Industrial Fastener · Washers Series
Square Washer
Square washers (square plate washers) are heavy steel plates with a center hole, used to distribute load over wood members, with anchor bolts, and in heavy timber construction. Significantly thicker than standard flat washers.
Product Overview
Square Washer sourcing essentials
Square washers (square plate washers) are heavy steel plates with a center hole, used to distribute load over wood members, with anchor bolts, and in heavy timber construction. Significantly thicker than standard flat washers.
Project or drawing specification
Carbon steel
Timber framing, anchor bolts, structural connections
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Common Sizes | 50 × 50 × 5 mm, 75 × 75 × 6 mm, 100 × 100 × 8 mm |
|---|---|
| Hole Size | Match bolt diameter (typically slightly oversize) |
| Material | Carbon steel |
| Surface Finish | Plain, HDG |
| Application | Timber framing, anchor bolts, structural connections |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
When is a square washer used instead of a fender washer?
Square washers (often supplied as plate washers) are heavier and used in structural and timber connections where the washer must resist crushing of soft wood under heavy load. Fender washers are thinner stamped washers for general distributed-load applications.
Ready to quote Square Washer?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.