Self Locking Washers

Made in China 38mm Diameter Round Self-Locking Washer, Stainless Steel / Galvanized Steel Speed Clip for Insulation Pins

Introducing our premium 38mm Diameter Round Self-Locking Washer, also widely known in the industry as a "Speed Clip." Manufactured in China with strict quality control, this essential fastener is engineered to work seamlessly with insulation pins (such as CD weld pins, lacing anchors, or perforated pins) to secure thermal and acoustic insulation materials in place. Available in both Stainless Steel (304/316) and Galvanized Steel, our washers provide a reliable, vibration-resistant hold for demanding industrial and commercial applications.

Key Features & Benefits:

• Dual Material Options for Every Environment:

• Stainless Steel: Offers superior corrosion resistance, making it ideal for harsh, high-temperature, chemical, or marine environments (316 grade available for offshore use).

• Galvanized Steel: Provides a cost-effective, rust-protected solution for standard indoor HVAC, building, and dry industrial applications.

• Secure Self-Locking Mechanism: Each washer features internal barbs or serrated teeth that bite firmly into the shaft of the insulation pin. Once pushed into place, it locks automatically, preventing slippage caused by vibration or thermal expansion-no additional tools, nuts, or fasteners required.

• Optimal 38mm Contact Area: The 38mm (approx. 1-1/2 inch) diameter provides a wide bearing surface that effectively distributes clamping force. This prevents the pin from pulling through soft or dense insulation materials like fiberglass, mineral wool, or ceramic fiber blankets.

• Effortless "Speed Clip" Installation: True to its name, this clip is designed for rapid, tool-free application. Simply press the washer onto the pin after inserting it through the insulation layer. For maintenance or replacement, the washer can be pried off, making it a practical choice for both permanent and temporary setups.

• Fabricator-Friendly Round Design: The smooth, round edges and burr-free finish protect delicate insulation jacketing fabrics from tearing, ensuring a clean, professional finish for removable blankets, pads, and covers.

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Specifications:

Item: Round Self Locking Washer

Material: Stainless Steel Or Galvanized Steel Or Aluminum

Size: 25mm, 30mm, 32mm, 38mm, 40mm, 50mm, 60mm, 63.5mm etc.

Typical Applications:

• Removable Insulation Systems: Used with Lacing Anchors to secure valve, flange, and pipe insulation blankets.

• HVAC & Ductwork: Fastening duct wrap, acoustic panels, and pipe insulation using CD weld pins or self-stick pins.

• Industrial Equipment: Securing thermal insulation on boilers, turbines, heat exchangers, and vessels.

• General Construction: Any project requiring a quick, reliable, and reusable fastening solution for insulation pins.

Why Partner With Us?

As a dedicated manufacturer, we pride ourselves on delivering high-performance insulation fasteners at competitive factory-direct prices. Our 38mm Round Self-Locking Washers undergo rigorous quality checks to ensure consistent dimensions, straight pin compatibility, and reliable locking strength. We offer flexible customization (material, thickness, surface finish) and support bulk orders to meet your project timelines.

Contact us today to request a free sample, verify compatibility with your insulation pins, or get a competitive quote for your next bulk order!