Hobson UNC Square Neck Plough Bolt, 3/4 / 3-1/2
The price shown is for the pack.
Available
The Hobson UNC square neck plough bolt has a square neck under the head, which seats in a square hole to stop the bolt turning, and a UNC thread (Grade 9, plain). There are 53 items: 5/8" to 1-3/8", in lengths from 1-1/2" to 7". UNC means Unified National Coarse Thread and TPI means threads per inch.
The square neck seats in a square hole, so check the hole as well as the bolt diameter and length.
Where this product is used
- Fitting through a square hole so the square neck stops the bolt turning while the nut is tightened
- Replacing a plough bolt of the same thread form, diameter and length
Features
- 53 items: 5/8" to 1-3/8"
- Grade 9, plain
- Length 1-1/2" to 7"
- Sizes: 5/8" to 1-3/8"
Key specifications
| Specification | Detail |
|---|---|
| Brand | Hobson |
| Sizes | 5/8" to 1-3/8" |
| Lengths | 1-1/2" to 7" |
| Thread | UNC |
| Head | Square neck |
| Finish | Plain |
| Grade | Grade 9 |
Choosing the right option
Choose the thread form first: the screw and the nut or tapped hole must match in thread form, diameter and pitch. Check the length against the thickness of the parts being joined, including the square neck.
Related items: Hobson UNC Stepped Plough Bolt, Grade 9, Plain, 5/8" x 2-3/4", Box of 100 and Hobson UNC Square Neck Plough Bolt, Grade 8, Plain, 3/8", 7/16" and 1/2".
| Option | Part number | SKU |
|---|---|---|
| 5/8 / 1-1/2 | CBPG9PC0620150 | A0142556 |
| 5/8 / 1-3/4 | CBPG9PC0620175 | A0142557 |
| 3/4 / 2 | CBPG9PC0750200 | A0142567 |
| 5/8 / 2 | CBPG9PC0620200 | A0142558 |
| 3/4 / 2-1/2 | CBPG9PC0750250 | A0142569 |
| 5/8 / 2-1/2 | CBPG9PC0620250 | A0142560 |
| 7/8 / 2-1/2 | CBPG9PC0870250 | A0142579 |
| 3/4 / 2-1/4 | CBPG9PC0750225 | A0142568 |
| 5/8 / 2-1/4 | CBPG9PC0620225 | A0142559 |
| 7/8 / 2-1/4 | CBPG9PC0870225 | A0142578 |
| 1 / 2-3/4 | CBPG9PC1000275 | A0142587 |
| 3/4 / 2-3/4 | CBPG9PC0750275 | A0142570 |
| 5/8 / 2-3/4 | CBPG9PC0620275 | A0142561 |
| 7/8 / 2-3/4 | CBPG9PC0870275 | A0142580 |
| 1 / 3 | CBPG9PC1000300 | A0142588 |
| 3/4 / 3 | CBPG9PC0750300 | A0142571 |
| 5/8 / 3 | CBPG9PC0620300 | A0142562 |
| 7/8 / 3 | CBPG9PC0870300 | A0142581 |
| 1 / 3-1/2 | CBPG9PC1000350 | A0142590 |
| 3/4 / 3-1/2 | CBPG9PC0750350 | A0142573 |
| 5/8 / 3-1/2 | CBPG9PC0620350 | A0142563 |
| 7/8 / 3-1/2 | CBPG9PC0870350 | A0142583 |
| 1 / 3-1/4 | CBPG9PC1000325 | A0142589 |
| 3/4 / 3-1/4 | CBPG9PC0750325 | A0142572 |
| 7/8 / 3-1/4 | CBPG9PC0870325 | A0142582 |
| 1 / 3-3/4 | CBPG9PC1000375 | A0142591 |
| 1-1/4 / 3-3/4 | CBPG9PC1250375 | A0142596 |
| 3/4 / 3-3/4 | CBPG9PC0750375 | A0142574 |
| 1-1/4 / 3-7/8 | CBPG9PC1250387 | A0142597 |
| 1 / 4 | CBPG9PC1000400 | A0142592 |
| 1-1/4 / 4 | CBPG9PC1250400 | A0142598 |
| 3/4 / 4 | CBPG9PC0750400 | A0142575 |
| 5/8 / 4 | CBPG9PC0620400 | A0142564 |
| 7/8 / 4 | CBPG9PC0870400 | A0142584 |
| 1 / 4-1/2 | CBPG9PC1000450 | A0142593 |
| 1-1/4 / 4-1/2 | CBPG9PC1250450 | A0142600 |
| 1-3/8 / 4-1/2 | CBPG9PC1370450 | A0142606 |
| 3/4 / 4-1/2 | CBPG9PC0750450 | A0142576 |
| 5/8 / 4-1/2 | CBPG9PC0620450 | A0142565 |
| 7/8 / 4-1/4 | CBPG9PC0870425 | A0142585 |
| 1-1/4 / 4-1/8 | CBPG9PC1250412 | A0142599 |
| 1 / 5 | CBPG9PC1000500 | A0142594 |
| 1-1/4 / 5 | CBPG9PC1250500 | A0142601 |
| 3/4 / 5 | CBPG9PC0750500 | A0142577 |
| 5/8 / 5 | CBPG9PC0620500 | A0142566 |
| 7/8 / 5 | CBPG9PC0870500 | A0142586 |
| 1 / 5-1/2 | CBPG9PC1000550 | A0142595 |
| 1-3/8 / 5-1/2 | CBPG9PC1370550 | A0142607 |
| 1-1/4 / 5-1/4 | CBPG9PC1250525 | A0142602 |
| 1-1/4 / 6 | CBPG9PC1250600 | A0142603 |
| 1-3/8 / 6 | CBPG9PC1370600 | A0142608 |
| 1-1/4 / 6-1/2 | CBPG9PC1250650 | A0142604 |
| 1-1/4 / 7 | CBPG9PC1250700 | A0142605 |
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Hobson UNC Square Neck Plough Bolt, Grade 9, Plain, 5/8" to 1-3/8": 3/4 / 3-1/2
SKU: A0142573 | Model: CBPG9PC0750350
Hobson CBPG9PC0750350: 3/4" x 3-1/2" UNC square neck plough bolt, Grade 9, plain. Pack of 50. Threads per inch 10 TPI.

