20mm, Allen, 0.8mm
Metric Fasteners, 20mm, Allen, 0.8mm |
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Socket screwsScrews with an Allen wrench drive. |
Set screwsScrews with no head and machine threads for use in a tapped hole. |
Shoulder boltsScrews with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts. |