M20 Long Tab Washer DIN 93 A2 Stainless Steel

M20 Long Tab Washer DIN 93 - A2 Stainless Steel | Vital Parts - WT93-M20-A2

Our A2 Stainless Steel M20 Long Tab Washer DIN 93 is a locking washer designed to prevent rotation of fasteners during and after installation. Featuring an extended tab that locks into a corresponding slot or keyway, these washers provide enhanced stability in bolted assemblies, making them ideal for applications where loosening due to vibration or torque is a concern.

This product has a flat profile with a protruding long tab that is bent upwards or positioned to engage with the assembly surface or component. Manufactured to the DIN 93 specification using high-performance A2 (304) or A4 (316 Marine Grade) stainless steel, these washers offer excellent mechanical strength and corrosion resistance. Available in metric sizes from M4 to M39, they are compatible with a wide range of fasteners and are suitable for use in environments where high durability and anti-loosening performance are required.

What are Long Tab Washers?

Long Tab Washers are a type of lock washer specifically engineered to stop the rotation of nuts, bolts, or screws by physically obstructing movement. The defining feature is the long tab that extends from the washer's edge and is bent or slotted into a recess, bolt head, or assembly feature to create a mechanical lock. When installed, this tab prevents the washer and fastener from turning, even under intense vibration or thermal cycling. These are particularly useful in critical load-bearing assemblies where joint integrity is paramount.

Key Features & Technical Specifications:

• Size : M20
• Internal Diameter : 21mm
• Outside Diameter : 42mm
• Thickness : 1mm
• Tab Width : 18mm
• Tab Length : 36mm
• Manufactured to DIN 93 specification for reliable performance
• Available in A2 (304) and A4 (316 Marine Grade) stainless steel
• Long tab prevents fastener rotation and loosening
• Corrosion-resistant for indoor, outdoor and marine use
• Compatible with bolts, machine screws and nuts
• Metric sizes available from M4 to M39
• Easy to install with manual or powered tools

Applications:

Our Stainless Steel Long Tab Washers are ideal for:

• Mechanical equipment and engine assemblies
• Automotive, rail and aerospace industries
• Construction and structural frameworks
• Marine and offshore installations
• Electrical and control panel mounting
• Industrial machinery and rotating assemblies

Benefits:

• Provides a secure, mechanical lock against rotation
• Reduces risk of joint failure due to loosening
• Maintains fastener tension under vibration or shock
• Resistant to corrosion, wear and fatigue
• Compatible with a wide range of fasteners and surfaces

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.

For applications requiring anti-rotation performance and long-term durability, our Stainless Steel Long Tab Washers DIN 93 offer a reliable solution. To learn more or place an order, contact our expert team today on 01233 713581.