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An M4 nut threaded onto an Allen key socket head screw
An M4 nut threaded onto an Allen key socket head screw
Nuts come in many sizes. This one is part of the Sydney Harbour Bridge.
Nuts come in many sizes. This one is part of the Sydney Harbour Bridge.
Left to right: Wing, hex, hex flange, and slab weld nuts.
Left to right: Wing, hex, hex flange, and slab weld nuts.
Left to right: Slotted, square (upper), T-nut (lower), cap (or acorn), nylon locking (top and side views), and castellated nuts.
Left to right: Slotted, square (upper), T-nut (lower), cap (or acorn), nylon locking (top and side views), and castellated nuts.
Fastener
Typical fasteners (US quarter shown for scale)
Typical fasteners (US quarter shown for scale)
Structural bolt DIN 6914 with DIN 6916 washer and UNI 5587 nut
Structural bolt DIN 6914 with DIN 6916 washer and UNI 5587 nut