Product Description
A2 Stainless Steel BSF Wing Nuts – 1/4″, 5/16″ & 3/8″
A2 stainless steel wing nuts with British Standard Fine threads. The two-wing design allows tightening and loosening by hand, making these nuts useful for fittings that require regular adjustment or removal.
Available in 1/4″, 5/16″ and 3/8″ BSF sizes for matching bolts, studs and threaded components.
Specifications
| Product type | Wing nut / butterfly nut |
|---|---|
| Material | A2 stainless steel |
| Thread type | BSF — British Standard Fine |
| Operation | Hand tightened using two wings |
| Available nominal sizes | 1/4″, 5/16″ and 3/8″ |
Thread Sizes and TPI
| Nominal Thread Size | Threads Per Inch | Nominal Diameter in Millimetres |
|---|---|---|
| 1/4″ BSF | 26 TPI | 6.35mm |
| 5/16″ BSF | 22 TPI | 7.9375mm |
| 3/8″ BSF | 20 TPI | 9.525mm |
Sizes refer to the nominal mating thread diameter. Check both the diameter and TPI before ordering; BSF threads differ from UNF, UNC, BSW and metric threads.
Key Features
- A2 stainless steel construction for corrosion resistance in general environments.
- Two wings provide a grip for hand operation.
- Three imperial BSF thread sizes.
- Convenient for assemblies requiring frequent adjustment or dismantling.
Typical Applications
Restoration projects, removable covers, adjustable brackets, workshop fixtures and equipment with matching BSF threaded components.
Installation
Start the nut by hand on a matching BSF thread and turn using the wings until suitably secure. Avoid forcing the nut or overtightening with pliers. Use the fastening and locking arrangement required by the application.
Ordering
Select the required BSF thread size and pack quantity from the available options before adding to your basket.
Standards
Thread designation: British Standard Fine. No specific dimensional DIN, ISO or BS standard has been verified for these wing nuts.
