Fine Nylon Insert Lock Nuts

18-8 stainless steel is very corrosion resistant, strong at high temps and have a minimum tensile strength similar to a Grade 2 bolt. Nylon Insert Self-locking Hex Nuts are a kind of lock nut with a nylon collar insert that resists turning. Hi-Line carries 18-8 stainless steel Fine Nylon Insert Lock Nuts in various sizes.