechaHandbook has this whole standard components library and more — thread charts, tolerances, unit conversions — all offline, no internet required.
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