Square Head Bolts
A low or medium carbon steel, externally threaded mechanical device 1/4" diameter or larger, with a trimmed square shaped external wrenching head.
Offers greater bearing surface for wrenching than hex head bolts.
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100372
- 1/2-13 X 2-1/2 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
- Weight: 0.16320
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 2 1/22 1/2 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100456
- 1/2-13 X 4 SQUARE HEAD BOLT A307 STEEL ZINC CLEAR
- Z
- 0
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 44 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | Zinc ClearZinc Clear |
| Standards: | A307A307 |
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100492
- 1/2-13 X 5-1/2 SQUARE HEAD BOLT STEEL PLAIN
- Z
- 0
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 5 1/25 1/2 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: |
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100513
- 1/2-13 X 7 SQUARE HEAD BOLT A307 STEEL ZINC CLEAR
- Z
- 0
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 77 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | Zinc ClearZinc Clear |
| Standards: | A307A307 |
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100732
- 1/4-20 X 3 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1/41/4 |
| Thread Pitch: | 2020 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100822
- 1/4-20 X 7 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1/41/4 |
| Thread Pitch: | 2020 |
| Length: | 77 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100876
- 1-1/2-6 X 6 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/21 1/2 |
| Thread Pitch: | 66 |
| Length: | 66 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100885
- 1-1/4-7 X 10 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100888
- 1-1/4-7 X 12 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1212 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100891
- 1-1/4-7 X 13 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1313 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100903
- 1-1/4-7 X 5 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 55 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100909
- 1-1/4-7 X 6 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 66 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100915
- 1-1/4-7 X 8 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 88 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100921
- 1-1/8-7 X 5 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/81 1/8 |
| Thread Pitch: | 77 |
| Length: | 55 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100933
- 1-8 X 10 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100936
- 1-8 X 12 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1212 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100939
- 1-8 X 15 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1515 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100966
- 1-8 X 4 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 44 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100984
- 1-8 X 6 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 66 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100987
- 1-8 X 7-1/4 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 7 1/47 1/4 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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100990
- 1-8 X 8 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 88 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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101233
- 3/4-10 X 6-1/2 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 6 1/26 1/2 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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101239
- 3/4-10 X 7 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 77 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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101713
- 5/16-18 X 1-3/4 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 5/165/16 |
| Thread Pitch: | 1818 |
| Length: | 1 3/41 3/4 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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148047
- 7/8-9 X 2-1/2 SQUARE HEAD BOLT GRADE 5 STEEL P LN
- Z
- 0
| Diameter: | 7/87/8 |
| Thread Pitch: | 99 |
| Length: | 2 1/22 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | |
| Standards: |
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148875
- 1/4-20 X 2 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
- Weight: 0.02960
| Diameter: | 1/41/4 |
| Thread Pitch: | 2020 |
| Length: | 22 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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148876
- 1/4-20 X 2-1/2 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
- Weight: 0.03660
| Diameter: | 1/41/4 |
| Thread Pitch: | 2020 |
| Length: | 2 1/22 1/2 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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148877
- 3/8-16 X 3 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
- Weight: 0.10300
| Diameter: | 3/83/8 |
| Thread Pitch: | 1616 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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149130
- 3/4-10 X 2-1/2 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 2 1/22 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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149131
- 3/4-10 X 1 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 11 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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149416
- 1-8 X 5 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
- Weight: 1.36860
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 55 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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149559
- 1-8 X 10 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
- Weight: 2.48000
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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149839
- 1-8 X 3-1/2 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
- Weight: 1.07000
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 3 1/23 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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150669
- 1/2-13 X 1-1/2 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
- Weight: 0.11040
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 1 1/21 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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151047
- 1-8 X 3-1/2 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
- Weight: 1.06300
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 3 1/23 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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151205
- 1-1/8-7 X 10 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
- Weight: 3.25000
| Diameter: | 1 1/81 1/8 |
| Thread Pitch: | 77 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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151206
- 1-1/8-7 X 11 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
- Weight: 3.51000
| Diameter: | 1 1/81 1/8 |
| Thread Pitch: | 77 |
| Length: | 1111 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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152471
- 3/4-10 X 3 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
- Weight: 0.47540
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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152967
- 3/4-10 X 10 A307 SQUARE HEAD BOLT PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 1010 |
| Material: | |
| Grade/Class: | |
| Finish: | |
| Standards: |
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153637
- 1-1/4-7 X 13 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1313 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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153638
- 1-1/2- 6 X 15 SQUARE HEAD BOLT WITH 5? THREAD LENGTH GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/21 1/2 |
| Thread Pitch: | 66 |
| Length: | 1515 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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153793
- 1-1/4-7 X 5-1/2 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 5 1/25 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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153794
- 1-1/4-7 X 6-1/2 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 6 1/26 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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153808
- M10-1.5 X 50 SQUARE HEAD (20MM X 20MM X 5MM THICK) BOLT W/SLOT A2 STAINLESS STEEL
- Z
- 0
| Diameter: | M10M10 |
| Thread Pitch: | 1.51.5 |
| Length: | 5050 |
| Material: | Stainless SteelStainless Steel |
| Grade/Class: | |
| Finish: | |
| Standards: |
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154768
- 3/4-10 X 4 SQUARE HEAD BOLT STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 44 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: |
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155501
- 1-1/4-7 X 10 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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156048
- 7/8-9 X 3 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 7/87/8 |
| Thread Pitch: | 99 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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156676
- 7/8-9 X 4 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 7/87/8 |
| Thread Pitch: | 99 |
| Length: | 44 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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156885
- 1/2-13 X 3 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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157123
- 1-1/4-7 X 5-1/2 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 5 1/25 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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158338
- 5/8-11 X 3 SQUARE HEAD BOLT 18-8 STAINLESS STEEL
- Z
- 0
| Diameter: | 5/85/8 |
| Thread Pitch: | 1111 |
| Length: | 33 |
| Material: | Stainless SteelStainless Steel |
| Grade/Class: | 18-818-8 |
| Finish: | |
| Standards: |
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158359
- 1-8 X 15 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1515 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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158415
- 2-4-1/2 X 30 SQUARE HEAD BOLT WITH 12? THREAD LENGTH L/C STEEL PLAIN
- Z
- 0
| Diameter: | 22 |
| Thread Pitch: | |
| Length: | 3030 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: |
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158620
- 1-1/4-7 X 10 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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159258
- 3/4-10 X 13 SQUARE HEAD BOLT WITH 6? THREAD LENGTH A307A STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 1313 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307AA307A |
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159963
- 3/4-10 X 3 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 3/43/4 |
| Thread Pitch: | 1010 |
| Length: | 33 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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160003
- 1-8 X 13 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
| Diameter: | 11 |
| Thread Pitch: | 88 |
| Length: | 1313 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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164305
- 7/8-9 X 14 SQUARE HEAD BOLT GRADE 5 STEEL PLAIN
- Z
- 0
| Diameter: | 7/87/8 |
| Thread Pitch: | 99 |
| Length: | 1414 |
| Material: | SteelSteel |
| Grade/Class: | Grade 5Grade 5 |
| Finish: | PlainPlain |
| Standards: |
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164780
- 1-1/8-7 X 10 SQUARE HEAD BOLT A307 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/81 1/8 |
| Thread Pitch: | 77 |
| Length: | 1010 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | PlainPlain |
| Standards: | A307A307 |
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165769
- 5/8-11 X 4-1/2 SQUARE HEAD BOLT A307 STEEL ZINC CLEAR
- Z
- 0
- Weight: 2.00000
| Diameter: | 5/85/8 |
| Thread Pitch: | 1111 |
| Length: | 4 1/24 1/2 |
| Material: | SteelSteel |
| Grade/Class: | |
| Finish: | Zinc ClearZinc Clear |
| Standards: | A307A307 |
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166600
- 1-1/4-7 X 14 SQUARE HEAD TAP BOLT GRADE 2 STEEL PLAIN
- Z
- 0
| Diameter: | 1 1/41 1/4 |
| Thread Pitch: | 77 |
| Length: | 1414 |
| Material: | SteelSteel |
| Grade/Class: | Grade 2Grade 2 |
| Finish: | PlainPlain |
| Standards: |
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167808
- 1/2-13 X 3-1/2 SQUARE HEAD BOLT GRADE 8 STEEL PLAIN
- Z
- 0
- Weight: 0.10000
| Diameter: | 1/21/2 |
| Thread Pitch: | 1313 |
| Length: | 3 1/23 1/2 |
| Material: | SteelSteel |
| Grade/Class: | Grade 8Grade 8 |
| Finish: | PlainPlain |
| Standards: |
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