



S640RNB Electro-Zinc Plated Roofing Nuts & Bolts M6 x 40mm ( Pack Size 200 )
S640RNB
S640RNB Electro-Zinc Plated Roofing Nuts & Bolts M6 x 40mm – Long-Length Fixings for Trunking & Tray Applications (Pack of 200)
The S640RNB Electro-Zinc Plated Roofing Nuts & Bolts are ideal for securing cable trays, trunking, and other thin-section materials where a longer fixing length is required. With a corrosion-resistant finish and flat seating surface, they provide a reliable, flush-fitting solution for general electrical and mechanical applications.
- Extended 40mm Length: Ideal for deeper or multi-layer fixing points in cable tray and trunking systems.
- Flat Seating Head: Ensures secure clamping without damaging thin materials.
- Bright Zinc Plated Finish: Protects against corrosion in internal environments, maintaining performance and appearance.
- Double Slot Head: Compatible with standard slotted screwdrivers for quick and easy installation.
- Complete Set: Supplied with matching M6 nuts for immediate, hassle-free use on site.
Technical Specification
- Material: Steel, electro-zinc plated
- Bolt Size: M6 x 40mm
- Head Type: Flat seating, double slot
- Corrosion Resistance: Bright zinc plated for long-lasting durability
- Pack Size: 200 sets (nuts and bolts)
✅ Use the S640RNB Roofing Nuts & Bolts for extended-length, corrosion-resistant fixings in cable containment and structural support systems!

Ean Code | 5060333851170 |
S4 - Screw Size | M6 |
Product | Roofing Bolt & Nut |
Type | Nut & Bolt |
Diameter | 6 mm |
Length | 40 mm |
Use | Roofing |
Material | Steel |
Head Style | Button |
Overall Length | 40 mm |
Finish | Bright Zinc Plated BZP |
Standards | BS4933 |
Hole Diameter | 6 mm |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.