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Spring lock washer get different surface treatments to improve performance. They might get zinc plating, phosphate coatings, or hot-dip galvanizing. Zinc helps prevent rust and handy for outdoor stuff. Black oxide makes them less shiny (some folks like the look) and adds mild rust resistance. Stainless steel versions can be electropolished, which smooths the surface and makes it easier to clean,good for places like kitchens or hospitals. For really harsh conditions (like salty air or constant dampness), there’s specialty stuff like Dacromet coatings. These treatments aren’t just about durability,they also make installation smoother by reducing friction, so you can tighten them properly without chewing up the grippy ridges.

Size

Spring lock washer come in sizes from M3 (small) up to M24 (big-that’s roughly 1-inch bolts). They follow ISO and DIN quality standards. The outer diameter ranges from 7mm to 50mm, and thickness runs 1mm to 5mm,thicker ones handle heavier jobs. Xiaoguo® manufacturer can provide customized.You can order custom inner diameters. The teeth angles (usually 60° to 90°) are designed to bite into surfaces better.

The spring lock washers have got laser-etched markings so you can easily ID them later. The sizing is precise (±0.1mm tolerance) to avoid fit issues. Product sheets list torque limits, so you can match the washer to your project’s pressure and vibration levels.

Installation considerations

Q: What do I need to watch out for when installing spring lock washer?

A: Install it pointy-side up: Stick the washer’s narrow end against the bolt head or nut,that’s what makes the wedge action work.

Don’t crank it too hard: Use a torque wrench and stick to the torque specs they provide. Over-squishing the washer ruins its grip.

One-and-done rule: These spring lock washers bend permanently when installed, so toss ’em after use,they won’t work as well next time.

Clean first: Scrub the contact areas to remove grease or gunk. No scratches/dents allowed, and skip the lube unless the manual says you can.

Protect soft stuff: If you’re bolting into aluminum or similar materials, slap a regular steel washer underneath to keep the cone from chewing up the softer material.

Check later: After a while, peek at spring lock washer every now and then to confirm it’s staying snug.