Insulation Washers for HVAC, Ductwork & Industrial Insulation
Self-locking washers are used with insulation pins and weld pins to secure thermal and acoustic insulation materials. IKING supplies round and square washers in galvanized steel and stainless steel, with custom sizes available for OEM projects.
Designed for quick and secure insulation fixing on standard weld pins and lacing anchors.
Provides a larger bearing contact area for highly stable insulation retention under vibration.
Dome-shaped caps for secure insulation pin locking, sharp point protection and neat finishing.
Commonly utilized across industrial, commercial, and marine thermal insulation systems.

| Specification Parameter | Standard Options & Customization |
|---|---|
| Product Type | Round Self-Locking Washers / Square Washers / Dome Caps |
| Material Options | Galvanized Steel / Stainless Steel (SS304 / SS316) / Aluminum |
| Pin Hole Size | 10 GA / 12 GA / 14 GA (Custom gauges supported) |
| Surface Finish | Galvanized / Bright Polished / Anti-Corrosion Coating |
| OEM / ODM Service | Custom dimensions, thickness, and specialized bulk packaging |
30+ Years
Insulation & Stud Welding Expertise
ISO 9001
Strict Quality Management System
OEM / ODM
Tailored Manufacturing Support
What are self-locking washers used for?
They are securely locked onto insulation pins or weld pins to firmly hold thermal and acoustic insulation materials in place on metal surfaces.
Which materials and sizes are available?
We offer galvanized steel, stainless steel (SS304/SS316), and aluminum. Standard pin gauges include 10 GA, 12 GA, and 14 GA, with custom dimensions available upon request.
How can I request a sample or quotation?
Simply click the "Get a Quote" button below and send us your pin diameter, washer specifications, or project drawings for an immediate factory reply.
Send us your pin diameter, washer size or custom drawing for a competitive factory quotation.
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