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Low Profile Split Lock Washer

A4 Stainless High Collar

DIN 7980

SKU: 00-Y7980-A4
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Low Profile Split Lock Washer - A4 Stainless DIN 7980

Small Outer Diameter / Low Profile High Collar Split lock washers are designed for use with socket head bolts, cheese head screws or other threaded fasteners with a small head diameter.

They exert a spring force between the head of the fastener and the parent material, increasing friction and providing resistance against rotation / loosening from vibration.

.Also known as high collar split lock washer, metric helical spring steel lock washer, single coil square section spring washer, spring lock washer for cylindrical head screws.

Not to be used with reverse thread (left hand) fasteners.

Material: A4 Stainless


A4 / 316 Stainless Steel fasteners are "marine grade" corrosion resistant; suitable for salt water applications. A4 fasteners also offer increased resistance to chemicals when compared with A2 stainless fasteners.


Commonly used in wet environments. Popular across a wide range of industries: automotive, agriculture, photographic, medical / surgical, food processing, robotics, architectural detailing, construction, HVAC, healthcare, sanitary, transportation, clean energy, etc

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