Trade Discount 20%
Lock Washer S Spring Steel | Zinc Coated | Belleville Shape | M4 Compatible | @Pack of 25 | by Wurth
Lock Washer S Spring Steel is designed for secure mechanical fastening, featuring a Belleville shape that optimizes friction fit and prevents loosening. Ideal for M4 screw threads, this zinc-coated washer enhances corrosion resistance, making it perfect for industrial and construction applications. Ensure reliable connections with this pack of 25 washers, suitable for both short screws and vertical loads.
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Technical Specifications
- Suitable for screw thread: M4
- Internal diameter (d1): 4.3 mm
- Outer diameter (d2): 7 mm
- Height (h1): 1 mm
- Thickness (s1): 0.5 mm
- Material: Spring steel
- Surface: Zinc plated
- RoHS-compliant: Yes
- Form: S
- Dimensions (H x L x W): 1mm x 7mm x 7mm
- Weight: 0.01 kg
Key Features
- Belleville washer shape achieves optimum friction fit with simultaneous form fit via helical gearing
- Prevents connection loosening by supplementing pre-tensioning force
- Mechanically applied zinc coating for corrosion resistance
- Suitable for screw thread M4
Professional Installation Requirements
- Installation by a qualified technician or tradesperson is recommended to ensure proper fastening and safety.
Applications
- Mechanical fastening requiring secure screw connections
- Use with short screws and vertical loads to prevent loosening
- Industrial and construction fastening applications
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- RoHS-compliant material ensures reduced hazardous substances
- Zinc plating provides corrosion resistance extending product life
Warranty Information
Standard manufacturer warranty applies.
Available Now
Wurth Lock Washer S Spring Steel Zinc Coated 25 PCS is available for immediate purchase, ideal for mechanical fastening applications requiring secure screw connections.
