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16 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 .

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

Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
BIG BOLTILSquare Head BoltGrade 5Plain3/4-16 x 16bolt & c/s square boltb18.2.1700
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/4-7 x 16bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/8-7 x 16bolt & c/s square boltsquare b18.2.1 b18.2.1400
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BIG BOLTILSquare Head BoltGrade 5Plain5/8-11 x 16bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 5Plain1 3/8-12 x 16bolt & c/s square boltb18.2.1200
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BIG BOLTILSquare Head BoltGrade 8Plain1-8 x 16bolt & c/s square boltsquare b18.2.1150
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BIG BOLTILSquare Head BoltSteelPlain5/16-18 x 16bolt & c/s square boltsquare b18.2.11000
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BIG BOLTILSquare Head BoltGrade 5Plain1 3/4-5 x 16bolt & c/s square boltb18.2.1910
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/8-7 x 16bolt & c/s square boltsquare b18.2.1 b18.2.1300
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BIG BOLTILSquare Head BoltGrade 5Plain3/8-16 x 16bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltGrade 5Plain1-8 x 16bolt & c/s square boltsquare b18.2.1400
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BIG BOLTILSquare Head BoltSteelPlain5/16-18 x 16bolt & c/s square boltsquare b18.2.1500
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BIG BOLTILSquare Head BoltSteelPlain1/4-20 x 16bolt & c/s square boltsquare b18.2.11000
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BIG BOLTILSquare Head BoltGrade 8Plain3/4-10 x 16bolt & c/s square boltsquare b18.2.1200
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/8-12 x 16bolt & c/s square boltb18.2.1200
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QFCTXSquare Head BoltGrade AGalvanized3/4-10 x 163/4-10x16 square head bolt a307 hdg 6 thd b18.2.1237
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QFCTXSquare Head BoltGrade AGalvanized3/4-10 x 163/4-10x16 square head bolt a307 hdg 6 thd b18.2.120
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B & K FASTPASquare Head BoltSteelGalvanized7/8-9 x 167/8-9 x 16 galv square bolts 6 thread b18.2.132
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B & K FASTPASquare Head BoltSteelPlain1 3/8-6 x 161 3/8-6 x 16 square bolts plain b18.2.12
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THRDFASTFLSquare Head BoltSteelGalvanized3/4-10 x 16square hd bolt hdg b18.2.124
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THRDFASTOKSquare Head BoltSteelGalvanized5/8-11 x 16square hd bolt hdg b18.2.12
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THRDFASTALSquare Head BoltSteelGalvanized3/4-10 x 16square hd bolt rt6 hdg b18.2.125
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THRDFASTALSquare Head BoltSteelGalvanized1/2-13 x 16square hd bolt hdg b18.2.162
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KBSTNSquare Head BoltGrade 8Plain1 1/4-7 x 161-1/4-7 x 16 square!machbolt gr-8 b18.2.123
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THRDFASTALSquare Head BoltSteelGalvanized5/8-11 x 16double arming bolt hdg w/4-sq nuts assm b18.2.1152
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