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1 3/8 inch length 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 .

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

Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
XL ScrewGASquare Head BoltSteelZinc/Clear5/16-18 x 1 3/8f/t square hd m/b astm a307 zp1,200
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XL ScrewGASquare Head BoltSteelZinc/Clear5/16-18 x 1 3/8square hd m/b std thrd fsb astm a307 zp1,200
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WDMBIASquare Head BoltSteelPlain3/16 x 1 3/8e/key mach sqr b st (pl) 3/16x1 3/8 drw (W010) (W010) (W010)40,394
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QCSORSquare Head BoltSteelZinc/Clear5/16-18 x 1 3/85/16-18x1-3/8 square head cap screw gold plated2200
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ISSCOMOSquare Head BoltGrade 2Plain1/4-20 x 1 3/83450
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Palmer BoltOHSquare Head BoltSteelZinc/Clear5/16-18 x 1 3/8square mach bolt1,272
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