Engineered to secure insulation firmly and permanently. Our Self-Locking Washers are the essential companion to insulation fasteners, providing a reliable, vibration-resistant hold that simplifies installation and ensures long-term stability.

Key Features:

• Domed Multi-Lanced Hole Design: The precision-stamped, domed design with multiple lanced fingers provides a positive, secure locking action. This mechanism ensures the washer grips the pin tightly, preventing loosening due to vibration or thermal expansion .

• Beveled Edges for Insulation Protection: Most of our washer styles feature beveled edges, which prevent the washer from cutting into the insulation facing. This maintains the integrity and thermal performance of the insulation material .

• Durable & Corrosion-Resistant Materials: Manufactured from high-grade Stainless Steel (304/316) or Galvanized Mild Steel . Galvanized surfaces offer a 40% reduction in corrosion risk compared to untreated steel, extending lifespan in harsh environments . Aluminum options are also available for specific applications.

• Versatile Compatibility: Our self-locking washers are engineered to fit a variety of insulation pins, including CD weld pins, perforated base pins, self-adhesive pins, and lacing anchors . They accommodate standard pin diameters (12 GA, 14 GA, 3mm, 2.7mm, etc.).

• Cost-Effective & Efficient: The self-locking design eliminates the need for secondary fasteners, cutting installation time by up to 25% and reducing labor costs .

Application

• HVAC Ductwork & Equipment: Used to secure glass wool and rock wool insulation in air-conditioning ducts, ensuring soundproofing and thermal efficiency .

• Removable Insulation Blankets: Ideal for fastening insulation covers and blankets, working in tandem with lacing anchors to create durable, reusable insulation systems .

• External Wall Insulation (EWI): Provides secure fixation for insulation panels in residential and commercial building projects, especially where wind-suction-force is significant .

• Marine & Industrial Applications: High-grade SS304/316 washers are the preferred choice for coastal or chemical industrial environments, offering maximum corrosion resistance against saltwater and harsh chemicals .

Installation:

1. Install the Pin: Weld, stick, or secure the insulation pin to the substrate.

2. Press the Washer: Place the self-locking washer over the pin’s shaft and push it firmly against the insulation until it locks into the desired position.

3. Secure & Finish: For a permanent attachment, clip off the remaining portion of the pin or bend it over. The domed lances will hold it securely in place .

FAQ

• What is the difference between round and square self-locking washers?
  The choice is often a matter of design or application preference. Square washers provide a slightly larger surface area of contact, while round washers are standard in many applications .

• What pin sizes do these washers fit?
  We stock washers for standard 12GA, 14GA, and 3mm pins. Custom hole sizes are available upon special order .

• What is the maximum load capacity?
  For standard applications, the recommended load is 3 lbs. per anchor (0.75 lbs./sq. inch maximum). For high-load applications, we recommend our Pro Model washers with enhanced load-bearing capabilities .

• Do you provide samples? How can I get one?
  Yes, samples are available. Please reach out to our sales team with your sample request, and we will arrange shipment promptly.

Customization:
We support full OEM/ODM services. Please contact us for custom washer dimensions, materials (SS304/316, Aluminum), and hole sizes to perfectly match your specific project requirements