RS PRO, Bright Zinc Plated Steel Hex Nut, DIN 985, M8
- RS Stock No.:
- 264-6422
- Brand:
- RS PRO
Subtotal (1 pack of 200 units)*
£17.20
(exc. VAT)
£20.60
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 1,200 unit(s) ready to ship from another location
- Plus 8,000 unit(s) shipping from 12 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* |
|---|---|---|
| 200 + | £0.086 | £17.20 |
*price indicative
- RS Stock No.:
- 264-6422
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Imperial or Metric | Metric | |
| Nut Type | Nylon Insert Self Locking Type T | |
| Thread Size | M8 | |
| Material | Steel | |
| Type | Nylon Insert | |
| Finish | Bright Zinc Plated | |
| Width | 13.0mm | |
| Overall Height | 5.50mm | |
| Standards Met | DIN 985 | |
Select all | ||
|---|---|---|
Brand RS PRO | ||
Imperial or Metric Metric | ||
Nut Type Nylon Insert Self Locking Type T | ||
Thread Size M8 | ||
Material Steel | ||
Type Nylon Insert | ||
Finish Bright Zinc Plated | ||
Width 13.0mm | ||
Overall Height 5.50mm | ||
Standards Met DIN 985 | ||
RS PRO Zinc Plated Steel Nylon Insert Lock Nut
A cost-effective alternative to Aerotight® fasteners, this RS PRO self-locking nut has a nylon insert that compresses when the mating bolt is inserted, providing good resistance to vibrations and torque. The nylon insert can withstand temperatures up to +250°C and provides a 360° sealing to help prevent gas and fluid leakage, making the lock nut especially suited for use in heat exchangers.
The fastener is made of mild steel grade 8.8 and conforms to ASTM (American Society for Testing and Materials) standards DIN 985, meaning it can withstand tension of up to 800 N/mm² and is fit for general mechanical, railroad and industrial settings. Zinc-plating on the lock nut ensures good resistance to corrosion and rust.
Nylon-insert lock nuts offer highly effective sealing even when exposed to leaking water, oil, solvents and other liquids. They're commonly used by DIY motor enthusiasts, builders, roofers and joiners.
The fastener is made of mild steel grade 8.8 and conforms to ASTM (American Society for Testing and Materials) standards DIN 985, meaning it can withstand tension of up to 800 N/mm² and is fit for general mechanical, railroad and industrial settings. Zinc-plating on the lock nut ensures good resistance to corrosion and rust.
Nylon-insert lock nuts offer highly effective sealing even when exposed to leaking water, oil, solvents and other liquids. They're commonly used by DIY motor enthusiasts, builders, roofers and joiners.
Features and Benefits:
- Self-locking nut with a nylon insert with 360° seal to prevent gas and fluid leakage
- Resistant to water, solvent, oil and other organic acids
- Zinc-plated to ensure corrosion resistance
- Made from mild steel of 8.8 grade
- Conforms to DIN 985 for high-tensile applications of up to 800 N/mm²
Applications:
Unlike conventional fasteners, lock nuts, sometimes known as self-locking nuts, contain a plastic insert that deforms to the thread of the fastener and prevents loosening without the aid lock threading adhesive.They are commonly used in applications where a secure fastening is required or when joining soft materials such as wood and plastics where high surface pressure might damage the material, or when there is a short clamp load. However, their principal advantage is in applications where there is a high degree of vibration. Locking nuts resist loosening over time in dynamic load conditions and because of this, they are often used in:
- Domestic appliances such as washers and dryers
- Industrial machinery
- Automotive industry
Why RS PRO?
RS PRO is the own brand of RS. The RS PRO Seal of Approval is your assurance of professional quality, a guarantee that every part is rigorously tested, inspected, and audited against demanding standards. Making RS PRO the Smart Choice for our customers.