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5/8-18 Square Head Bolts

Square Head Bolts were once the most common form of bolt, until they were replaced by hex head bolts. They are covered under ANSI Standard B18.2.1 and are now most commonly used for aesthetic purposes to provide a rustic look .

5 results, (click on any line for more information)

Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
General FMISquare Head BoltGrade 8Plain5/8-18 x 2 1/45/8-18x2.25 square hd stop bolt gr8 b18.2.124,272
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FastWareSaskSquare Head BoltGrade 5Zinc/Clear5/8-18 x 3 1/8nc square m/b 0.921 af 1 3/4 tl rev g2,030
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AmericanNYSquare Head BoltGrade 5Plain5/8-18 x 3 1/2square m/b300
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BIG BOLTILSquare Head Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-18 x 10bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)b18.2.1500
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BIG BOLTILSquare Head Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-18 x 12bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)b18.2.1300
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