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Square Head Bolts, Plain

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 .

> 200 matches, . Showing 200, (click on any line for more information)

Buy Square Head Bolts from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
WeaverWASquare Head BoltGrade 5Plain5/8-11 x 2 3/4 gr5 square hd bolt plain13
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JacksonMSSquare Head BoltGrade 2Plain1/2-13 x 1 1/4square bolt gr. 2400
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JacksonMSSquare Head BoltGrade 2Plain1/2-13 x 4 1/2square bolt gr. 21
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JacksonMSSquare Head BoltGrade 2Plain3/4-10 x 3 1/2square bolt gr. 22
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JacksonMSSquare Head BoltGrade 2Plain1 1/8 x 4nc square bolt gr. 278
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JacksonMSSquare Head BoltGrade 5Plain1/2-13 x 3 1/2square2
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JacksonMSSquare Head BoltGrade 5Plain1/2-13 x 4nc square bolt gr. 5 fastenel # 0168684 or equal167
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JacksonMSSquare Head BoltGrade 5Plain5/8-11 x 4 1/2nc square bolt gr. 5 f/t5
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JacksonMSSquare Head BoltGrade 5Plain3/4-10 x 4 1/2square25
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JacksonMSSquare Head BoltGrade 5Plain1-8 x 3 1/2square25
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JacksonMSSquare Head BoltGrade 8Plain5/8-11 x 2 1/2square bolt gr. 81
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JacksonMSSquare Head BoltGrade 8Plain5/8-11 x 4 1/25/8-11x4-1/2 square bolt gr. 81
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JacksonMSSquare Head BoltGrade 8Plain3/4-10 x 3 1/2square bolt gr. 82
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JacksonMSSquare Head BoltGrade 8Plain1 1/4 x 6square bolt gr. 810
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JacksonMSSquare Head BoltGrade 2Plain1/2-13 x 81/2-13x8 square head bolt gr. 2 plain100
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JacksonMSSquare Head BoltGrade 5Plain1-8 x 11 square head grade 5 plain2
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JacksonMSSquare Head BoltGrade 5Plain1-8 x 12 square head grade 5 plain3
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JacksonMSSquare Head BoltGrade 8Plain1 1/4 x 12 square head bolt gr. 8 plain4
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WeaverWASquare Head BoltGrade 5Plain5/8-11 x 3 1/25/8-11x3 1/2 gr5 square hd bolt plain14
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WeaverWASquare Head BoltGrade 5Plain7/8-9 x 67/8-9x6 gr5 square hd bolt plain12
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JacksonMSSquare Head BoltGrade 2Plain1 8 x 31 8 x 3 nc square head bolt gr. 2 plain52
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JacksonMSSquare Head BoltGrade 8Plain5/8-11 x 35/8-11 x 3 square head bolt gr. 8 plain19
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JacksonMSSquare Head BoltGrade 5Plain1-8 x 13square2
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YANKEENHSquare Head BoltSteelPlain5/16-18 x 35/16-18 x 3 square hd bolt136
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YANKEENHSquare Head BoltSteelPlain5/16-18 x 1 3/45/16-18 x 1-3/4 square head bolt342
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YANKEENHSquare Head BoltSteelPlain5/16-18 x 25/16-18 x 2 square hd bolt192
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YANKEENHSquare Head BoltSteelPlain3/8-16 x 43/8-16 x 4 square hd bolt334
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YANKEENHSquare Head BoltGrade APlain1/2-13 x 1 1/21/2-13 x 1-1/2 square head bolt astm a307106
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YANKEENHSquare Head BoltGrade 5Plain1/2-13 x 1 1/21/2-13 x 1-1/2 square head bolt grade 5 plain finish53
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YANKEENHSquare Head BoltSteelPlain1/2-13 x 21/2-13 x 2 square hd bolt2
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YANKEENHSquare Head BoltGrade APlain1/2-13 x 2 1/21/2-13 x 2-1/2 square head bolt astm a307292
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YANKEENHSquare Head BoltSteelPlain1/2-13 x 3 1/21/2-13 x 3 1/2 square hd bolt120
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YANKEENHSquare Head BoltSteelPlain1/2-13 x 51/2-13 x 5 square hd bolt11
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YANKEENHSquare Head BoltSteelPlain5/8-11 x 25/8-11 x 2 square hd bolt19
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YANKEENHSquare Head BoltSteelPlain5/8-11 x 2 1/25/8-11 x 2 1/2 square hd bolt7
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YANKEENHSquare Head BoltSteelPlain5/8-11 x 45/8-11 x 4 square hd bolt20
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YANKEENHSquare Head BoltSteelPlain3/4-10 x 2 1/43/4-10 x 2 1/4 square hd bolt70
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YANKEENHSquare Head BoltSteelPlain3/4-10 x 4 1/23/4-10 x 4 1/2 square hd bolt2
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YANKEENHSquare Head BoltSteelPlain3/4-10 x 3 1/23/4-10 x 3 1/2 square hd bolt17
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YANKEENHSquare Head BoltSteelPlain3/4-10 x 43/4-10 x 4 square hd bolt35
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YANKEENHSquare Head BoltSteelPlain3/4-10 x 63/4-10 x 6 square hd bolt26
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YANKEENHSquare Head BoltSteelPlain7/8-9 x 47/8-9 x 4 square hd bolt17
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YANKEENHSquare Head BoltSteelPlain1/2-13 x 4square bolt finish163
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AbabaCASquare Head BoltSteelPlain3/8-16 x 5 1/23/8-16 x 5-1/2 sq hd bolt steel pln b18.2.1189
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AbabaCASquare Head BoltSteelPlain3/8-16 x 2 1/23/8-16 x 2 1/2 sq hd bolt steel pln b18.2.11
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AbabaCASquare Head BoltSteelPlain1/2-13 x 41/2-13 x 4 sq hd bolt steel pln b18.2.11
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AbabaCASquare Head BoltGrade 8Plain3/4-10 x 2 1/23/4-10 x 2-1/2 square head bolt gr.8 plain b18.2.130
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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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AbabaCASquare Head BoltSteelPlain1/4-20 x 21/4-20 x 2 sq hd blt full thrd steel pln b18.2.12190
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Set ScrewILSquare Head BoltSteelPlain1/2-13 x 1square knurled cup point heat treat r/c-45 per printinquire
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Set ScrewILSquare Head BoltGrade 8Plain1 1/8-7 x 15.01 1/8-7x15.0 grade 8 square boltinquire
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ACCURATEILSquare Head BoltSteelPlain1/2-13 x 6 1/21/2-13x6 1/2 bolt square machine plain80
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ACCURATEILSquare Head BoltSteelPlain1-8 x 5bolt square machine30
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ACCURATEILSquare Head BoltSteelPlain1/4-20 x 2 1/2bolt square machine black350
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ACCURATEILSquare Head BoltSteelPlain1/4-20 x 3 1/4bolt square machine200
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ACCURATEILSquare Head BoltSteelPlain1/2-13 x 1 3/4bolt square machine600
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ACCURATEILSquare Head BoltSteelPlain5/8-11 x 8 1/2bolt square machine50
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ACCURATEILSquare Head BoltSteelPlain5/8-11 x 1 1/4bolt square machine540
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 1 1/2bolt square machine105
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 16bolt square machine2
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 1 3/4bolt square machine65
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 18bolt square machine4
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 3 1/4bolt square machine93
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ACCURATEILSquare Head BoltSteelPlain7/8-9 x 4 1/4bolt square machine25
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ACCURATEILSquare Head BoltSteelPlain1-8 x 15bolt square machine20
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ACCURATEILSquare Head BoltSteelPlain1-8 x 8bolt square machine28
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ACCURATEILSquare Head BoltSteelPlain1/4-20 x 3bolt square machine150
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ACCURATEILSquare Head BoltSteelPlain1/2-13 x 2 1/2bolt plow #4 square50
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ACCURATEILSquare Head BoltSteelPlain1/2-13 x 1 1/2bolt square machine40
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ACCURATEILSquare Head BoltSteelPlain3/8-16 x 2 3/4bolt square machine300
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ACCURATEILSquare Head BoltSteelPlain3/8-16 x 3 1/23/8-16x3 1/2 bolt square machine plain300
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AmericanNYSquare Head BoltGrade 5Plain5/16-24 x 15/16-24 x 1 square bolt grade 52220
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AmericanNYSquare Head BoltGrade 5Plain5/16-24 x 15/16-24 x 1 square bolt grade 5 plain672
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AmericanNYSquare Head BoltSteelPlain5/6-18 x 5 1/2square bolt250
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AmericanNYSquare Head BoltSteelPlain1/4-20 x 5/8square m/b100
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AmericanNYSquare Head BoltSteelPlain5/16-18 x 2 1/2square m/b50
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AmericanNYSquare Head BoltSteelPlain5/16-18 x 4square bolt2450
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AmericanNYSquare Head BoltSteelPlain5/16-18 x 5square bolt700
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AmericanNYSquare Head BoltSteelPlain3/8-16 x 4 1/2square m/b50
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AmericanNYSquare Head BoltSteelPlain1/4-20 x 1 1/4square m/b10000
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AmericanNYSquare Head BoltSteelPlain5/16-18 x 1 1/2square m/b100
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AmericanNYSquare Head BoltSteelPlain5/16-18 x 1 3/4square m/b f/t black60
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AmericanNYSquare Head BoltSteelPlain3/8-16 x 3 1/2square bolt150
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AmericanNYSquare Head BoltSteelPlain1/2-13 x 3 1/4square m/b61
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AmericanNYSquare Head BoltSteelPlain1/2-13 x 4square m/b438
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AmericanNYSquare Head BoltSteelPlain1/2-13 x 19square m/b35
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AmericanNYSquare Head BoltSteelPlain1/2-13 x 25square m/b7
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AmericanNYSquare Head BoltSteelPlain1/4-20 x 4square m/b5900
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AmericanNYSquare Head BoltSteelPlain5/8-11 x 4 1/2square m/b300
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AmericanNYSquare Head BoltSteelPlain5/8-11 x 9square m/b25
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AmericanNYSquare Head BoltGrade 5Plain5/8-18 x 3 1/2square m/b300
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METRO INDOHSquare Head BoltGrade 5Plain5/8-11 x 1 1/2square hd bolt25
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METRO INDOHSquare Head BoltSteelPlain1/2-13 x 3 1/2square hd bolt8
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METRO INDOHSquare Head BoltSteelPlain3/4-10 x 5square hd bolt4
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METRO INDOHSquare Head BoltSteelPlain3/4-10 x 5 1/2square hd bolt30
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METRO INDOHSquare Head BoltSteelPlain5/8-11 x 2 1/4square hd bolt17
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METRO INDOHSquare Head BoltGrade 5Plain1/2-13 x 3 1/2square hd bolt25
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YANKEENHSquare Head BoltSteelPlain5/8-11 x 75/8-11 x 7 square hd bolt38
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B & K FASTPASquare Head BoltSteelPlain1/4-20 x 5 1/21/4-20 x 5 1/2 square bolts plain b18.2.120
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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 BoltSteelPlain3/8-16 x 1 1/43/8-16 x 1 1/4 square bolts plain b18.2.16
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B & K FASTPASquare Head BoltSteelPlain3/8-16 x 23/8-16 x 2 square bolts plain b18.2.1215
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B & K FASTPASquare Head BoltSteelPlain3/8-16 x 7 1/23/8-16 x 7 1/2 square bolts plain b18.2.12
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 1 1/41/2-13 x 1 1/4 square bolts plain b18.2.12788
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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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B & K FASTPASquare Head BoltGrade 5Plain1/2-13 x 1 3/41/2-13 x 1 3/4 square bolts gr 5 plain b18.2.14
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 1 3/41/2-13 x 1 3/4 square bolts plain full thread b18.2.11
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 21/2-13 x 2 square bolts plain b18.2.1197
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 31/2-13 x 3 square bolts plain b18.2.1244
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 3 1/41/2-13 x 3 1/4 square bolts plain b18.2.1495
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 3 1/21/2-13 x 3 1/2 square bolts plain b18.2.18
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 41/2-13 x 4 square bolts plain b18.2.1708
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 61/2-13 x 6 square bolts plain b18.2.1467
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 61/2-13 x 6 square bolts plain full thread b18.2.1120
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B & K FASTPASquare Head BoltSteelPlain1/2-13 x 191/2-13 x 19 square bolts plain b18.2.138
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B & K FASTPASquare Head BoltSteelPlain5/8-11 x 1 1/45/8-11 x 1 1/4 square bolts plain b18.2.11852
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B & K FASTPASquare Head BoltSteelPlain7/8-9 x 3 1/27/8-9 x 3 1/2 square bolts plain b18.2.1523
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B & K FASTPASquare Head BoltSteelPlain7/8-9 x 47/8-9 x 4 square bolts plain b18.2.11
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JET FITTINGCASquare Head BoltSteelPlain5/16-18 x 3/4bolt square 5/1618x3/4 s b18.2.1600
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JET FITTINGCASquare Head BoltSteelPlain1/2-13 x 11/2-13x1 square machine bolts steel plain b18.2.1450
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JET FITTINGCASquare Head BoltGrade APlain5/16-18 x 3 1/25/16-18x3-1/2 (pt) square bolt steel a307 plain b18.2.1500
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 1 3/43/8-16x1-3/4 (pt) square bolt steel a307 plain b18.2.1250
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 2 3/43/8-16x2 3/4 (pt) bolts square head bolts a307 grade a square head bolt plain (inch) b18.2.1400
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JET FITTINGCASquare Head BoltGrade APlain3/8-16 x 53/8-16x5 (pt) bolts square head bolts a307 grade a square head bolt plain (inch) b18.2.1150
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JET FITTINGCASquare Head BoltGrade APlain1/2-13 x 3 1/21/2-13x3-1/2 (pt) square bolt steel a307 plain b18.2.154
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JET FITTINGCASquare Head BoltGrade APlain1/2-13 x 71/2-13x7 (pt) square bolt steel a307 plain b18.2.125
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JET FITTINGCASquare Head BoltGrade APlain5/8-11 x 3 1/25/8-11x3-1/2 (pt) square bolt steel a307 plain b18.2.195
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CNBILSquare Head BoltGrade 2Plain1 1/4-7 x 13square m/b with 4 inches of thread per drawing b1023 item 35
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CNBILSquare Head BoltGrade 2Plain1/4-20 x 1 1/2square m/b400
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