Square Hole Washer
Square Hole Washers are special custom washers with square inner hole, designed for square bolts, square studs and square shaft fasteners. They evenly distribute clamping pressure and prevent fastener rotation during tightening. We can supply square hole washers matched with our self-produced nuts and supporting bolts for one-stop procurement.
Handan Hengmai Fasteners Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of square hole washer in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality square hole washer for sale here from our factory. Customized orders are welcome.
Product Overview
Square Hole Washers are special custom washers with square inner hole, designed for square bolts, square studs and square shaft fasteners. They evenly distribute clamping pressure and prevent fastener rotation during tightening. We can supply square hole washers matched with our self-produced nuts and supporting bolts for one-stop procurement. Custom outer diameter, thickness and hole dimensions are available to meet non-standard assembly requirements for machinery, construction and metal structure projects.
Product Specification
|
Parameter Item |
Standard Index |
|
Material |
Carbon steel, 304 stainless steel |
|
Surface Treatment |
Black oxide, electro-galvanized, hot dip galvanized, passivation |
|
Size Range |
Customized according to square inner hole size |
|
Shape |
Round outer shape with square inner hole (square outer washer optional) |
|
Tolerance |
Strict dimensional control for good fit with square fasteners |
Product Properties
1. Square inner hole structure locks the fastener effectively and avoids rotation during tightening;
2. Smooth surface disperses clamping pressure and protects workpiece surface from damage;
3. Flexible customized dimensions, suitable for various non-standard square bolt assemblies;
4. Multiple surface treatments support indoor equipment and outdoor anti-corrosion scenarios.
Application
Widely used for agricultural machinery, mining equipment, metal support frames, gate fittings, special engineering machinery, non-standard equipment and custom steel structure assemblies using square bolts.
Quality Control & Testing
Each batch undergoes dimensional inspection, flatness testing and surface screening. Sample measurement reports can be provided for bulk orders. All processes comply with ISO9001 quality control system.
Packing, Storage, Handling And Transportation
Standard packing: inner moisture-proof PE bags + outer woven bags, palletized for sea shipment. Custom labels and shipping marks are supported. Store in dry ventilated warehouse to prevent rust. We provide FOB, CIF, DDP multi-mode logistics solutions.
After‑Sales & Service
Our technical team supports drawing confirmation and dimension verification before production. Any factory-quality defects will be replaced free of charge with relevant logistics costs covered.
FAQ
Q1: Can you produce square outer shape washers with square hole?
A: Yes, both round outer and square outer square hole washers can be customized according to drawings.
Q2: Can I order washers together with your nuts and square bolts?
A: Yes, we can assemble complete fastening kits with our self-produced nuts for consolidated shipment.
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