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5/16 Hex Bolts (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

Hex Machine Bolt (b18.2.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHHex Machine BoltGrade AGalvanized5/16-18 x 3 1/25/16-18x3-1/2 hex hd bolt a307 stl hdg b18.2.1 () () ()725
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 5/85/16-18x5/8 hex hd bolt a307 stl zc b18.2.1 () () ()1700
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/25/16-18x1-1/2 hex hd bolt a307 stl zc b18.2.1 () () ()708
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 2 3/45/16-18x2-3/4 hex hd bolt a307 stl zc b18.2.1 () () ()100
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GLFOHHex Machine BoltGrade AGalvanized5/16-18 x 35/16-18x3 hex hd bolt a307 stl hdg b18.2.1 () () ()75
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 23/32bolt AN5H5A b18.2.1 () () ()52
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GLFOHHex Machine BoltGrade AGalvanized5/16-18 x 2 3/45/16-18x2-3/4 hex hd bolt a307 hdg b18.2.1 () () ()356
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 1 3/32an5-10a b18.2.1 () () ()149
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 1/25/16-18x1/2 hex hd bolt a307 stl zc b18.2.1 () () ()2418
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/45/16-18x1-1/4 hex hd bolt a307 stl zc b18.2.1 () () ()1024
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 1 31/32an5-17a b18.2.1 () () ()201
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 1 11/32an5-12a b18.2.1 () () ()300
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 2 31/32bolt AN5-27 b18.2.1 () () ()65
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 27/32an5-6a b18.2.1 () () ()50
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GLFOHHex Machine BoltSteelCadmium5/16-24 x 3 27/32bolt AN5-36 b18.2.1 () () ()23
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GLFOHHex Machine BoltGrade AZinc/Clear5/16-18 x 15/16-18x1 hex hd bolt a307 stl zc b18.2.1 () () ()1455
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GLFOHHex Machine BoltGrade AGalvanized5/16-18 x 15/16-18x1 hex hd bolt a307 stl hdg b18.2.1 () () ()100
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GLFOHHex Machine BoltGrade APlain5/16-18 x 1 3/45/16-18x1-3/4 hex hd bolt a307 stl pln b18.2.1 () () ()1100
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 15/16-18 x 1 hex bolt stl hdg b18.2.1950
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 15/16-18 x 1 hex bolt stl znc b18.2.13175
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 1 1/45/16-18 x 1 1/4 hex bolt stl znc b18.2.11600
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 1 1/25/16-18 x 1 1/2 hex bolt stl hdg b18.2.11010
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 1 1/25/16-18 x 1 1/2 hex bolt stl znc b18.2.1475
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 25/16-18 x 2 hex bolt stl hdg b18.2.1949
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 25/16-18 x 2 hex bolt stl znc b18.2.11207
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 2 1/45/16-18 x 2 1/4 hex bolt stl znc b18.2.1400
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 2 1/25/16-18 x 2 1/2 hex bolt stl hdg b18.2.1275
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 2 1/25/16-18 x 2 1/2 hex bolt stl znc b18.2.1663
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 2 3/45/16-18 x 2 3/4 hex bolt stl znc b18.2.1280
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 35/16-18 x 3 hex bolt stl znc b18.2.1995
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 3 1/25/16-18 x 3 1/2 hex bolt stl znc b18.2.1196
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 45/16-18 x 4 hex bolt stl hdg b18.2.1105
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 45/16-18 x 4 hex bolt stl znc b18.2.1225
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 4 1/25/16-18 x 4 1/2 hex bolt stl hdg b18.2.1397
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 4 1/25/16-18 x 4 1/2 hex bolt stl znc b18.2.1312
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AbabaCAHex Machine BoltSteelGalvanized5/16-18 x 55/16-18 x 5 hex bolt stl hdg b18.2.1187
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 55/16-18 x 5 hex bolt stl znc b18.2.1125
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AbabaCAHex Machine BoltSteelZinc/Clear5/16-18 x 1/25/16-18 x 1/2 hex bolt stl znc b18.2.11570
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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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StandardMAHex Machine BoltSteelGalvanized5/16-18 x 55/16-18x5 machine bolt galvanized b18.2.11430
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StandardMAHex Machine BoltSteelGalvanized5/16-18 x 5 1/25/16-18x5-1/2 machine bolt galvanized b18.2.1450
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StandardMAHex Machine BoltSteelGalvanized5/16-18 x 75/16-18x7 machine bolt galvanized b18.2.1172
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StandardMAHex Machine BoltSteelGalvanized5/16-18 x 6 1/25/16-18x6-1/2 machine bolt galvanized b18.2.1300
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StandardMAHex Machine BoltSteelGalvanized5/16-18 x 2 1/25/16-18x2-1/2 machine bolt galvanized b18.2.1172
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QFCTXHex Machine BoltGrade 5Plain5/16-18 x 6 1/45/16-18x6 hex bolt grade 5 1-1/4 min thread plain b18.2.1405740
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QFCTXHex Machine BoltGrade 5Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 6 1/45/16-18x6 hex bolt gr5 1-1/4 thread min magni astm f2833 gr1 cof=0.15 b18.2.138058
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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 5Galvanized5/16-18 x 6 1/45/16-18x6 hex bolt grade 5 1-1/4 min thread hdg b18.2.1900
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QFCTXHex Machine BoltSteelPlainbracket 3/16x2 x 3 7/8 (a572-65) w/one hole drill & tap for 5/16-18 unc bolt b18.2.15380
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CascadeORHex Machine BoltSteelZinc/Clear5/16-18 x 1 7/8m/b b18.2.112000
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CascadeORHex Machine BoltSteelPlain5/16-18 x 9m/b b18.2.135
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CascadeORHex Machine BoltSteelGalvanized5/16-18 x 6m/b an b18.2.1400
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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 Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 5/8bolt hex 5/1618x5/8 stainless steel b18.2.1100
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 5/8bolt hex 5/1618x5/8 grade 5 steel zinc plated b18.2.1615
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JET FITTINGCAHex Machine BoltSteelBlack Oxide5/16-18 x 3/4bolt hex 5/16-18x3/4 steel black oxide b18.2.11050
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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 BoltSteelZinc/Clear5/16-18 x 3/4bolt hex 5/1618x3/4 steel zinc plated standard patch lock b18.2.14000
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/4bolt hex 5/1618x3/4 stainless steel b18.2.1500
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 3/4bolt hex 5/1618x3/4 grade 5 steel zinc plated b18.2.150
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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 Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/8bolt hex 5/1618x7/8 stainless steel b18.2.1275
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 7/8bolt hex 5/1618x7/8 grade 5 steel zinc plated b18.2.133
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JET FITTINGCAHex Machine BoltGrade 8Zinc/Yellow5/16-18 x 7/8bolt hex 5/1618x7/8 grade 8 steel zinc plated yellow b18.2.1100
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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 Bolt316, 317, A4 StainlessPlain5/16-18 x 1bolt hex 5/1618x1 stainless steel316 b18.2.1200
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1bolt hex 5/1618x1 stainless steel b18.2.11030
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 1bolt hex 5/1618x1 grade 5 steel zinc plated b18.2.1920
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JET FITTINGCAHex Machine BoltGrade 8Zinc/Yellow5/16-18 x 1bolt hex 5/1618x1 gr8 steel zinc plated yellow b18.2.1300
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 1/4bolt hex 5/1618x1-1/4 stainless steel b18.2.1550
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 1 1/4bolt hex 5/1618x1-1/4 grade 5 steel zinc plated b18.2.150
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JET FITTINGCAHex Machine BoltGrade 8Zinc/Yellow5/16-18 x 1 1/4bolt hex 5/1618x1-1/4 grade 8 zinc plated yellow b18.2.1900
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 35/16-18 x 3 307a hex machine bolt zinc b18.2.13.5
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 1 3/45/16-18 x 1-3/4 307a hex machine bolt zinc b18.2.113
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 2 1/25/16-18 x 2-1/2 307a hex machine bolt zinc b18.2.14.5
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 25/16-18 x 2 307a hex machine bolt zinc b18.2.11.13
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/45/16-18 x 1-1/4 307a hex machine bolt zinc b18.2.120
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 1 1/25/16-18 x 1-1/2 307a hex machine bolt zinc b18.2.16.4
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 2 3/45/16-18 x 2-3/4 307a hex machine bolt zinc b18.2.13
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 65/16-18 x 6 307a hex machine bolt zinc b18.2.12.4
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 4 1/25/16-18 x 4-1/2 307a hex machine bolt zinc b18.2.11.6
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 55/16-18 x 5 307a hex machine bolt zinc b18.2.144.4
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 45/16-18 x 4 307a hex machine bolt zinc b18.2.11.8
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NBSILHex Machine BoltGrade AZinc/Clear5/16-18 x 3 1/25/16-18 x 3-1/2 307a hex machine bolt zinc b18.2.17.2
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JET FITTINGCAHex Machine BoltGrade AZinc/Black5/16-18 x 3/4bolt hex 5/16-18x3/4 steel a307 zinc plated black b18.2.1200
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JET FITTINGCAHex Machine BoltSteelZinc/Black5/16-18 x 1bolt hex 5/16-18x1 steel zinc plated black b18.2.1300
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-18 x 1 5/8bolt hex 5/1618x1-5/8 grade 5 steel zinc plated b18.2.1785
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JET FITTINGCAHex Machine BoltSteelZinc/Clear5/16-18 x 1 3/4bolt hex 5/16-18x1-3/4 steel zinc b18.2.1581
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 7/8bolt hex 5/1624x7/8 stainless steel b18.2.1105
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 1 1/4bolt hex 5/1624x1-1/4 stainless steel b18.2.1100
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JET FITTINGCAHex Machine BoltGrade 5Zinc/Clear5/16-24 x 1 1/4bolt hex 5/1624x1-1/4 grade 5 steel zinc plated b18.2.1600
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JET FITTINGCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 1 1/2bolt hex 5/1624x1-1/2 stainless steel b18.2.1227
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 2 3/4a307a h/b hdg b18.2.12,220
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 1 1/4a307a h/b hdg b18.2.11,790
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 1a307a h/b hdg b18.2.11,667
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 4a307a h/b hdg b18.2.1138
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 2 1/4a307a h/b hdg b18.2.1135
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 7a307a h/b hdg b18.2.133
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 6a307a h/b hdg b18.2.111
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 4a307a h/b hdg b18.2.1351
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 2a307a h/b hdg b18.2.1178
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THRDFASTFLHex Machine BoltGrade AGalvanized5/16-18 x 4a307a h/b hdg b18.2.116
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THRDFASTTNHex Machine BoltGrade AGalvanized5/16-18 x 1a307a h/b hdg b18.2.1689
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 5 1/25/16-18 x 5-1/2 hex bolt grade 8 domestic b18.2.122
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 35/16-18 x 3 gr. 8 hex bolt domestic b18.2.147
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 2 1/45/16-18 x 2 1/4 hex bolt grade 8 domestic b18.2.1401
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 2 3/45/16-18 x 2 3/4 gr. 8 hex bolt domestic b18.2.1349
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All SizeTXHex Machine BoltGrade 5Plain5/16-24 x 3 1/45/16-24 x 3 1/4 gr. 5 hex bolt b18.2.1450
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All SizeTXHex Machine BoltGrade 5Plain5/16-18 x 6 1/25/16-18 x 6 1/2 gr. 5 hex bolt b18.2.173
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All SizeTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 1 1/45/16-24 x 1 1/4 hex bolt s/s b18.2.1385
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 25/16-18 x 2 hex bolt grade 8 domestic b18.2.148
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 5/85/16-18 x 5/8 gr. 8 hex bolt b18.2.1100
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All SizeTXHex Machine BoltGrade 5Plain5/16-18 x 5 1/25/16-18 x 5 1/2 gr. 5 hex bolt b18.2.1194
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All SizeTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 65/16-18 x 6 hex bolt s/s b18.2.18
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 3 1/25/16-18 x 3 1/2 gr. 8 hex bolt domestic b18.2.191
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All SizeTXHex Machine BoltGrade 5Plain5/16-18 x 3 1/85/16-18 x 3 1/2 gr. 5 hex bolt 1/8 hole drilled in head b18.2.1147
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All SizeTXHex Machine BoltGrade 5Plain5/16-24 x 1 3/45/16-24 x 1 3/4 gr. 5 hex bolt b18.2.1350
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 2 1/25/16-18 x 2 1/2 gr. 8 hex bolt domestic b18.2.11,792
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All SizeTXHex Machine BoltSteelGalvanized5/16-18 x 15/16-18 x 1 hex bolt galv b18.2.145
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All SizeTXHex Machine BoltGrade 5Plain5/16-24 x 35/16-24 x 3 gr. 5 hex bolt b18.2.1382
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All SizeTXHex Machine BoltGrade 8Plain5/16-24 x 3 1/25/16-24 x 3 1/2 gr. 8 hex bolt b18.2.1344
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All SizeTXHex Machine BoltGrade 8Plain5/16-24 x 3 3/45/16-24 x 3 3/4 gr. 8 hex bolt b18.2.149
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All SizeTXHex Machine BoltGrade 8Plain5/16-18 x 1/25/16-18 x 1/2 gr. 8 hex bolt domestic b18.2.1140
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