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Lock Washers: Metric & Inch Split, Internal & External Styles

Lock washers are specialized fasteners typically utilized for vibration absorption to prevent a connection from turning and loosening under dynamic loads. There are a variety of common types available, each providing different levels of protection to maintain the integrity of a bolted joint. Using the correct type of lock washer reduces the risk of assembly failure, which is a primary safety concern for industrial applications.

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Fasteners Etc., Inc. offers a diverse assortment of lock washers in carbon steel and stainless steel with various plating options like -zinc for enhanced corrosion resistance. We carry both metric and U.S. Imperial (inch) sizes to support all project requirements. While lock washers are a cost-effective option to enhance reliability, some high-stress applications may also require flat washers or lock nuts for a complete fastening solution.

Types of Lock Washers Available:

Split Lock Washers (Spring Lock Washers): Also known as a split ring washer, this coiled option offers vibration resistance by using spring tension to apply pressure against the fastener head. Available in both standard and metric sizes.
High Collar Split Lock Washer: Designed specifically for use with socket head cap screws. The reduced outer diameter allows the washer to fit into countersunk holes or tight spaces under the head.
Internal Tooth Lock Washers: Often called star washers, these feature teeth on the inside edge designed to bite into the screw head. These are the preferred tooth lock washers for smaller head screws or where a flush finish is needed.
External Tooth Lock Washers: These feature teeth on the outside edge to provide maximum grip for large head screws, ensuring the fastener remains secure even under significant stress.
Internal-External Tooth Lock Washers: A hybrid design with teeth on both the inside and outside edges. This creates a secure "bite" between both the fastener and the work surface for superior resistance to loosening.

If you are unsure whether your application requires the bite of a tooth washer or the tension of a spring lock washer, contact an experienced member of our team for guidance on lubrication factors, torque requirements, and product warranty information.

Your Trusted Lock Washer Provider in Illinois

Fasteners Etc., Inc. supplies high-quality lock washers designed to prevent loosening and maintain secure fastening under vibration and stress. As a veteran-owned business based in Illinois, we are committed to providing fast shipping, volume discounts, and outstanding customer service. Trust Fasteners Etc., Inc. as your reliable full-service source for industrial lock washers and fastening solutions.

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