Nylon nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, retaining nuts, prevailing torque nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread.

• Self-locking nut with nylon collar replaces lock washers preventing unintentional moving bolts from coming out for a more secure and durable hold in furniture craftsmanship, construction, or automotive uses
• Constructed of high hardness 304 stainless steel to prevent warping and deforming
• Assortment of 80pcs fastening nylon lock nuts in 8 common sizes for convenient all-purpose bolts used most ideal for professionals and DIY users