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1 1/2 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 .

22 results, (click on any line for more information)
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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BIG BOLTILSquare Head BoltGrade 5Plain1/2-13 x 1 1/2bolt & c/s square boltsquare fulthr b18.2.13201
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BIG BOLTILSquare Head BoltGrade 5Plain5/8-11 x 1 1/2bolt & c/s square boltsquare b18.2.115000
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BIG BOLTILSquare Head BoltGrade 5Plain3/8-16 x 1 1/2bolt & c/s square boltsquare b18.2.13100
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AbabaCASquare Head BoltSteelPlain1/4-20 x 1 1/21/4-20 x 1 1/2 sq hd blt steel pln b18.2.1200
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ASMCILSquare Head BoltGrade AZinc/Clear3/8-16 x 1 1/2a307 gra square hd m/b low carb zp b18.2.1750
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ASMCILSquare Head BoltGrade AGalvanized5/16-18 x 1 1/2a307 gra square hd m/b low carb hdg b18.2.1625
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ASMCILSquare Head BoltGrade AZinc/Clear1/2-13 x 1 1/2a307 gra square hd m/b low carb zp b18.2.1229
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JET FITTINGCASquare Head BoltGrade APlain1/2-13 x 1 1/21/2-13x1 1/2 a307 gr a square hd bolt p 747172 b18.2.1157
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B & K FASTPASquare Head BoltSteelGalvanized1/4-20 x 1 1/21/4-20 x 1 1/2 galv square bolts b18.2.153
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B & K FASTPASquare Head BoltSteelPlain5/16-18 x 1 1/25/16-18 x 1 1/2 square bolts plain b18.2.11126
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 square bolts plain b18.2.1323
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OSSCORISquare Head BoltSteelPlain5/16-18 x 1 1/25/16-18x1 1/2 square hd mach bolt b18.2.129
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OSSCORISquare Head BoltSteelPlain3/8-16 x 1 1/23/8-16x1 1/2 square hd mach bolt b18.2.1434
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Bostwick INSquare Head BoltGrade 5Plain5/8-11 x 1 1/25/8-11 x 1 1/2 square hd bolt gr 5 b18.2.19
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Bostwick INSquare Head BoltGrade 2Plain1/2-13 x 1 1/21/2-13 x 1 1/2 square hd bolt grade 2 b18.2.170
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THRDFASTALSquare Head BoltSteelGalvanized5/8-11 x 1 1/2square hd bolt hdg b18.2.110
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KBSTNSquare Head BoltSteelPlain5/16-18 x 1 1/25/16-18 x 1 1/2 square hd mach.bolt b18.2.1220
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KBSTNSquare Head BoltSteelPlain3/8-16 x 1 1/23/8-16 x 1 1/2 square hd mach.bolt b18.2.12,048
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THRDFASTALSquare Head BoltSteelGalvanized1/2-13 x 1 1/2square hd bolt hdg b18.2.1575
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THRDFASTMSSquare Head BoltSteelPlain#7/16-14 x 1 1/2square hd bolt b18.2.190
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WSBKYSquare Head BoltGrade 2Plain5/8-11 x 1 1/2blt fullthread sqr gr2 (pl) 5/8-11x1 1/2 b18.2.11,283
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FACCAOntSquare Head BoltGrade AGalvanized1/2-13 x 1 1/2square hd machine bolt w/square nut 1/2-13 unc x 1-1/2 lg grade a steel as per astm a307 galvanized as per csa g164 b18.2.1600
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