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1 1/4 inch length Square Head Bolts
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 .
84 results, (click on any line for more information)
| Buy Square Head Bolts from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 1/4 | square bolt gr. 2 | 400 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 1/4 | square bolt gr. 2 | 2445 |
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| Century | FL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 square hd. bolt (STEEL ZINC PLT) (STEEL ZINC PLT) | 1800 |
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| Hayes | CA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | 1/2-13 x 1 1/4 square hd bolt pln | 94 |
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| Hayes | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 square hd bolt pln | 7 |
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| Hayes | CA | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 square hd bolt 18-8ss | 44 |
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| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 a307 gra square hd machine bolt low carb zp | 480 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 3/8-16 x 1 1/4 | a307 gra square hd m/b low carb hdg | 250 |
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| ASMC | IL | Square Head Bolt | Grade A | Plain | 1/2-13 x 1 1/4 | (ft) coarse a307 gra square hd m/b low carb | 67 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 1 1/4 | a307 gra square hd m/b low carb hdg | 775 |
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| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 1/4-20 x 1 1/4 | a307 gra square hd m/b low carb zp | 850 |
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| ASMC | IL | Square Head Bolt | Grade A | Plain | 1/4-20 x 1 1/4 | (pt) coarse a307 gra square hd m/b low carb | 1,500 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 1 1/4 | a307 gra square hd m/b low carb hdg b18.2.1 | 1,325 |
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| ASMC | IL | Square Head Bolt | Grade A | Plain | 5/8-11 x 1 1/4 | (ft) coarse a307 gra square hd m/b low carb | 165 |
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| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 1 1/4 | a307 gra square hd m/b low carb zp | 565 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/2-13 x 1 1/4 | 1/2-13x1 1/4 a307 gra square hd machine bolt low carb hdg b18.2.1 | 450 |
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| Endries | WI | Square Head Bolt | Steel | Plain | 7/16-14 x 1 1/4 | 7/16-14x1-1/4 square head machine bolt plain | 834 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | bolt square machine | 540 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/8-11 x 1 1/4 | bolt square machine | 215 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | bolt square machine | 4000 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 1 1/4 | bolt square machine | 250 |
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| Century | NY | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 square hd. bolt steel zinc plt | 1800 |
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| Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 1/4 | square m/b machine bolt | 200 |
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| Liberty | IL | Square Head Bolt | Steel | Galvanized | 1/2-13 x 1 1/4 | square bolt | 50 |
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| Future Fastener | TX | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 square head mch bolt (hdg) | 1000 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/4 | square m/b | 10000 |
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| American | NY | Square Head Bolt | Steel | Plain | 7/8-9 x 1 1/4 | square m/b | 100 |
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| American | NY | Square Head Bolt | Steel | Plain | 3/4-10 x 1 1/4 | square machine blt | 100 |
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| American | NY | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 1/4 | 3/8-16 x 1-1/4 square machine bolt zinc plate | 300 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 1/4 | square bolt | 914 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 1/4 | square bolt | 633 |
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| Alma Bolt | MI | Square Head Bolt | Steel | Galvanized | 1/2-13 x 1 1/4 | hdg sq mach bolt | 1434 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 1 1/4 | 1/2-13 x 1 1/4 zinc plated square head bolt grade 2 | 2524 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/4 | f/t square hd m/b astm a307 | 1,800 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | f/t square hd m/b astm a307 | 1,100 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | f/t square hd m/b astm a307 | 700 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | square m/b std thrd fsb astm a307 | 1,100 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | f/t square hd m/b astm a307 | 420 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/4 | square m/b std thrd fsb astm a307 | 1,800 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | square m/b std thrd fsb astm a307 | 700 |
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| XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 1/4 | f/t square hd m/b astm a307 zp | 700 |
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| XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | f/t square hd m/b astm a307 zp | 1,200 |
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| XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | square hd m/b std thrd fsb astm a307 zp | 1,200 |
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| NutsBolts | NE | Square Head Bolt | Steel | Plain | 5/16 x 1 1/4 | 5/16 x 1 1/4 sq hd bolt | 59 |
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| IRF | NJ | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 sq head machine bolt stl zinc rohs 500149a00 | 600 |
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| IPC | VA | Square Head Bolt | Grade A | Zinc/Yellow | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 square hd mach bolt a307 steel zinc yellow | 707 |
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| IPC | VA | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 square hd mach bolt 18-8 ss | 250 |
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| Northern | MN | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | square hd mach bolt | 441 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 1 1/4 | bolt & c/s square boltsquare b18.2.1 | 14100 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 1/2-13 x 1 1/4 | bolt & c/s square boltsquare b18.2.1 | 11819 |
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| WDMB | IA | Square Head Bolt | Steel | Plain | 3/8 x 1 1/4 | key-mach-sqr-b-under-st-(pl)-3/8x1 1/4 (W010) | 647 |
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| WDMB | IA | Square Head Bolt | Steel | Plain | 7/16 x 1 1/4 | e/key mach sqr st (pl) 7/16x1 1/4 drw (W0L0) | 773 |
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| MtrcSpec | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 square hd bolt | stock |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 1/4 | 720 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 square bolts plain b18.2.1 | 6 |
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| B & K FAST | PA | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 square bolts zinc b18.2.1 | 854 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | 1/2-13 x 1 1/4 square bolts plain b18.2.1 | 2788 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | 5/8-11 x 1 1/4 square bolts plain b18.2.1 | 1852 |
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| IRF | NJ | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 sq head machine bolt stl zinc rohs 500149a00 | 1,400 |
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| Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/4 | 1/4-20x1 1/4 square machine bolt plain | 25,000 |
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| Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 square machine bolt plain | 17.500 |
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| Kanebridge | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16x1 1/4 square machine bolt plain | 12.500 |
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| Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | 1/2-13x1 1/4 square machine bolt plain | 6.250 |
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| OSSCO | RI | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | 5/8-11x1 1/4 square hd mach bolt b18.2.1 | 59 |
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| ZAL INDUS | CA | Square Head Bolt | Grade 2 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 sq hd mach bolt grade 2 pltd | 2,050 |
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| ZAL INDUS | CA | Square H ead Bolt | Steel | Plain | 5/8-11 x 1 1/4 | 5/8-11 x 1 1/4 sq hd mach bolt | 450 |
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| ZAL INDUS | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 sq hd mach bolt | 299 |
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| ScrewsInc | OH | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 500 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 1 1/4 | square hd bolt | - |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 7/16-14 x 1 1/4 | square hd bolt | - |
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| SRF | AL | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 1 1/4 | square hd bolt | - |
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| OBRIEN | OH | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | square hd bolt | 275 |
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| THRDFAST | FL | Square Head Bolt | Steel | Galvanized | 1/2-13 x 1 1/4 | square hd bolt hdg b18.2.1 | 112 |
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| THRDFAST | OK | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | square hd bolt b18.2.1 | 400 |
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| THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 1/2-13 x 1 1/4 | square hd bolt hdg b18.2.1 | 28 |
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| WSB | KY | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | blt sqr sbrz (pl) 3/8-16x1 1/4 b18.2.1 | 682 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 1 1/4 | square m/b | 10,000 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/8-11 x 1 1/4 | square m/b | 1,000 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | square m/b | 900 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 1 1/4 | square m/b | 550 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | square m/b | 4,500 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | square m/b | 5,000 |
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| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 1/4 | square m/b | 5,000 |
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| QFS | MI | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 1 1/4 | Square head set screw cup point STAINLESS STEEL | 17 |
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