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4 1/4 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 .

10 results, (click on any line for more information)
Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
ACCURATEILSquare Head BoltSteelPlain7/8-9 x 4 1/4bolt square machine25
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LibertyILSquare Head BoltSteelZinc/Yellow3/8-16 x 4 1/4square m/b & machine bolt &90
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BIG BOLTILSquare Head BoltSteelPlain3/8-16 x 4 1/4bolt & c/s square boltsquare b18.2.12582
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/8-7 x 4 1/4bolt & c/s square boltb18.2.1540
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United StILSquare Head BoltGrade 8Plain1-8 x 4 1/4 x 3 7/8square head 392
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United StILSquare Head BoltGrade 5Plain1-8 x 4 1/4square thin head 1,885
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SRFALSquare Head BoltGrade 2Plain3/8-16 x 4 1/4square hd bolt398
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SRFALSquare Head BoltGrade 2Plain1/2-13 x 4 1/4square hd bolt319
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 4 1/4square m/b100
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ACCURATEILSquare Head BoltSteelZinc/Clear5/16-18 x 4 1/4square m/b1,200
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