M12 High Collar Split Lockwashers / Low Carbon Steel / Black Oxide / DIN 7980
- Steel
- Black Oxide
- DIN 7980
$196.64
$0.281 / pc
Package of 700
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Product Description
M12 High Collar Split Lockwashers / Low Carbon Steel / Black Oxide / DIN 7980
M12 lock washer in Low Carbon Steel, black oxide finish. For maintaining tension and resisting loosening under vibration.
- CARBON STEEL — strong and inexpensive, but it depends entirely on its plating for corrosion protection
- BLACK OXIDE — a conversion coating that adds almost no dimension, so thread fit is unchanged; it is a mild rust inhibitor when oiled, not a weather coating
Frequently Asked Questions
Are lock washers effective at preventing loosening?
Modern engineering testing shows split lock washers can actually reduce clamp load under vibration. For critical applications, use nylon insert lock nuts or thread locker (Loctite). Tooth lock washers (internal/external star) typically perform better than split washers in vibration-prone applications.
Does Black Oxide finish provide corrosion protection?
Black Oxide provides mild corrosion resistance through a controlled oxidation process. It is dimensionally stable (no plating buildup), will not chip or flake, and is suitable for indoor use. For outdoor or wet environments, additional oil coating or a different finish (zinc, stainless) is recommended.
$196.64
$0.281/pc
High Collar Split Lockwashers / Steel / Black Oxide
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M12 High Collar Split Lockwashers / Low Carbon Steel / Black Oxide / DIN 7980
SKU: MD12WSH-700
Technical Specifications
Material
Steel
Finish
Black Oxide
Thread Direction
Unthreaded
Standard
DIN 7980
Country of Origin
Import
Washer Type
High Collar
Inside Diameter
12.2 mm
Outer Diameter
18 mm
Thickness
2.5 mm
Measurement System
Metric
SKU
MD12WSH-700
https://www.ecomfasteners.com/products/m12-high-collar-split-lockwashers-steel-black-oxide-din7980 · Printed