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Square Head Bolts, Grade 2 (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 .

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

Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
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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QFCTXSquare Head BoltGrade 2Zinc/Clear3/8-16 x 13/8-16x1 sq head bolt gr2 zinc b18.2.170
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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 BoltGrade 2Galvanized7/8-9 x 20tfi square hd bolt rt 7in hdg b18.2.120
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THRDFASTALSquare Head BoltGrade 2Galvanized7/8-9 x 17tfi square hd bolt rt 7in hdg b18.2.158
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THRDFASTALSquare Head BoltGrade 2Galvanized7/8-9 x 19tfi square hd bolt rt 8in hdg b18.2.128
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WSBKYSquare Head BoltGrade 2Zinc/Clear1/4-20 x 1blt sqr gr2 (zn) 1/4-20x1 b18.2.17,994
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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 2Plain5/8-11 x 2 1/2machine bolt square head (no nut) 5/8-11 unc x 2 1/2 long grade 2 low carbon steel plain ansi b18.2.1 b18.2.111,760
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