IKING Square Self‑Locking Washers are designed for weldable insulation pins. Made of galvanized or stainless steel, they firmly lock thermal insulation materials on HVAC ducts. Features strong clamping force, anti‑loosening performance, easy installation, available in multiple sizes for industrial insulation projects.
IKING Square Self‑Locking Washers are high‑performance fastening accessories specially matched with weldable insulation pins for HVAC and industrial thermal insulation systems. Manufactured by China Aike Industrial Co., Ltd, these square lock washers adopt special star‑split self‑locking structure. When pressed onto insulation pins, the inner star‑shaped teeth will bite tightly on pin shafts to realize reliable anti‑loosening effect, fixing insulation cotton, duct liner and thermal insulation materials firmly on ventilation ducts, equipment shells and pipe surfaces.
Our square self‑locking washers are available in galvanized carbon steel and stainless steel 304 / 316 material options. Galvanized types provide good general anti‑corrosion performance for ordinary indoor HVAC projects. Stainless steel versions excel in humid, corrosive, outdoor and marine environments, delivering long‑term service life. Different from ordinary flat washers, the square outline offers larger compression area to avoid piercing soft insulation materials, reducing local stress damage to insulation layers. Simple on‑site operation without extra tools greatly improves construction efficiency for insulation installation work.
These lock washers work cooperatively with our full series of weldable insulation pins, forming a complete fastening solution for thermal‑insulation construction.
China Aike Industrial Co., Ltd is a professional Chinese manufacturer and exporter of stud welding products and insulation fasteners under brand IKING. We integrate product R&D, precision stamping production and global B2B supply. Our main product portfolio covers various stud welds, weld‑on insulation pins, self‑adhesive insulation pins, and supporting accessories including square self‑locking washers, dome cap washers and star lock washers.
We strictly control raw‑material incoming inspection and finished‑product dimension testing. Our products are widely exported to Europe, Southeast Asia, Middle East and North‑America markets, serving HVAC contractors, engineering companies, equipment manufacturers and wholesale distributors. We accept OEM & ODM custom orders, provide technical support, product sample service and stable bulk‑order delivery for global partners.
Q1: Which insulation pins can match square self‑locking washers?
A: They fit most weld‑on perforated insulation pins. Please confirm the shaft diameter of insulation pins before purchasing to get proper matching.
Q2: What is the difference between galvanized and stainless‑steel lock washers?
A: Galvanized carbon steel is cost‑effective for ordinary indoor HVAC projects. Stainless steel 304/316 performs better against moisture and chemical corrosion, suitable for outdoor, marine and high‑humidity working conditions.
Q3: Can you make custom sizes for square self‑locking washers?
A: Yes. We support custom stamping dimensions and special surface treatment according to customer drawings and sample requirements. MOQ will apply for customized items.
Q4: Are samples available for testing?
A: We can supply small‑quantity product samples for your performance verification before bulk purchasing.
Q5: Do these washers need special installation tools?
A: No special tool is required. Workers can press washers onto insulation‑pin shafts by hand for quick installation.
