Product Description
UNC Grade 8 Raised Head Fully Threaded Plough Bolts
Grade 8 high tensile steel plough bolts with raised heads and fully threaded UNC imperial coarse threads. Available in 5/8" and 3/4" nominal thread sizes, these bolts are intended for compatible plough bolt seats in agricultural machinery, earthmoving equipment and replacement wear components.
Also known as plow bolts, these fasteners must be matched to the original head seat and locating arrangement. The raised head profile should be checked carefully when replacing an existing bolt.
Specifications
| Product type | Raised head plough bolt / plow bolt |
|---|---|
| Material | High tensile steel |
| Strength grade | SAE Grade 8 |
| Head style | Raised head |
| Thread type | UNC – Unified National Coarse |
| Thread direction | Right-hand |
| Thread coverage | Fully threaded |
| Nominal thread sizes | 5/8" and 3/4" |
Thread Sizes and Pitches
| Nominal thread size | Threads per inch |
|---|---|
| 5/8" UNC | 11 TPI |
| 3/4" UNC | 10 TPI |
Listed Length Options
| Imperial length | Metric equivalent |
|---|---|
| 1 1/2" | 38.10mm |
| 2" | 50.80mm |
| 2 1/4" | 57.15mm |
| 2 1/2" | 63.50mm |
Choose the required diameter and length from the available options. Availability may vary by size combination.
Key Features
- Grade 8 high tensile steel construction.
- Raised head plough bolt design.
- Fully threaded UNC coarse threads.
- 5/8" and 3/4" nominal thread sizes.
- Suitable for compatible agricultural and earthmoving equipment assemblies.
Selection and Installation
Match the thread diameter, TPI, length and head profile to the equipment specification. Check the head seating dimensions and locating feature before ordering, particularly when replacing bolts in worn components.
Use compatible nuts and tighten in accordance with the equipment manufacturer's instructions. Confirm the length measurement convention where fitting dimensions are critical.
Pack Sizes
Available in packs of 1, 5, 10, 20, 50 and 100. Select the required size, length and pack quantity from the options.
Standards
- SAE J429 – Grade 8 mechanical property reference.
- ASME B1.1 – Unified inch thread reference.
No specific dimensional standard has been verified for this raised head range.
