Detail & Specs
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Metric Black Stainless Steel Belleville Washer, "M" Medium Outer Diameter
Ribbed / "Rip Lock" Pattern
Belleville washers have a concave shape to maintain compressed tension. The Rip-Lock pattern on the top surface enhances the locking force and further prevents against loosening due to vibration or pressure.
Belleville washers can be used in tandem, one at the nut end and one at the bolt head end of the fastener connection.
Finish: Black Oxide
- Abrasion resistant, does not peel, chip or rub off
- Reduces friction, prevents galling
- Does not change the strength of the stainless steel
- Practically no dimensional change to base fastener
- The spray applied during the coating process wears off over time, revealing an attractive matte black finish
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel meets 96 hours of resistance in a 5% salt spray (fog) test in accordance with ASTM B117. We recommend using stainless steel installation tools to prevent extraneous rust.
Stainless steel disc spring washers are commonly used in damp environments. They are popular across a wide range of industries: automotive, agriculture, architectural, sanitation, food processing, clean energy, etc.
Also known as serrated conical, coned-disc, cupped spring lock washer
Specification
AFNOR NFE 25-511, "M" Medium Form (Most Common)
French National Standard
Special Bulk Order Variations
Additional Materials: A4 / 316 Stainless Steel
Alternative Bulk Forms: DIN 6796 Non-Serrated Conical Spring Washer
