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3mm x 20mm

Metric Fasteners

Metric hex bolt

Hex bolts

Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.

Metric machine screw

Machine screws

Screws with machine threads for use with a nut or in a tapped hole.

Socket product

Socket screws

Screws with an Allen wrench drive.

Set screw

Set screws

Screws with no head and machine threads for use in a tapped hole.