Description
Overview:
This 5/16 inch BSW Hex Nut is a standard Whitworth-thread nut used to secure 5/16 inch BSW bolts and studs on machinery and equipment built to British thread standards. It suits repair and maintenance on construction plant, garden machinery, compressors, pumps, generators, and general fabrications where Whitworth fixings are present.
Key Features:
- Thread size: 5/16 inch BSW
- Thread pitch: 18 TPI
- Thread form: Whitworth 55° profile, coarse series
- Standard right-hand thread for general applications
- Hex pattern for spanner or socket installation
- Steel construction for dependable clamping strength
- Direct fit for 5/16 BSW bolts and studs
- Appropriate for British-spec machinery and heritage equipment
- Not interchangeable with UNC 5/16 (60°) threads
- Helps resist loosening with correct torque and washers
- Sold individually (each); order quantity as required
- Suitable for repairs, replacements, and assembly tasks
Typical Applications:
Used to clamp brackets, guards, housings, engine covers, handle frames, and ancillary components on equipment built with Whitworth fasteners. Common on older UK and Commonwealth construction plant, compactors, mixers, rollers, generators, pumps, and garden machinery. Provides secure jointing where a 5/16 inch BSW male fastener is specified, supporting routine maintenance, refurbishment, and parts replacement in workshops, site repairs, and DIY settings.
Also known as:
Whitworth nut, 5/16 Whit nut, 5/16 BSW hex nut, 5/16 W hex, British Standard Whitworth nut, BSW full nut, hex nut 5/16 Whit, Whitworth fastener nut.
Product Specifications
| L&S Part No. | 052 103 |
|---|---|
| Unit of Sale | 1 |

