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3 1/4 inch length 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
56 results, (click on any line for more information)
| Buy Hex Bolts from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| BHAM | AL | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 3 1/4 | 1/2-13x3 1/4 hex bolt a307 hdg b18.2.1 | 75 |
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| BHAM | AL | Hex Machine Bolt | Steel | Plain | 1-8 x 3 1/4 | 1-8x3 1/4 a490 hvy hex bolt b18.2.1 | 113 |
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| BHAM | AL | Hex Machine Bolt | Steel | Plain | 5/8-11 x 3 1/4 | 5/8-11x3 1/4 a325 hvy bolt dom. pln b18.2.1 | 90 |
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| BHAM | AL | Hex Machine Bolt | Steel | Plain | 1-8 x 3 1/4 | 1-8x3 1/4 a490 hvy hex bolt dom. ty 3 b18.2.1 | 43 |
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| BHAM | AL | Hex Machine Bolt | Steel | Plain | 1-8 x 3 1/4 | 1-8x3 1/4 a490 hvy hex bolt ft b18.2.1 | 4 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1-8 x 3 1/4 | 1-8 x 3 1/4 hex bolt stl znc b18.2.1 | 7 |
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| Ababa | CA | Hex Machine Bolt | Steel | Plain | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 hex bolt stl pln b18.2.1 | 20 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 hex bolt stl znc b18.2.1 | 305 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/8-11 x 3 1/4 | 5/8-11 x 3 1/4 hex bolt stl znc b18.2.1 | 45 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/4-10 x 3 1/4 | 3/4-10 x 3 1/4 hex bolt stl znc b18.2.1 | 110 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/16-18 x 3 1/4 | 5/16-18 x 3 1/4 hex bolt stl znc b18.2.1 | 112 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 3/4-10 x 3 1/4 | 3/4-10x3-1/4 hex hd bolt a307 stl zc b18.2.1 () () () | 104 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 1/4-20 x 3 1/4 | 1/4-20x3-1/4 hex hd bolt a307 stl zc b18.2.1 () () () | 437 |
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| GLF | OH | Hex Machine Bolt | Grade A | Plain | 3/4-10 x 3 1/4 | 3/4-10x3-1/4 hex hd bolt a307 stl pln b18.2.1 () () () | 347 |
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| GLF | OH | Hex Machine Bolt | Grade B7 | Plain | 3/4-10 x 3 1/4 | 3/4-10x3-1/4 fin hex hd bolt b-7 stl pln b18.2.1 () () () | 50 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 hex bolt stl znc b18.2.1 | 150 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 hex bolt stl znc b18.2.1 | 50 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/4-10 x 3 1/4 | 3/4-10 x 3 1/4 hex bolt stl znc b18.2.1 | 46 |
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| Alma Bolt | MI | Hex Machine Bolt | Grade 2 | Zinc/Clear | 3/4-10 x 3 1/4 | 3/4-10 x 3 1/4 hex hd blt gr2 zp b18.2.1 | 575 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 1/4-20 x 3 1/4 | 1/4-20x3 1/4 hex bolt a307 gr a zn 494014 b18.2.1 | 1550 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 3 1/4 | 5/16-18x3 1/4 hex bolt a307 gr a hdg 495264 b18.2.1 | 180 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 3/8-16 x 3 1/4 | 3/8-16x3 1/4 hex bolt a307 gr a zn 494056 b18.2.1 | 50 |
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| QFC | TX | Hex Machine Bolt | Grade 5 | Galvanized | 3/8 x 3 1/4 | .375x3.25 grade 5 hdg hex bolt nut&lw b18.2.1 | 103 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 2 | Plain | 5/818 x 3 1/4 | bolt hex 5/818x3-1/4 grade 2 b18.2.1 | 50 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 5/16-18 x 3 1/4 | bolt hex 5/1618x3-1/4 a307 steel zinc plated b18.2.1 | 103 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 3/8-16 x 3 1/4 | bolt hex 3/816x3-1/4 a307 steel zinc plated b18.2.1 | 1275 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 8 | Zinc/Yellow | 1/4-20 x 3 1/4 | bolt hex 1/420x3-1/4 grade 8 steel zinc plated yellow b18.2.1 | 250 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 3 1/4 | 5/16-18x3 1/4 (pt) bolts hex bolts a307 grade a hex bolt hdg (inch) b18.2.1 | 280 |
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| NBS | IL | Hex Machine Bolt | Grade 5 | Zinc/Yellow | 1/2-13 x 3 1/4 | 1/2-13 x 3-1/4 gr.5 hex machine bolt zinc yellow b18.2.1 | 14 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 5 | Zinc/Yellow | 5/8-11 x 3 1/4 | bolt hex 5/8-11x3-1/4 grade 5 steel zinc plated yellow b18.2.1 | 50 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 3 1/4 | bolt hex 1/420x3-1/4 grade 2 steel zinc plated b18.2.1 | 106 |
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| JET FITTING | CA | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/4 | bolt hex 1/213x3-1/4 stainless steel b18.2.1 | 118 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 5/8-11 x 3 1/4 | a307a h/b hdg b18.2.1 | 579 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 1-8 x 3 1/4 | a307a h/b hdg b18.2.1 | 46 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 3 1/4 | a307a h/b hdg b18.2.1 | 15 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 5/8-11 x 3 1/4 | a307a h/b hdg b18.2.1 | 10 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 3 1/4 | a307a h/b hdg b18.2.1 | 6 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 3 1/4 | a307a h/b hdg b18.2.1 | 104 |
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| THRDFAST | OK | Hex Machine Bolt | Grade A | Galvanized | 5/8-11 x 3 1/4 | a307a h/b hdg b18.2.1 | 22 |
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| THRDFAST | OK | Hex Machine Bolt | Grade A | Galvanized | 3/4-10 x 3 1/4 | a307a h/b hdg b18.2.1 | 5 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4-10 x 3 1/4 | 3/4-10 x 3 1/4 hex bolt s/s b18.2.1 | 10 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 5/16-24 x 3 1/4 | 5/16-24 x 3 1/4 gr. 5 hex bolt b18.2.1 | 450 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3 1/4 hex bolt s/s b18.2.1 | 278 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 7/16-14 x 3 1/4 | 7/16-14 x 3 1/4 gr. 5 hex bolt b18.2.1 | 495 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/4 | 5/8-11 x 3 1/4 hex bolt s/s b18.2.1 | 46 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 3/8-24 x 3 1/4 | 3/8-24 x 3 1/4 gr. 8 hex bolt plain b18.2.1 | 44 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 3 1/4 | 3/8-16 x 3 1/4 hex bolt s/s b18.2.1 | 20 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 1 1/4-12 x 3 1/4 | 1 1/4-12 x 3 1/4 gr. 8 hex bolt plain b18.2.1 | 52 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 1/4-20 x 3 1/4 | 1/4-20 x 3 1/4 gr. 5 hex bolt b18.2.1 | 105 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 3/4-16 x 3 1/4 | 3/4-16 x 3 1/4 gr. 5 hex bolt b18.2.1 | 23 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 hex bolt s/s b18.2.1 | 82 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 3 1/4 | 1-8 x 3 1/4 hex bolt s/s b18.2.1 | 3 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 9/16-18 x 3 1/4 | 9/16-18 x 3 1/4 gr. 5 hex bolt b18.2.1 | 125 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Zinc/Clear | 5/8-11 x 3 1/4 | 5/8-11 x 3 1/4 gr. 5 hex bolt zinc domestic b18.2.1 | 150 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/8-9 x 3 1/4 | 7/8-9 x 3 1/4 hex bolt s/s b18.2.1 | 3 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 3/4-10 x 3 1/4 | 3/4-10 x 3-1/4 grade 8 hex bolt domestic plain b18.2.1 | 36 |
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