Product Description
UNF A4 Marine Grade Stainless Steel Nyloc Nuts
A4 marine grade stainless steel nyloc nuts with Unified National Fine threads. The nylon insert grips the mating thread to help resist loosening under vibration, while the stainless steel body provides corrosion resistance for marine and outdoor applications.
Available Thread Sizes
| Thread Size | Threads Per Inch |
|---|---|
| 1/4 inch UNF | 28 TPI |
| 5/16 inch UNF | 24 TPI |
| 3/8 inch UNF | 24 TPI |
| 7/16 inch UNF | 20 TPI |
| 1/2 inch UNF | 20 TPI |
| 5/8 inch UNF | 18 TPI |
Key Features
- A4 marine grade stainless steel body
- Nylon insert provides prevailing torque locking action
- UNF fine thread series
- Hexagon exterior for tightening with a spanner or socket
- Six thread size options
Installation
Use with a matching UNF bolt or threaded stud. Ensure the bolt passes fully through the nylon insert so the locking feature engages. Tighten using a correctly fitting spanner or socket and the torque specified for the assembly.
No verified BS, DIN or ISO manufacturing standard is assigned to this listing. Compliance with ASME B18.16.6 is not confirmed.
Useful Links
Specifications are intended as a guide. Confirm the required thread size, pitch and nut dimensions before ordering.
| A | B | C | D |
| 1/4" | 7/16" | 5/16" | 28 |
| 5/16" | 1/2" | 11/32" | 24 |
| 3/8" | 9/16" | 29/64" | 24 |
| 1/2" | 3/4" | 19/32" | 20 |
| 5/8" | 15/16" | 3/4" | 18 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
