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8 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 .

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

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BHAMALSquare Head BoltSteelPlain3/4-10 x 83/4-10x8 square head m/b plain b18.2.140
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ASMCILSquare Head BoltGrade AZinc/Clear1/2-13 x 8a307 gra square hd m/b low carb zp b18.2.128
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ASMCILSquare Head BoltGrade APlain1/2-13 x 81/2-13x8 (pt) unc a307 gra square hd machine bolt low carb pln b18.2.113
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BIG BOLTILSquare Head BoltGrade 8Plain3/4-10 x 8bolt & c/s square boltsquare b18.2.1800
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BIG BOLTILSquare Head BoltGrade 5Plain3/4-16 x 8bolt & c/s square boltb18.2.1650
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BIG BOLTILSquare Head BoltGrade 5Plain1 3/4-5 x 8bolt & c/s square boltb18.2.1512
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BIG BOLTILSquare Head BoltGrade 8Plain5/8-11 x 8bolt & c/s square boltsquare b18.2.1400
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BIG BOLTILSquare Head BoltGrade 8Plain1/2-13 x 8bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/4-7 x 8bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 8Plain1 3/4-5 x 8bolt & c/s square boltsquare b18.2.1280
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BIG BOLTILSquare Head BoltSteelPlain1 3/8-6 x 8bolt & c/s square boltb18.2.1681
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/8-7 x 8bolt & c/s square boltb18.2.1400
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BIG BOLTILSquare Head BoltSteelPlain1/4-20 x 8bolt & c/s square boltsquare b18.2.11000
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BIG BOLTILSquare Head BoltGrade 5Plain1-8 x 8bolt & c/s square boltsquare b18.2.1750
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BIG BOLTILSquare Head BoltGrade 8Plain3/8-16 x 8bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltSteelPlain2-4 1/2 x 8bolt & c/s square boltsquare b18.2.1361
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BIG BOLTILSquare Head BoltGrade 8Plain1-8 x 8bolt & c/s square boltsquare b18.2.1350
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BIG BOLTILSquare Head BoltGrade 5Plain3/8-16 x 8bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 5Plain7/8-9 x 8bolt & c/s square boltsquare b18.2.1450
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BIG BOLTILSquare Head BoltGrade 5Plain1/2-13 x 8bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 5Plain3/4-10 x 8bolt & c/s square boltsquare b18.2.1860
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CascadeORSquare Head BoltSteelPlain5/8-11 x 8square m/b b18.2.124
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B & K FASTPASquare Head BoltGrade 8Plain1 1/2-12 x 81 1/2-12 x 8 square bolts gr 8 plain b18.2.11
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B & K FASTPASquare Head BoltSteelPlain5/8-11 x 85/8-11 x 8 square bolts plain b18.2.1154
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THRDFASTTNSquare Head BoltGrade 5Plain1-8 x 8gr5 square hd bolt b18.2.13
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THRDFASTALSquare Head BoltSteelGalvanized3/4-10 x 8square hd bolt hdg b18.2.1697
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THRDFASTALSquare Head BoltSteelGalvanized5/8-11 x 8square hd bolt hdg b18.2.1594
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THRDFASTALSquare Head BoltSteelGalvanized1/2-13 x 8square hd bolt rt4 hdg b18.2.1100
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THRDFASTALSquare Head BoltSteelGalvanized3/4-10 x 8square hd bolt hdg b18.2.125
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THRDFASTALSquare Head BoltSteelGalvanized3/4-10 x 8square hd bolt hdg b18.2.14
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THRDFASTALSquare Head BoltSteelGalvanized5/8-11 x 8square hd bolt rt4 hdg w/nut b18.2.15
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KBSTNSquare Head BoltGrade 8Plain1-8 x 81-8 x 8 square!machbolt gr-8 b18.2.152
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KBSTNSquare Head BoltGrade 8Plain1 1/4-7 x 81-1/4-7 x 8 square!machbolt gr-8 b18.2.124
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KBSTNSquare Head BoltGrade 8Plain1 3/4-5 x 81-3/4-5 x 8 square!machbolt gr-8 b18.2.110
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KBSTNSquare Head BoltGrade 5Plain7/8-9 x 87/8-9 x 8 square mach.bolt gr-5 b18.2.120
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