Specification Brand : uxcell BulletPoint1 : [SIZE & PACKAGE]: The thread size of the nylon Insert hexagonal locking nut is M12, the pitch is 1.5mm, the hexagon width is 18.7mm/0.74", the hexagon height is 11.6mm/0.46", and the height is 12mm/0.47". The package includes 5 nylon insert lock nuts, which can meet your daily needs. BulletPoint2 : [MATERIAL]: Made of 304 stainless steel with oxidation surface treatment, the nylon insert hex lock nuts have rust and corrosion resistance properties. This material has good properties, high temperature resistance, durability, and is not easily deformed, making it suitable for long-term indoor and outdoor use. BulletPoint3 : [FEATURES]: There is a nylon insert in the insert locknut, which is closely combined with the bolt thread. The nylon insert locknut can produce a certain elastic deformation after the bolt is tightened, resulting in frictional resistance, which can prevent the bolt from loosening caused by vibration or other factors. BulletPoint4 : [EASY TO USE]: Nylon insert hex lock nuts are easy to use, insert the bolt into the nut, align the threads, and tighten with a wrench. BulletPoint5 : [WIDE APPLICATION]: Locking nuts are widely used and can be used to repair furniture or household appliances, automobile repair, machinery industry, outdoor facilities, construction, etc. Color : Silver DriveSystem : External Hex ExteriorFinish : Stainless Steel FinishType : Oxidation GradeRating : industrial ItemName : uxcell 5Pcs M12 x 1.5 Nylon Insert Hex Lock Nuts, 304 Stainless Steel Self-Locking Nylon Insert Stop Nut for Industrial Construction Fasteners, Silver&Blue ItemPackageDimensions_Height : 7.2 centimeters ItemPackageDimensions_Length : 1.7 centimeters ItemPackageDimensions_Width : 4.2 centimeters ItemTypeKeyword : hardware-locknuts Manufacturer : uxcell Material1 : Stainless Steel Material2 : Nylon MetalType : Stainless Steel NumberOfItems : 5 NumberOfPieces : 5 PartNumber : f24040700ux0143 ProductDescription : Description: Material - Made of 304 stainless steel with oxidation surface treatment, the nylon insert hex lock nuts have rust and corrosion resistance properties. This material has good properties, high temperature resistance, durability, and is not easily deformed, making it suitable for long-term indoor and outdoor use. Features - There is a nylon insert in the insert locknut, which is closely combined with the bolt thread. The nylon insert locknut can produce a certain elastic deformation after the bolt is tightened, resulting in frictional resistance, which can prevent the bolt from loosening caused by vibration or other factors. Easy to Use - Nylon insert hex lock nuts are easy to use, insert the bolt into the nut, align the threads, and tighten with a wrench. Wide Application - Locking nuts are widely used and can be used to repair furniture or household appliances, automobile repair, machinery industry, outdoor facilities, construction, etc.