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Machine screw diameter is measured on the outside of the threads.

Combo round head machine screw diameter

Diameter and Thread count

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2993
USS flat washers, Zinc plated steel, #10
USS pattern is the most common type of flat washer.
$0.05 / ea
$2.51 / 100
$21.40 / 1,000
2975
SAE flat washers, Zinc plated steel, #10
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.05 / ea
$1.90 / 100
$16.20 / 1,000
3023
Lock washers, Zinc plated steel, #10
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.07 / ea
$1.77 / 100
$14.40 / 1,000

See also

Metric machine screw

Metric 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.