Product Description
A2 Stainless Steel BA Nyloc Locking Nuts – 2BA & 4BA
A2 stainless steel Nyloc locking nuts with British Association threads, available in 2BA and 4BA sizes. Each nut features a nylon insert that grips the mating thread to provide resistance to loosening.
Suitable for matching BA bolts, screws and studs in restoration, model engineering and general maintenance applications.
Specifications
| Product type | Nylon insert locking nut / Nyloc nut |
|---|---|
| Nut body material | A2 stainless steel |
| Locking element | Nylon insert |
| Thread type | BA — British Association |
| Available sizes | 2BA and 4BA |
| Drive | External hexagon |
Thread Sizes
| BA Size | Nominal Thread Diameter | Thread Pitch | Approximate TPI Equivalent |
|---|---|---|---|
| 2BA | 4.7mm | 0.81mm | 31.36 |
| 4BA | 3.6mm | 0.66mm | 38.48 |
BA sizes identify a specific thread system. They are not interchangeable with metric, UNC, UNF, BSF or BSW threads. TPI values are approximate conversions from the BA pitch.
Key Features
- A2 stainless steel nut body for corrosion resistance in general environments.
- Nylon insert provides a prevailing-torque locking action.
- Available in 2BA and 4BA threads.
- External hexagon for tightening with a correctly fitting spanner or socket.
Typical Applications
Model engineering, instrument assemblies, restoration projects and equipment repairs requiring matching BA threaded fixings.
Installation
Fit the nut with the metal-threaded end towards the joint and the nylon insert facing away. Start by hand, then tighten with a suitable spanner or socket. Ensure the mating screw passes fully through the nylon insert when assembled.
Check that the nylon insert is suitable for the operating temperature and chemical exposure. Replace the nut if the insert is damaged or no longer provides effective locking resistance.
Ordering
Select the required BA thread size and pack quantity from the available options before adding to your basket.
Standards
Thread designation: British Association. No specific dimensional DIN, ISO or BS standard has been verified for these locking nuts.
