1 1/2 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 .

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Buy Square Head Bolts from one of our FCH Network Partners
SupplierLocTypeMaterialFinishSizeDescriptionQty 
Zoro Tools Inc.Square Head BoltSilicon BronzePlain1 1/21-1/2 bronze sq hd pl no lead
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Zoro Tools Inc.Square Head BoltSteelPlain1 1/2-61-1/2-6 carbon steel square bolt die
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Buy Square Head Bolts from one of our FCH Network Members
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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AmericanNYSquare Head BoltSteelPlain1 1/2 x 7square bolt2
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HayesCASquare Head BoltSteelPlain1 1/2-6 x 11 3/81 1/2-6 x 11 3/8 square hd bolt pln4
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ACCURATEILSquare Head BoltSteelPlain1 1/2-6 x 18bolt square machine3
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ACCURATEILSquare Head BoltSteelPlain1 1/2-6 x 5 1/2bolt square machine2
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ACCURATEILSquare Head BoltSteelPlain1 1/2-6 x 12bolt square machine11
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CNBILSquare Head Bolt316, 317, A4 StainlessPlain1 1/2-6 x 10square m/b, 316 ss3
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CNBILSquare Head BoltSteelPlain1 1/2-6 x 31 1/2square m/b, 4140, ht to 250/280 bhn, 5 useable thread,1
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CNBILSquare Head Bolt316, 317, A4 StainlessPlain1 1/2-6 x 9square m/b, 316 ss1
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-6 x 20bolt & c/s square boltb18.2.1100
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-12 x 5bolt & c/s square boltb18.2.1430
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/2-6 x 20bolt & c/s square boltsquare b18.2.175
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-6 x 9bolt & c/s square boltb18.2.1300
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BIG BOLTILSquare Head BoltGrade 8Plain1 1/2-6 x 12bolt & c/s square boltsquare b18.2.1250
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-6 x 12bolt & c/s square boltsquare b18.2.1163
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BIG BOLTILSquare Head BoltGrade 5Plain1 1/2-6 x 18bolt & c/s square boltb18.2.1100
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MidStatesMISquare Head BoltGrade 8Plain1 1/2-6 x 8 1/2square hd bolt9
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KBSTNSquare Head BoltGrade 8Plain1 1/2-6 x 121-1/2-6 x 12 square mach bolt gr-8 b18.2.125
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KBSTNSquare Head BoltGrade 8Plain1 1/2-6 x 61-1/2-6 x 6 square mach bolt gr-8 b18.2.131
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KBSTNSquare Head BoltGrade 8Plain1 1/2-6 x 71-1/2-6 x 7 square mach bolt gr-8 b18.2.11
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GLFOHSquare Head BoltGrade 2Plain1 1/2-6 x 6square hd bolt stl225
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BRIGHBESTILSquare Head BoltSteelBlack Oxide1 1/2-6 x 31 1/2-6 x 3 sq hd black oxide28
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Valley NuWASquare Head BoltSteelPlain1 1/2bmi 150# square hd plug usa1
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Valley NuWASquare Head BoltSteelGalvanized1 1/2square hd plug usa1
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J&L INSquare Head BoltGrade 5Plain1 1/2-6 x 111/2 gr5 sq hd1.75tkx2 5/8atf1
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J&L INSquare Head BoltGrade 5Plain1 1/2-6 x 113/4 gr5 square hd bolt1
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ACCURATEILSquare Head BoltSteelPlain1 1/2-6 x 12square m/b12
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ACCURATEILSquare Head BoltSteelPlain1 1/2-6 x 18square m/b11
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