Product Description
3/8" BSW Whitworth Grade R Hexagon Set Screws – Unplated Steel, 16 TPI
These 3/8" BSW Whitworth hexagon head set screws are manufactured from Grade R high tensile steel with an unplated self colour finish. They feature a fully threaded shank and a 16 TPI British Standard Whitworth thread for use with matching BSW nuts or tapped holes.
The hexagon head allows installation and removal using a suitable spanner or socket. Available in six imperial lengths from 3/4 inch to 2 inches, these screws are suitable for maintenance, restoration and repairs involving existing Whitworth-threaded assemblies.
Key Features
- Grade R high tensile steel: For mechanical fastening and engineering applications.
- 3/8" BSW thread: British Standard Whitworth thread with 16 threads per inch.
- Fully threaded shank: For fastening into matching nuts or tapped components.
- Hexagon head: For tightening with a suitable spanner or socket.
- Unplated self colour finish: Steel supplied without zinc plating.
- Choice of lengths: Select the required length and pack quantity from the available options.
Technical Specifications
| Product Type | Hexagon head set screw |
|---|---|
| Thread Size | 3/8" BSW |
| Nominal Thread Diameter | 3/8 inch – 9.525mm |
| Threads Per Inch | 16 TPI |
| Thread Pitch | 1.5875mm |
| Thread Form | British Standard Whitworth – 55° thread angle |
| Material | High tensile steel |
| Grade | R |
| Finish | Self colour, unplated |
| Head Style | Hexagon |
| Thread Coverage | Fully threaded |
| Length Measurement | Measured from beneath the head to the end of the screw |
Available Lengths
| Thread Size | Imperial Length | Metric Equivalent |
|---|---|---|
| 3/8" BSW – 16 TPI | 3/4 inch | 19.05mm |
| 3/8" BSW – 16 TPI | 1 inch | 25.4mm |
| 3/8" BSW – 16 TPI | 1 1/4 inches | 31.75mm |
| 3/8" BSW – 16 TPI | 1 1/2 inches | 38.1mm |
| 3/8" BSW – 16 TPI | 1 3/4 inches | 44.45mm |
| 3/8" BSW – 16 TPI | 2 inches | 50.8mm |
Metric equivalents are conversions of the stated imperial lengths.
Typical Applications
- Maintenance and repair of Whitworth-threaded machinery.
- Classic vehicle and equipment restoration.
- Securing brackets, housings and mechanical components.
- Replacing fully threaded screws in existing 3/8" BSW assemblies.
Selecting Your Set Screws
Check that the mating nut or tapped hole requires a 3/8" BSW thread with 16 TPI. Choose a length that provides sufficient thread engagement and accommodates the thickness of the components being joined.
Select your required length and pack quantity from the available options. Browse our nuts for matching fastening options, or visit our thread data guide to check Whitworth thread sizes and pitches.
