Stainless Steel Nylon Insert Hex Lock Nuts 4-40 6-32 8-32 10-32 1/4-20 5/16, 3/8
Crafted from high-quality 18-8 / A2 Stainless Steel, these lock nuts are engineered to provide superior durability and resistance to corrosion. Nylon insert lock nuts, also known as nylock nuts, are a type of prevailing torque locking nut.