5/16"-18 Square Head Machine Bolts

5/16"-18 Square Head Machine Bolts

19 products

In black oxide and plain steel.

Head/Wrench/8-point Socket size is 1/2"

19 products
5/16"-18 x 3/4" Square Head Machine Bolt, Black Oxide
5/16"-18 x 1" Square Head Machine Bolt, Plain
5/16"-18 x 1" Square Head Machine Bolt, Black Oxide
5/16"-18 x 1-1/4" Square Head Machine Bolt, Black Oxide
5/16"-18 x 1-1/2" Square Head Machine Bolt, Black Oxide
5/16"-18 x 1-3/4" Square Head Machine Bolt, Black Oxide
Sold Out
5/16"-18 x 2" Square Head Machine Bolt, Plain
5/16"-18 x 2" Square Head Machine Bolt, Black Oxide
5/16"-18 x 2-1/4" Square Head Machine Bolt, Black Oxide
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5/16"-18 x 2-1/2" Square Head Machine Bolt, Black Oxide
Sold Out
5/16"-18 x 2-1/2" Square Head Machine Bolt, Plain
5/16"-18 x 3" Square Head Machine Bolt, Black Oxide
5/16"-18 x 3-1/2"" Square Head Machine Bolt, Black Oxide
5/16"-18 x 4" Square Head Machine Bolt, Black Oxide
Sale
5/16"-18 x 4" Square Head Machine Bolt, Reduced Shank, Black Oxide
Save $0.62
5/16"-18 x 5" Square Head Machine Bolt, Black Oxide
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5/16"-18 x 6" Square Head Machine Bolt, Plain
5/16"-18 x 6" Square Head Machine Bolt, Black Oxide
5/16"-18 x 8" Square Head Machine Bolt, Plain
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