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1 3/4 inch length Square Head Bolts (ASME B18. 2.1)

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 .

11 results, (click on any line for more information)
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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BIG BOLTILSquare Head BoltGrade 5Plain1/2-13 x 1 3/4bolt & c/s square boltsquare b18.2.16800
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ASMCILSquare Head BoltGrade AGalvanized1/2-13 x 1 3/4a307 gra square hd m/b low carb hdg b18.2.1340
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 1 3/43/8-16x1 3/4 a307 gr a square hd bolt p 747094 b18.2.1255
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QFCTXSquare Head BoltGrade A36Galvanized1/4 x 1 3/4 x 1 3/41/4 x 1 3/4 x 1 3/4 sq. ring fill plate a36 hdg (for 5/8 bolt) AS36849 b18.2.14
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B & K FASTPASquare Head BoltGrade 5Plain1/2-13 x 1 3/41/2-13 x 1 3/4 square bolts gr 5 plain b18.2.14
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 1 3/41/2-13 x 1 3/4 square bolts plain full thread b18.2.11
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B & K FASTPASquare Head BoltGrade 2Plain3/4-10 x 1 3/43/4-10 x 1 3/4 square bolts gr 2 plain b18.2.110
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 1 3/43/8-16x1-3/4 (pt) square bolt steel a307 plain b18.2.1250
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THRDFASTOKSquare Head BoltSteelPlain1/2-13 x 1 3/4square hd bolt b18.2.1480
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THRDFASTTNSquare Head BoltSteelPlain1/2-13 x 1 3/4square hd bolt b18.2.150
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THRDFASTTNSquare Head BoltGrade B8MPlain5/8-11 x 1 3/4a193 b8m sq bolt b18.2.15
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