Nut Assortment Kit Multiform of top grade 304 stainless steel nylon lock nuts in 7 common sizes for general use. convenient and handy making it very ideal for professionals and do-it-yourselfers to use. Made with industrial-strength nylon collar capable enough to replace lock washers and prevent bolts from being exposed and coming out providing better security and a firm grip. Works better compared to lock washers. lock as it is made from non-corrosive material. Heavy duty polymer insert nuts are highly resistant to turning. preventing lock nuts from weakening and loosening under vibration and torque. which reduces the resistance of the hold. Guaranteed to stay intact and in firm grip making it virtually indestructible. Various sizes of nuts: M3 M4 M5 M6 M8 M10 M12.to meet different needs.Nylon Nuts are arranged in a storage box.which makes it easy for you to find the series and to avoid loss in case of need. Application:The anti-loosening nylon nut is a new type of high anti-vibration anti-elastic parts.used in such as folding bed.wardrobe.miner.mower. motor.textile machine and so on.