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Hex Bolts, Grade A (ASME B18. 2.1)

Hex Machine Bolts are threaded bolts with a hexagonal head on one end, with no washer face on the bearing surface and a threaded shaft on the other end. Hex bolts are tightened with a wrench and are used to connect metal parts. The body tolerances of hex machine bolts are not as close as those of hex cap screws. Hex machine bolts are covered under ASME Standard B18.2.1

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCAHex Machine BoltGrade APlain1-8 x 121-8 x 12 hex bolt a307 w/2.50 thd cone pt steel p b18.2.15
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AbabaCAHex Machine BoltGrade APlain1-8 x 81-8 x 8 hex bolt a307 w/2.50 thd cone pt steel pl b18.2.14
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AbabaCAHex Machine BoltGrade AGalvanized1 1/2-6 x 2 1/21 1/2-6 x 2 1/2 hex bolt a307a stl hdg b18.2.14
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 11/2-13x1 hex hd bolt a307 stl zc b18.2.1 () () ()2026
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GLFOHHex Machine BoltGrade AGalvanized1/2-13 x 1 1/41/2-13x1-1/4 hex hd bolt a307 stl hdg b18.2.1 () () ()273
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GLFOHHex Machine BoltGrade APlain1/2-13 x 1 1/21/2-13x1-1/2 hex hd bolt a307 stl pln b18.2.1 () () ()439
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 1 1/41/2-13x1-1/4 hex hd bolt a307 stl zc b18.2.1 () () ()257
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 1 3/41/2-13x1-3/4 hex hd bolt a307 stl zc b18.2.1 () () ()190
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 2 1/21/2-13x2-1/2 hex hd bolt a307 stl zc b18.2.1 () () ()1133
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GLFOHHex Machine BoltGrade AGalvanized1/2-13 x 21/2-13x2 hex hd bolt a307 stl hdg b18.2.1 () () ()17
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 21/2-13x2 hex hd bolt a307 stl zc b18.2.1 () () ()28
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GLFOHHex Machine BoltGrade AZinc/Clear1/2-13 x 31/2-13x3 hex hd bolt a307 stl zc b18.2.1 () () ()100
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ASMCILHex Machine BoltGrade AGalvanized3/8-16 x 2 1/23/8-16x2 1/2 (pt) coarse a307 gra hex bolt low carb hdg b18.2.1200
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ASMCILHex Machine BoltGrade AZinc/Clear1 1/4-7 x 121 1/4-7x12 6 thd coarse a307 gra hex bolt low carb zp b18.2.14
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 4 1/23/8-16 x 4-1/2 astm a307 grade a zinc finish hex bolt b18.2.1175
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SIIINHex Machine BoltGrade AZinc/Clear1/4-20 x 1/21/4-20 x 1/2 astm a307 grade a zinc finish hex bolt b18.2.11925
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SIIINHex Machine BoltGrade AZinc/Clear1/4-20 x 2 1/41/4-20 x 2-1/4 astm a307 grade a zinc finish hex bolt b18.2.1500
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SIIINHex Machine BoltGrade AZinc/Clear5/16-18 x 3/45/16-18 x 3/4 astm a307 grade a zinc finish hex bolt b18.2.11350
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SIIINHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/25/16-18 x 1-1/2 astm a307 grade a zinc finish hex bolt b18.2.11171
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SIIINHex Machine BoltGrade AZinc/Clear5/16-18 x 1 3/45/16-18 x 1-3/4 astm a307 grade a zinc finish hex bolt b18.2.1625
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SIIINHex Machine BoltGrade AZinc/Clear5/16-18 x 2 1/45/16-18 x 2-1/4 astm a307 grade a zinc finish hex bolt b18.2.1650
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SIIINHex Machine BoltGrade AZinc/Clear5/16-18 x 45/16-18 x 4 astm a307 grade a zinc finish hex bolt b18.2.1625
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 1/23/8-16 x 1/2 astm a307 grade a zinc finish hex bolt b18.2.11100
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 3/43/8-16 x 3/4 astm a307 grade a zinc finish hex bolt b18.2.12353
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 1 1/43/8-16 x 1-1/4 astm a307 grade a zinc finish hex bolt b18.2.1450
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 1 1/23/8-16 x 1-1/2 astm a307 grade a zinc finish hex bolt b18.2.1600
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 1 3/43/8-16 x 1-3/4 astm a307 grade a zinc finish hex bolt b18.2.154
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 23/8-16 x 2 astm a307 grade a zinc finish hex bolt b18.2.11002
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 2 1/43/8-16 x 2-1/4 astm a307 grade a zinc finish hex bolt b18.2.1250
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 2 1/23/8-16 x 2-1/2 astm a307 grade a zinc finish hex bolt b18.2.1474
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 33/8-16 x 3 astm a307 grade a zinc finish hex bolt b18.2.1200
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 3 1/23/8-16 x 3-1/2 astm a307 grade a zinc finish hex bolt b18.2.125
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 6 1/23/8-16 x 6-1/2 astm a307 grade a zinc finish hex bolt b18.2.1183
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SIIINHex Machine BoltGrade AZinc/Clear3/8-16 x 73/8-16 x 7 astm a307 grade a zinc finish hex bolt b18.2.1200
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QFCTXHex Machine BoltGrade ADip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 85/16-18x8 hex bolt 4 thread (a307) gr2 magni 565 b18.2.19046
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QFCTXHex Machine BoltGrade AGalvanized1/4-20 x 1 1/21/4-20x1 1/2 hex head bolt a307 hdg b18.2.11900
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QFCTXHex Machine BoltGrade AGalvanized1/4-20 x 1 3/41/4-20x1 3/4 hex head bolt a307 hdg b18.2.1611
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QFCTXHex Machine BoltGrade AGalvanized1/4-20 x 21/4-20x2 hex head bolt a307 hdg b18.2.122
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QFCTXHex Machine BoltGrade AZinc/Clear1/4-20 x 6 1/21/4-20x6 1/2 hex head bolt a307 zinc b18.2.190
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QFCTXHex Machine BoltGrade AZinc/Clear3/8-16 x 13/8-16x1 hex head bolt a307 zinc b18.2.190
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 1 1/43/8-16x1-1/4 hex head bolt a307 hdg b18.2.11176
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 1 1/23/8-16x1 1/2 hex head bolt a307 hdg b18.2.13163
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 1 1/23/8-16x1 1/2 hex head bolt a307 hdg b18.2.178
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 2 1/23/8-16x2 1/2 hex machine bolt a307 hdg b18.2.137
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 3/43/8-16x3/4 hex head bolt a307 hdg b18.2.171
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QFCTXHex Machine BoltGrade AGalvanized3/8-16 x 3/43/8-16x3/4 hex head bolt a307 hdg b18.2.14
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 10 1/21/2-13x10 hex head bolt a307 hdg 1 1/2 thd b18.2.154
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 11/2-13x1 a307 hex machine bolt hdg b18.2.1812
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 11/2-13x1 hex hd bolt a307 hdg dom b18.2.110
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 11/2-13x1 hex hd bolt a307 hdg dom b18.2.137
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 1 1/21/2-13x1 1/2 hex machine bolt a307 hdg ft b18.2.1332
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 1 3/41/2-13x1 3/4 hex head bolt a307 hdg dom b18.2.1117
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 1 3/41/2-13x1 3/4 hex head bolt a307 hdg b18.2.13256
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QFCTXHex Machine BoltGrade AGalvanized1/2-13 x 3/41/2-13x3/4 hex head bolt a307 hdg b18.2.13244
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CascadeORHex Machine BoltGrade AZinc/Clear7/8-9 x 5 1/2a307 h/b b18.2.16000
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B & K FASTPAHex Machine BoltGrade AGalvanized1 1/4-7 x 261 1/4-7 x 26 hex head bolts w/8 thread galv a307 grade-a b18.2.112
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 5/8bolt hex 5/1618x5/8 a307 steel zinc plated b18.2.1346
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 3/45/16-18x3/4 (pt) hex bolt steel a307 zinc plated b18.2.1500
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 7/8bolt hex 5/1618x7/8 a307 steel zinc plated b18.2.1559
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 15/16-18x1 (pt) hex bolt steel a307 zinc plated b18.2.1950
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/2bolt hex 5/16-18x1-1/2 ft steel a307 zinc plated b18.2.1500
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 2 1/2bolt hex 5/1618x2-1/2 a307 steel zinc plated b18.2.12455
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 2 1/2bolt hex 5/1618x2-1/2 a307 steel zinc plated b18.2.150
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 2 1/2bolt hex 5/16-18x2-1/2 ft steel a307 zinc plated b18.2.150
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JET FITTINGCAHex Machine BoltGrade A< /td>Zinc/Clear5/16-18 x 2 3/4bolt hex 5/1618x2-3/4 a307 steel zinc plated b18.2.1200
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 3 1/4bolt hex 5/1618x3-1/4 a307 steel zinc plated b18.2.1103
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 4bolt hex 5/16-18x4 steel a307 zinc plated b18.2.125
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear5/16-18 x 4 1/2bolt hex 5/16-18x4-1/2 steel a307 zinc plated b18.2.1300
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JET FITTINGCAHex Machine BoltGrade ABlack Oxide3/8-16 x 1/2bolt hex 3/816x1/2 a307 steel black oxide b18.2.11600
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear3/8-16 x 13/8-16x1 (ft) hex bolt steel a307 zinc plated b18.2.1127
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear3/8-16 x 13/8-16x1 (ft) hex bolt steel a307 zinc plated b18.2.11100
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JET FITTINGCAHex Machine BoltGrade ABlack Oxide3/8-16 x 2bolt hex 3/816x2 a307 steel black oxide b18.2.1200
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear3/8-16 x 2 3/4bolt hex 3/816x2-3/4 a307 steel zinc plated b18.2.1250
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JET FITTINGCAHex Machine BoltGrade ABlack Oxide3/8-16 x 3bolt hex 3/816x3 a307 steel black oxide b18.2.1600
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear3/8-16 x 3 1/4bolt hex 3/816x3-1/4 a307 steel zinc plated b18.2.11275
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JET FITTINGCAHex Machine BoltGrade AZinc/Clear3/8-16 x 4 1/2bolt hex 3/816x4 1/2 a307 steel zinc plated b18.2.1584
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