External Teeth Serrated Lock Washer

The external teeth serrated lock washer is a type of fastener made to stop loosening when there’s vibration or heavy loads.It has teeth that face outward, and these teeth dig into the surfaces it’s attached to, creating a secure grip.People often use these washers in cars, machinery, and industrial setups because they help keep torque from slipping.Unlike flat washers, they’re both flexible and rigid,they can fit on uneven surfaces while still keeping tension tight.They’re made to meet standards like ASTM and DIN, and they’re an affordable way to make connections stronger.The teeth on them mean you don’t need extra glue or adhesives, which makes installing them easier in places with a lot of stress.

Features

The external teeth serrated lock washer is known for handling vibration well and can be used more than once. Its teeth grip tightly, which helps stop bolts from slipping even in tough conditions. It works with different kinds of bolts and materials, so it’s useful in many industries. The washer is light, so it doesn’t add much extra weight but still does its job. Engineers like that it keeps the clamping force steady over time, which makes equipment last longer. Plus, it’s affordable and easy to use, so people prefer it over complicated locking systems. If you need something reliable, this washer provides strong mechanical security.

Material

Q: What materials are usually used to make those external teeth serrated lock washers, and why does the material matter?

A: Okay, so external teeth serrated lock washers are mostly made from three materials: carbon steel, stainless steel, or brass. The choice depends on where you’re using them. Carbon steel ones are cheap and strong for everyday factory stuff, and they’re often coated with zinc or phosphate to fight rust. Stainless steel (like grades 304 or 316) is better for wet or chemical-heavy places (think boats or labs) because it doesn’t corrode easily. Brass? Those are for electrical jobs since they won’t spark.

The material affects how long the external teeth serrated lock washer lasts, how it handles weight, and whether it’ll stay tight when things shake. For example, if you heat-treat carbon steel, it gets harder, so the teeth grip better even when bolts are cranked super tight. Bottom line: pick the right material for where it’s going. Wrong choices can lead to rust (if metals react) or the washer dying way too soon.