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What is a DIN 127-B A4 Stainless Split Lock Washer?
DIN 127-B split lock washers are metric spring lock washers featuring a split ring with a slightly offset or helical shape. When installed beneath a nut or bolt head, the washer provides spring tension and creates resistance against loosening caused by vibration and movement.
The DIN 127-B design features a square-ended split ring, providing a compact locking washer for general-purpose metric fastening. These washers are installed under the head of a bolt or beneath a nut and are commonly used with standard metric machine screws, bolts, and nuts. They are also known as split lock washers, spring lock washers, helical spring washers, split ring washers, and metric lock washers.
What material is a DIN 127-B Split Lock Washer made from?
These DIN 127-B split lock washers are manufactured from A4 stainless steel (SAE Type 316 stainless steel), commonly referred to as marine-grade stainless steel. A4 stainless steel provides excellent resistance to corrosion, saltwater, chlorides, moisture, and many chemicals, making it particularly well suited for demanding outdoor and marine environments.
The natural stainless steel finish provides long-term corrosion resistance without requiring an additional protective coating. A4 stainless steel also provides a clean, professional appearance for visible fastening assemblies.
Why choose an A4 Stainless DIN 127-B Split Lock Washer?
A4 stainless DIN 127-B washers provide a simple and compact method of adding spring tension and resistance to loosening to a threaded assembly. The split design creates a spring effect when compressed, while the edges of the washer provide additional resistance between the fastener and mating surface.
The A4 / 316 stainless steel construction makes these washers especially useful where corrosion from saltwater, humidity, or outdoor exposure is a concern. They are an excellent choice for applications where both mechanical locking and long-term corrosion resistance are important.
Where are DIN 127-B A4 Stainless Split Lock Washers commonly used?
DIN 127-B A4 stainless split lock washers are commonly used in marine equipment, boats and yachts, dock hardware, offshore equipment, coastal infrastructure, automotive assemblies, motorcycles, agricultural machinery, pumps, valves, outdoor equipment, HVAC systems, electrical equipment, machinery, architectural hardware, renewable energy equipment, and general OEM manufacturing.
