Material: High Quality Grade 8 Carbon Steel, medium-strength steel hex Locknuts, strong enough for use in most machinery and equipment.
Package Includes: 50 PCS; Hex Drive Size: 8mm
Black zinc plated steel locknuts are a good option in dry environments. The zinc plating prevents the steel from corroding until the plating wears away.
The nylon insert also won't damage the threads on your bolt. All are reusable, but their holding power lessens with each use. Pair them with compatible Class 8.8 metric bolts.
Description
M5 Hex Locknuts 50 pack, Black Zinc Plated Carbon Steel Hexagon Head Lock Nuts Locknuts, Black