Trade Discount 20%
Self-Centring Screw Seal | Steel with Rubber Sealing Lip | Zinc Plated | @Pack of 5 | by Wurth
Self-Centring Screw Seal designed for M4 screws, featuring a steel washer with a moulded-on rubber sealing lip for optimal sealing. Ideal for high-pressure and vacuum applications, this pack of 5 ensures reliable sealing in environments ranging from -35°C to +120°C. Easy to install without special machining, it’s perfect for industrial and mechanical uses.
Please sign in so that we can notify you about a reply
Sign in
Please login to continue to your account.
Product Name/Title: Self-Centring Screw Seal | Steel with Rubber Sealing Lip | Zinc Plated | @Pack of 5 | by Wurth
Brand: Wurth
SKU: 469004
Alternatively Known As: Self-centering screw seal washer, Rubber sealed washer, Metric hex bolt sealing washer, NBR70 sealing washer
Technical Specifications
- Suitable for screw: M4
- Internal diameter (d1): 4 mm
- Outer diameter (d2): 8 mm
- Thickness (h1): 1 mm
- Material: Steel
- Shore A hardness: 70 +/- 5
- Surface: Zinc plated
- Temperature resistance: -35 to 120 °C
- Through-hole according to DIN EN 202723 f: 4.3 mm
- Through-hole according to DIN EN 202723 m: 4.5 mm
- Dimensions (H x L x W): 1mm x 8mm x 8mm
- Weight: 0.01 kg
Key Features
- Steel washer with moulded-on rubber sealing lip (NBR70)
- Zinc plated steel, blue passivated (A2K)
- Optimal sealing effect due to precisely defined lip formation
- No pressing out under extreme pressure due to metal-metal contact
- Low tightening torque required
- No retightening of installed seal needed
- Reusable and easy, quick, reliable, and secure installation
- Overhead installation possible
- No special machining of metal surface required
- Temperature resistant from -35°C to +120°C
- Rubber seal hardness: 65-75 Shore
Professional Installation Requirements
- Installation is straightforward and can be performed without special machining; however, professional installation is recommended for critical applications to ensure optimal sealing performance.
Applications
- Sealing screw heads primarily with metric hexagon head bolts according to DIN standards
- Flange connections requiring high pressure and vacuum sealing
- Use in environments with broad temperature ranges from -35°C to +120°C
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Reusable design reduces waste and replacement frequency
- Durable materials extend product life and reduce environmental impact
Warranty Information
Standard manufacturer warranty applies. Please refer to Wurth warranty policy for details.
Available Now
Wurth Screw Seal Self-Centring 5 PCS is available now for immediate purchase. Ideal for industrial and mechanical applications requiring reliable screw head sealing.
