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Hex bolt diameter is measured on the outside of the threads.

Hex bolt diameter

Resources

Diameter and Thread count

Matching Products

Click on a product # for additional info

Prod. # Description Buy
3054
SAE flat washers, Zinc plated grade 8 steel yellow, 3/4"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.80 / ea
$10.60 / 20
$86.50 / 200
3067
USS flat washers, Zinc plated grade 8 steel yellow, 3/4"
USS pattern is the most common type of flat washer.
$1.46 / ea
$19.46 / 20
$162.00 / 200
3044
Lock washers, Zinc plated grade 8 steel yellow, 3/4"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.46 / ea
$5.95 / 20
$53.00 / 200

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.