5/16-18 Nylon Insert Hex Lock Nuts Locknuts, Stainless Steel 304 Black Finish, 25 PCS

PRODUCT SPECIFICATION A nylon insert lock nut, also referred to as polymer-insert lock nut, or nylon insert (elastic) stop nut, is a common type of locknut comprised of a hex nut with a fixed nylon-filled collar at its back end. The nylon insert does not wear or modify the threads of the mating part, allowing for reusability. The nut is free spinning until the bolt enters the locking insert, at which time the bolt threads then become impressed into the nylon. Type : Nylon Insert Locknuts System of Measurement : Inch Thread Size : 18 Threads per Inch Inner Diameter : 5/16 Inch Material : Stainless Steel 304 Finish : Black Oxide PACKAGE INCLUDED 25 x Nylon Insert Hex Lock Nuts CUSTOMER SERVICE If you have any questions when using, please feel free to contact us by Amazon message.