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Stainless steel flat washers, also known as flat washers, washers, or washers, are standard fastener washers used in conjunction with bolts and screws, made by stainless steel sheets. Placed between the nut or bolt head and the workpiece, they increase the contact area, distribute fastening pressure, and prevent surface damage or loosening of the workpiece, while also cushioning, sealing, and anti-slip functions. The mainstream materials are divided into 201, 304, and 316L stainless steel, suitable various working conditions such as household, mechanical, chemical, marine, and water purification equipment.
201 Stainless Steel Flat Washer High cost-performance ratio, basic rust prevention, suitable for dry indoor environments and general hardware assembly, not suitable for acidic, alkaline, or seawater environments. 304 Stainless Steel Flat Washer (Best-selling and commonly used) Universal food-grade rust-proof material, resistant to water and mild acids/alkalines, not easily rusted, universally used for household appliances, machinery, plumbing, food equipment, and outdoor equipment, with the highest market demand. 16/316L Stainless Steel Flat Washer (Industrial corrosion-resistant version) Added molybdenum element, resistant to strong acids/alkalines, seawater, and salt spray corrosion high-temperature resistant, widely used in chemical pipelines, marine vessels, sewage equipment, pharmaceuticals, and outdoor coastal equipment, specifically for long-term humid and corrosive environments
Increase bearing area: Distributes pressure when tightening screws, preventing thin plates, plastic, and aluminum workpieces from being crushed or dented by the; Rustproof and corrosion-resistant: Stainless steel material is not easily oxidized or rusted, offering a longer service life compared to galvanized iron washers; Rich specifications: Standard sizes M2/M3/M4/M5/M6/M8/M10/M12 to M36, plus ultra-thin 0.11mm precision adjustment washers, thickened heavy-duty washers, and enlarged/widened washers; Flat and burr-free: Precision stamping process ensures smooth cut surfaces without bur, preventing damage to workpieces during assembly; Multi-scenario adaptation: Can be used as fastening washers, mold gap adjustment washers, or flange metal gaskets; Customizable: custom irregular shapes, non-standard sizes, and thickened/widened washers based on drawings or samples, with laser cutting available for bulk orders
Household hardware: furniture, doors and windows, bathroom, clothes drying rack screw fastening; Mechanical equipment: machine tools, motors, automation equipment assembly cushioning;Plumbing and water purification: water pipe flanges, water purifiers, stainless steel piping sealing; Chemical and marine: acid and alkali piping, coastal equipment, marine machinery anticorrosion fastening; Molds and instruments: precision equipment gap adjustment, bearing micro-adjustment shims; Engineering and infrastructure: steel structures, guardrails, piping flange assembly
Distribute bolt pressure to protect the workpiece surface; Fill installation gaps to reduce vibration and loosening; Isolate different metals to prevent electrochemical corrosion; Assist at flange connections to improve sealing performance; Adjust assembly tolerances for precision equipment.
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