M36 External Tab Washer DIN 432 A4 Stainless Steel

M36 - External Tab Washer DIN 432 - A4 Stainless Steel | Vital Parts

Our Stainless Steel External Tab Washer DIN 432, also referred to as a Single External Tab Washer or Anti-Rotation Washer, is engineered to prevent the rotation of fasteners during and after installation. Featuring a single external tab, these washers lock securely against a nut or component surface, ensuring stability in bolted connections exposed to vibration or dynamic loads.

This product has a flat body with an outward-projecting tab that engages with a slot or flat edge on a corresponding nut or assembly feature, effectively locking the washer in place and stopping any movement. Manufactured from high-grade A2 (304) or A4 (316 Marine Grade) stainless steel to DIN 432 standards, these washers deliver excellent resistance to corrosion, wear, and mechanical stress. Available in metric sizes from M4 to M39, they are suitable for a wide variety of fastening applications where reliability and anti-loosening properties are essential.

What are External Tab Washers?

External Tab Washers are a type of locking washer that features a protruding tab on the outside of the washer's circumference. This tab is designed to engage with an adjacent component -typically the flat side of a hex nut or a machined recess -to stop the washer and fastener from rotating. Conforming to the DIN 432 specification, these washers are a trusted solution for maintaining bolt tension in mechanical assemblies, especially in applications where vibration or load shifting could otherwise cause loosening.

Key Features:

• Size : M36
• Internal Diameter : 37mm
• Outside Diameter : 75mm
• Thickness : 2mm
• Tab Width : 9.5mm
• Tab Length : A4
• Manufactured to DIN 432 standard for secure, consistent performance
• Available in A2 (304) and A4 (316 Marine Grade) stainless steel
• External tab prevents unwanted rotation of fasteners
• Corrosion-resistant, suitable for marine and industrial environments
• Compatible with bolts, machine screws, and nuts
• Metric sizes available from M4 to M39
• Quick and easy to install without special tools

Applications:

Our Stainless Steel External Tab Washers are ideal for:

• Automotive and mechanical assemblies
• Construction and infrastructure projects
• Marine and offshore applications
• Electrical panels and industrial enclosures
• Heavy machinery and rotating equipment
• Maintenance and repair operations (MRO)

Benefits:

• Provides a mechanical lock to prevent loosening under vibration
• Enhances the security of bolted connections
• Minimises need for retightening or maintenance
• Made from corrosion-resistant stainless steel for long-lasting performance
• Supports high load applications with reliable tension retention

Why Buy from Vital Parts?

Vital Parts is a trusted UK supplier of high-quality fasteners and industrial components. We offer:

• Same-Day Dispatch: Ensuring fast delivery to keep your projects on schedule.
• Competitive Trade Pricing: Bulk discounts available for larger orders.
• Expert Support: Our technical team is ready to assist with product selection and application guidance.

When you need a dependable, anti-rotation washer for secure fastening under load, our Stainless Steel External Tab Washers DIN 432 are the ideal choice. For product advice, availability, or bulk pricing, contact our expert team today on 01233 713581.