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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
114 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 8 | Zinc/Yellow | 7/8-9 x 4 | 7/8-9x4 hex bolt gr. 8 yell. zinc dom. b18.2.1 | 270 |
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| BHAM | AL | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 4 | 1/2-13x4 hex bolt a307 hdg b18.2.1 | 15 |
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| BHAM | AL | Hex Machine Bolt | Steel | Galvanized | 1 3/8-6 x 4 | 1 3/8-6x4 a325 hvy bolt dom. mechgalv b18.2.1 | 6 |
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| BHAM | AL | Hex Machine Bolt | Steel | Galvanized | 7/8-9 x 4 | 7/8-9x4 a325 hvy bolt dom. hdg b18.2.1 | 33 |
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| BHAM | AL | Hex Machine Bolt | Steel | Plain | 1/4 x 4 | 1/4x4 hex thread hs bolt b18.2.1 | 44 |
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| BHAM | AL | Hex Machine Bolt | ASTM A449 | Plain | 3/4-10 x 4 | 3/4-10x4 hvy hex bolt a449 full thread b18.2.1 | 4 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 hex bolt stl znc b18.2.1 | 1734 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 5/16-18 x 4 | 5/16-18 x 4 hex bolt stl hdg b18.2.1 | 105 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 hex bolt stl znc b18.2.1 | 225 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 3/8-16 x 4 | 3/8-16 x 4 hex bolt stl hdg b18.2.1 | 382 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 hex bolt stl znc b18.2.1 | 309 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 1/2-13 x 4 | 1/2-13 x 4 hex bolt stl hdg b18.2.1 | 262 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/2-13 x 4 | 1/2-13 x 4 hex bolt stl znc b18.2.1 | 330 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 9/16-12 x 4 | 9/16-12 x 4 hex bolt stl znc b18.2.1 | 11 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 5/8-11 x 4 | 5/8-11 x 4 hex bolt stl hdg b18.2.1 | 122 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/8-11 x 4 | 5/8-11 x 4 hex bolt stl znc b18.2.1 | 171 |
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| Ababa | CA | Hex Machine Bolt | Steel | Plain | 3/4-10 x 4 | 3/4-10 x 4 hex bolt stl pln b18.2.1 | 4 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/4-10 x 4 | 3/4-10 x 4 hex bolt stl znc b18.2.1 | 78 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 7/8-9 x 4 | 7/8-9 x 4 hex bolt stl znc b18.2.1 | 145 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 7/16-14 x 4 | 7/16-14 x 4 hex bolt stl znc b18.2.1 | 275 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 3/4-10 x 4 | 3/4-10 x 4 hex bolt stl hdg b18.2.1 | 53 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1-8 x 4 | 1-8 x 4 hex bolt stl znc b18.2.1 | 12 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1 1/8-7 x 4 | 1 1/8-7 x 4 hex bolt stl znc b18.2.1 | 11 |
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| GLF | OH | Hex Machine Bolt | Grade A | Plain | 3/4-10 x 4 | 3/4-10x4 hex hd bolt a307 stl pln b18.2.1 () () () | 505 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 3/4-10 x 4 | 3/4-10x4 hex hd bolt a307 stl zc b18.2.1 () () () | 679 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 3/8-16 x 4 | 3/8-16x4 hex hd bolt a307 stl zc b18.2.1 () () () | 49 |
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| GLF | OH | Hex Machine Bolt | Grade A | Plain | 3/8-16 x 4 | 3/8-16x4 hex hd bolt a307 stl pln b18.2.1 () () () | 164 |
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| GLF | OH | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 4 | 3/8-16x4 hex hd bolt a307 hdg b18.2.1 () () () | 180 |
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| GLF | OH | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 4 | 1/2-13x4 hex hd bolt a307 stl hdg b18.2.1 () () () | 120 |
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| GLF | OH | Hex Machine Bolt | Grade A | Plain | 7/8-9 x 4 | 7/8-9x4 hex hd bolt a307 stl pln b18.2.1 () () () | 54 |
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| GLF | OH | Hex Machine Bolt | Grade A | Plain | 5/8-11 x 4 | 5/8-11x4 hex hd bolt a307 stl pln b18.2.1 () () () | 169 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 3/4-10 x 4 | 3/4-10x4 hex hd bolt a307 stl zp b18.2.1 () () () | 21 |
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| GLF | OH | Hex Machine Bolt | Grade B7 | Plain | 3/4-10 x 4 | 3/4-10x4 fin hex hd bolt b-7 stl pln b18.2.1 () () () | 50 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 5/8-11 x 4 | 5/8-11x4 hex hd bolt a307 stl zc b18.2.1 () () () | 296 |
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| GLF | OH | Hex Machine Bolt | Grade A | Galvanized | 1 1/2-6 x 4 | 1-1/2-6x4 hex hd bolt a307 stl hdg b18.2.1 () () () | 2 |
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| GLF | OH | Hex Machine Bolt | Grade A | Galvanized | 1 1/8-7 x 4 | 1-1/8-7x4 hex hd bolt a307 stl hdg b18.2.1 () () () | 15 |
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| GLF | OH | Hex Machine Bolt | Grade A | Zinc/Clear | 7/8-9 x 4 | 7/8-9x4 hex hd bolt a307 stl zc b18.2.1 () () () | 15 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 hex bolt stl znc b18.2.1 | 700 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 hex bolt stl znc b18.2.1 | 150 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 hex bolt stl znc b18.2.1 | 200 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 1/2-13 x 4 | 1/2-13 x 4 hex bolt stl hdg b18.2.1 | 50 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 1/2-13 x 4 | 1/2-13 x 4 hex bolt stl znc b18.2.1 | 100 |
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| Ababa | CA | Hex Machine Bolt | Steel | Galvanized | 5/8-11 x 4 | 5/8-11 x 4 hex bolt stl hdg b18.2.1 | 20 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 5/8-11 x 4 | 5/8-11 x 4 hex bolt stl znc b18.2.1 | 80 |
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| Ababa | CA | Hex Machine Bolt | Steel | Zinc/Clear | 3/4-10 x 4 | 3/4-10 x 4 hex bolt stl znc b18.2.1 | 30 |
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| SII | IN | Hex Machine Bolt | Grade A | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 astm a307 grade a zinc finish hex bolt b18.2.1 | 625 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 hex bolt a307 gr a zn 494017 b18.2.1 | 50 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 4 | 3/8-16x4 hex bolt a307 gr a hdg 495041 b18.2.1 | 224 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 7/16-14 x 4 | 7/16-14x4 hex bolt a307 gr a zn 494080 b18.2.1 | 25 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 1/4-20 x 4 | 1/4-20x4 hex bolt a307 gr a hdg 495012 b18.2.1 | 750 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 5/8-11 x 4 | 5/8-11x4 hex bolt a307 gr a zn 494125 b18.2.1 | 99 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 4 | 1/2-13x4 hex bolt a307 gr a hdg 495062 b18.2.1 | 85 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 5/16-18 x 4 | 5/16-18x4 hex bolt a307 gr a zn 494038 b18.2.1 | 25 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 3/4-10 x 4 | 3/4-10x4 hex bolt a307 gr a zn 494150 b18.2.1 | 15 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 3/8-16 x 4 | 3/8-16x4 hex bolt a307 gr a zn 494059 b18.2.1 | 100 |
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| Standard | MA | Hex Machine Bolt | Steel | Galvanized | 1/4-20 x 4 | 1/4-20x4 machine bolt galvanized b18.2.1 | 2393 |
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| Standard | MA | Hex Machine Bolt | Steel | Galvanized | 1-8 x 4 | 1-8x4 machine bolt galvanized b18.2.1 | 11 |
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| QFC | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 4 | 1-8x4 hex bolt f593d or c-domestic b18.2.1 | 16 |
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| QFC | TX | Hex Machine Bolt | Steel | Galvanized | 1/4-20 x 4 | 1/4-20x4 hex machine bolt galvanized b18.2.1 | 39 |
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| QFC | TX | Hex Machine Bolt | Grade A | Galvanized | 1-8 x 4 | 1-8x4 hex bolt a307 grade a steel hot dipped galvanized b18.2.1 | 6 |
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| QFC | TX | Hex Machine Bolt | Grade 5 | Galvanized | 1/2-13 x 4 | 1/2-13x4 | gr5 hdg hex bolt w/2-1/2 thread w/nut b18.2.1 | 628 |
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| QFC | TX | Hex Machine Bolt | Grade 5 | Galvanized | 1/2-13 x 4 | 1/2-13x4 | gr5 hdg hex bolt w/2-1/2 thread w/nut b18.2.1 | 786 |
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| B & K FAST | PA | Hex Machine Bolt | Grade B7 | Plain | 1 3/4-8 x 4 | 1 3/4-8 x 4 a193b7 hex bolts plain b18.2.1 | 17 |
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| OSSCO | RI | Hex Machine Bolt | Grade B | Plain | 1-8 x 4 | 1-8x4 a307 gr b bolt b18.2.1 | 34 |
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| OSSCO | RI | Hex Machine Bolt | Grade B | Plain | 7/8-9 x 4 | 7/8-9x4 a307 gr b bolt b18.2.1 | 29 |
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| QFC | TX | Hex Machine Bolt | Steel | Galvanized | 5/8-11 x 4 | 5/8-11 x 4 hex hd bolt a394 ty. 0 hdg b18.2.1 | 69 |
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| QFC | TX | Hex Machine Bolt | Grade B | Plain | 1/2 x 4 | 1/2 x 4 stainless hex machine bolt a193 class 1 grade b type-304 b18.2.1 | 1 |
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| QFC | TX | Hex Machine Bolt | Grade 8 | Plain | 7/8 x 4 | 7/8 x 4 ss hex machine bolt a193 cl1 gr8 type-304 100% domestic melt & mfg b18.2.1 | 1 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 5/16-18 x 4 | bolt hex 5/16-18x4 steel a307 zinc plated b18.2.1 | 25 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 4 | bolt hex 3/816x4 grade 2 steel zinc plated b18.2.1 | 115 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 5 | Zinc/Clear | 1/220 x 4 | bolt hex 1/220x4 grade 5 steel zinc plated b18.2.1 | 43 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Zinc/Clear | 1/4-20 x 4 | 1/4-20x4 (pt) hex bolt steel a307 zinc b18.2.1 | 50 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 4 | bolt hex 1/420x4 grade 2 steel zinc plated b18.2.1 | 70 |
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| JET FITTING | CA | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 4 | 1/2-13x4 (pt) bolts hex bolts a307 grade a hex bolt hdg (inch) b18.2.1 | 10 |
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| NBS | IL | Hex Machine Bolt | Grade A | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 307a hex machine bolt zinc b18.2.1 | 4 |
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| NBS | IL | Hex Machine Bolt | Grade A | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 307a hex machine bolt zinc b18.2.1 | 1.8 |
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| NBS | IL | Hex Machine Bolt | Grade A | Zinc/Clear | 3/8-16 x 4 | 3/8-16 x 4 307a hex machine bolt zinc b18.2.1 | 0.4 |
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| NBS | IL | Hex Machine Bolt | Grade A | Zinc/Clear | 7/16-14 x 4 | 7/16-14 x 4 307a hex machine bolt zinc b18.2.1 | 5 |
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| NBS | IL | Hex Machine Bolt | Grade A | Zinc/Clear | 5/8-11 x 4 | 5/8-11 x 4 307a hex machine bolt zinc b18.2.1 | 1.17 |
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| JET FITTING | CA | Hex Machine Bolt | Grade 2 | Zinc/Clear | 3/4-10 x 4 | bolt hex 3/410x4 grade 2 steel zinc plated b18.2.1 | 8 |
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| JET FITTING | CA | Hex Machine Bolt | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/4-16 x 4 | bolt hex 3/416x4 stainless steel b18.2.1 | 14 |
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| JET FITTING | CA | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/8-14 x 4 | bolt hex 7/814x4 stainless steel b18.2.1 | 5 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 4 | a307a h/b hdg b18.2.1 | 138 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 1-8 x 4 | a307a h/b hdg b18.2.1 | 40 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 1 1/4-7 x 4 | a307a h/b hdg b18.2.1 | 10 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 4 | a307a h/b hdg b18.2.1 | 351 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 1-8 x 4 | a307a h/b hdg b18.2.1 | 4 |
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| THRDFAST | FL | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 4 | a307a h/b hdg b18.2.1 | 16 |
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| THRDFAST | TN | Hex Machine Bolt | Grade A | Galvanized | 7/8-9 x 4 | a307a h/b hdg b18.2.1 | 50 |
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| THRDFAST | TN | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 4 | a307a h/b hdg b18.2.1 | 30 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 1 1/8-7 x 4 | a307a h/b hdg b18.2.1 | 10 |
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| KBS | TN | Hex Machine Bolt | Grade 2 | Galvanized | 3/8-16 x 4 | 3/8-16 x 4 hex bolt 307a orgr2 hdg! b18.2.1 | 850 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 3/8-16 x 4 | a307a h/b hdg b18.2.1 | 9000 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 1/2-13 x 4 | a307a h/b hdg b18.2.1 | 6690 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 5/8-11 x 4 | a307a h/b hdg b18.2.1 | 1800 |
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| THRDFAST | AL | Hex Machine Bolt | Grade A | Galvanized | 5/16-18 x 4 | a307a h/b hdg b18.2.1 | 5 |
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| THRDFAST | OK | Hex Machine Bolt | Grade A | Galvanized | 1-8 x 4 | a307a h/b hdg domestic b18.2.1 | 12 |
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| THRDFAST | OK | Hex Machine Bolt | Grade A | Galvanized | 1/4-20 x 4 | a307a h/b hdg b18.2.1 | 81 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 7/16-20 x 4 | 7/16-20 x 4 gr. 5 hex bolt b18.2.1 | 25 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 3/8-24 x 4 | 3/8-24 x 4 gr. 5 hex bolt b18.2.1 | 50 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 1/2-20 x 4 | 1/2-20 x 4 gr. 8 hex bolt plain b18.2.1 | 106 |
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| All Size | TX | Hex Machine Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/8-9 x 4 | 7/8-9 x 4 hex bolt s/s b18.2.1 | 11 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 1/4-28 x 4 | 1/4-28 x 4 gr. 8 hex bolt b18.2.1 | 451 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 1 1/8-7 x 4 | 1 1/8-7 x 4 gr. 8 hex bolt plain b18.2.1 | 14 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Zinc/Clear | 5/8-11 x 4 | 5/8-11 x 4 gr. 5 hex bolt zinc domestic b18.2.1 | 104 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Plain | 1 1/4-7 x 4 | 1 1/4-7 x 4 gr. 5 hex bolt b18.2.1 | 67 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 1 5/8-5 1/2 x 4 | 1 5/8-5 1/2 x 4 gr. 8 hex bolt plain b18.2.1 | 7 |
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| All Size | TX | Hex Machine Bolt | Grade B | Plain | 1 1/8-8 x 4 | 1 1/8-8 x 4 hex bolt gr. b7 plain b18.2.1 | 50 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Zinc/Clear | 3/4-10 x 4 | 3/4-10 x 4 gr. 5 hex bolt zinc domestic b18.2.1 | 1 |
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| All Size | TX | Hex Machine Bolt | Grade 5 | Zinc/Clear | 1-8 x 4 | 1-8 x 4 gr. 5 hex bolt zinc domestic b18.2.1 | 1 |
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| All Size | TX | Hex Machine Bolt | Grade 8 | Plain | 3/4-10 x 4 | 3/4-10 x 4 gr. 8 hex bolt w/ 1/8 hole drilled in head b18.2.1 | 71 |
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| Optimas | IL | Hex Machine Bolt | Steel | Plain | 3/4-10 x 4 | 3/4-10 x 4 asme b18.2.1 hex bolt | 893 |
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| Optimas | IL | Hex Machine Bolt | Steel | Plain | 3/4-10 x 4 | 3/4-10 x 4 asme b18.2.1 hex bolt | 893 |
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| Optimas | IL | Hex Machine Bolt | Steel | Plain | 3/4-10 x 4 | 3/4-10 x 4 asme b18.2.1 hex machine bolt | 893 |
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