FCH Member Advertisement
FCH News
3 1/2 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 .
111 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 | 3/4-10 x 3 1/2 | square bolt gr. 2 | 2 |
|
| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 3 1/2 | square | 2 |
|
| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 3 1/2 | square | 25 |
|
| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 3 1/2 | square bolt gr. 8 | 2 |
|
| Weaver | WA | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 gr5 square hd bolt plain | 14 |
|
| Future Fastener | TX | Square Head Bolt | Steel | Galvanized | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 sq hd machine bolt galv. | 300 |
|
| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 3 1/2 | square | 27 |
|
| Jackson | MS | Square Head Bolt | Grade 2 | Zinc/Clear | 3/4-10 x 3 1/2 | nc sq bolt | 366 |
|
| MESAFAST | CA | Square Head Bolt | Steel | Plain | 5/8-11 x 3 1/2 | square hd bolt 307 | 75.0 |
|
| YANKEE | NH | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square hd bolt | 120 |
|
| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 square hd bolt | 17 |
|
| Hayes | CA | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square hd bolt zinc | 48 |
|
| Hayes | CA | Square Head Bolt | Steel | Galvanized | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square hd bolt hdg | 5 |
|
| CIF | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 3 1/2 | 1-8x3 1/2 square head machine bolt 18-8 s/s steel (3) (3) (3) () | 3 |
|
| CIF | IL | Square Head Bolt | Grade 2 | Plain | 1-8 x 3 1/2 | 1-8x3 1/2 square head machine bolt grade 2 plain (58) (58) (58) () | 58 |
|
| CIF | IL | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 3 1/2 | 3/4-10x3 1/2 square head machine bolt grade 5 plain (1043) (1043) (1043) () | 1043 |
|
| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 3 1/2 | a307 gra square hd m/b low carb zp | 600 |
|
| ASMC | IL | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | (pt) coarse a307 gra square hd m/b low carb | 450 |
|
| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 1/2-13 x 3 1/2 | a307 gra square hd m/b low carb zp | 25 |
|
| ASMC | IL | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 1/2 | (pt) coarse a307 gra square hd m/b low carb | 23 |
|
| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 3 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 350 |
|
| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 3/8-16 x 3 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 250 |
|
| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 3/4-10 x 3 1/2 | a307 gra square hd m/b low carb zp b18.2.1 | 60 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 bolt square machine plain | 300 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | bolt square machine | 6 |
|
| Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | square m/b 1 tl poor m/b 1 tl poor | 840 |
|
| Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | square m/b f/t | 559 |
|
| Liberty | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square m/b machine bolt | 25 |
|
| Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | square m/b machine bolt | 449 |
|
| Liberty | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/2 | square m/b 18-8s/s m/b 18-8s/s | 23 |
|
| Liberty | IL | Square Head Bolt | Grade 5 | Plain | 7/8-9 x 3 1/2 | square m/b machine bolt | 18 |
|
| Liberty | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 3 1/2 | square hd m/b 7/8 tl 7/8 tl | 500 |
|
| Liberty | IL | Square Head Bolt | Steel | Zinc/Yellow | 1-8 x 3 1/2 | square m/b & machine bolt & | 50 |
|
| Liberty | IL | Square Head Bolt | Steel | Zinc/Yellow | 3/8-16 x 3 1/2 | square m/b & machine bolt & | 100 |
|
| Liberty | IL | Square Head Bolt | 316, 317, A4 Stainless | Plain | 3/4-10 x 3 1/2 | square m/b 316 stainless | 10 |
|
| Komar | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 square hd machine bolt zinc | 1100 |
|
| Komar | AR | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square m/b | 70 |
|
| American | NY | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | square bolt | 150 |
|
| American | NY | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | square m/b zp | 50 |
|
| American | NY | Square Head Bolt | Grade 5 | Plain | 5/8-18 x 3 1/2 | square m/b | 300 |
|
| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 3 1/2 | square bolt | 4184 |
|
| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | square bolt | 317 |
|
| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 1/2 | square bolt | 522 |
|
| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 3 1/2 | square bolt | 506 |
|
| METRO IND | OH | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | square hd bolt | 8 |
|
| METRO IND | OH | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 3 1/2 | square hd bolt | 25 |
|
| XL Screw | GA | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | square m/b std thrd fsb astm a307 | 210 |
|
| XL Screw | GA | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | square m/b std thrd fsb astm a307 | 300 |
|
| XL Screw | GA | Square Head Bolt | Steel | Plain | 5/8-11 x 3 1/2 | square m/b std thrd fsb astm a307 | 120 |
|
| XL Screw | GA | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square m/b std thrd fsb astm a307 | 80 |
|
| XL Screw | GA | Square Head Bolt | Steel | Plain | 1-8 x 3 1/2 | square m/b std thrd fsb astm a307 | 40 |
|
| XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | square hd m/b std thrd fsb astm a307 zp | 120 |
|
| XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 3/4-10 x 3 1/2 | square hd m/b std thrd fsb astm a307 zp | 80 |
|
| SWACO | OH | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 a307 gr a square hd bolt p | 7 |
|
| SWACO | OH | Square Head Bolt | Grade A | Plain | 1/2-13 x 3 1/2 | 1/2-13x3 1/2 a307 gr a square hd bolt p | 7 |
|
| SWACO | OH | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3 1/2 a307 gr a square hd bolt | 320 |
|
| Komar | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | square hd m/b | 1100 |
|
| IPC | VA | Square Head Bolt | Grade A | Zinc/Yellow | 3/4-10 x 3 1/2 | 3/4-10x3 1/2 square hd mach bolt a307 steel zinc yellow | 975 |
|
| BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 1000 |
|
| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 7/16-14 x 3 1/2 | bolt & c/s square boltsquare b18.2.1 | 1000 |
|
| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 3 1/2 | bolt & c/s square boltsquare b18.2.1 | 1318 |
|
| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 7/16-20 x 3 1/2 | bolt & c/s square boltsquare b18.2.1 | 1000 |
|
| BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 x 3 1/2 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 500 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 a307 gr a square hd bolt p 747248 b18.2.1 | 82 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3 1/2 a307 gr a square hd bolt 747061 b18.2.1 | 320 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 1/2-13 x 3 1/2 | 1/2-13x3 1/2 a307 gr a square hd bolt p 747182 b18.2.1 | 7 |
|
| Delta | TX | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/2 | square hd bolt plain 7/8-9x3 1/2 | 55 |
|
| FasSpcMfg | FL | Square Head Bolt | 316, 317, A4 Stainless | Plain | 1/2-13 x 3 1/2 | square bolt 316 stainless | 2 |
|
| ISSCO | MO | Square Head Bolt | Grade 5 | Zinc/Clear | 3/4-10 x 3 1/2 | 926 |
| |
| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | 1600 |
| |
| Cascade | OR | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square m/b b18.2.1 | 57 |
|
| SIS | AZ | Square Head Bolt | Steel | Zinc/Yellow | 3/8-16 x 3 1/2 | 3/8-16x3-1/2 square head machine bolt steel zinc yellow per spec tt-5 | 129600 |
|
| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square bolts plain b18.2.1 | 8 |
|
| B & K FAST | PA | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9 x 3 1/2 square bolts plain b18.2.1 | 523 |
|
| B & K FAST | PA | Square Head Bolt | Grade 8 | Plain | 1-8 x 3 1/2 | 1-8 x 3 1/2 square bolts gr 8 plain b18.2.1 | 2 |
|
| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1-8 x 3 1/2 | 1-8 x 3 1/2 square bolts plain b18.2.1 | 305 |
|
| B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 square bolts plain b18.2.1 | 323 |
|
| Kanebridge | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16x3 1/2 square machine bolt plain | 5,000 |
|
| Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13x3 1/2 square machine bolt plain | 2.500 |
|
| Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 square machine bolt plain | 1.875 |
|
| Kanebridge | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10x3 1/2 square machine bolt plain | 1.500 |
|
| Kanebridge | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9x3 1/2 square machine bolt plain | 0.750 |
|
| BHAM | AL | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | square hd mach bolt zn | 40 |
|
| Bostwick | IN | Square Head Bolt | Grade 8 | Plain | 1 1/4-7 x 3 1/2 | 1 1/4-7 x 3 1/2 square hd bolt full thread gr 8 b18.2.1 | 2 |
|
| ZAL INDUS | CA | Square Head Bolt | Steel | Plain | 1/4-20 x 3 1/2 | 1/4-20 x 3 1/2 sq hd mach bolt | 2,500 |
|
| ZAL INDUS | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 sq hd mach bolt | 200 |
|
| Lippin | CA | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 3 1/2 | square head bolt zinc plated | 165 |
|
| Lippin | CA | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square head bolt plain | 44 |
|
| BAYFASTCO | FL | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square head bolt | 100 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3-1/2 (pt) square bolt steel a307 plain b18.2.1 | 500 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 1/2-13 x 3 1/2 | 1/2-13x3-1/2 (pt) square bolt steel a307 plain b18.2.1 | 54 |
|
| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 1/2 | 5/8-11x3-1/2 (pt) square bolt steel a307 plain b18.2.1 | 95 |
|
| SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3 1/2 | square hd bolt | - |
|
| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | square hd bolt | 38 |
|
| ASFCORP | MI | Square Head Bolt | Grade A | Zinc/Clear | 3/8-16 x 3 1/2 | 3/8-16 x 3 1/2 sq hd blt a307 gr a tri zn fe/zn 5an | 340 |
|
| THRDFAST | FL | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | square hd bolt b18.2.1 | 145 |
|
| THRDFAST | FL | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | square hd bolt b18.2.1 | 8 |
|
| KBS | TN | Square Head Bolt | Grade 8 | Plain | 1-8 x 3 1/2 | 1-8 x 3 1/2 square mach bolt gr-8 b18.2.1 | 20 |
|
| KBS | TN | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 square mach.bolt gr-5 b18.2.1 | 3 |
|
| KBS | TN | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 square mach bolt gr-8 b18.2.1 | 89 |
|
| FMP | MA | Square Head Bolt | Steel | Plain | 1/4-20 x 3 1/2 | square bolt | 750 |
|
| FMP | MA | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square bolt | 1100 |
|
| Valley Nu | WA | Square Head Bolt | Steel | Plain | 1/4-20 x 3 1/2 | nc square bolt pl | 11 |
|
| Valley Nu | WA | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | nc square hd bolt | 5 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | square m/b | 5,000 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 3 1/2 | square fulthr m/b | 1,750 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/8-11 x 3 1/2 | square m/b | 1,100 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | square m/b | 200 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 1/4-20 x 3 1/2 | square m/b | 600 |
|
| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/2 | square m/b | 142 |
|
| QFS | MI | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 3 1/2 | Square head set screw cup point STAINLESS STEEL | 175 |
|
Trademarks identified with products listed on this website are the property of their respective owners, not FastenersClearingHouse.com.
