Specification Brand : uxcell BulletPoint1 : [M8 Metric] - Thread Dia: M8; Thread Pitch: 1.25mm BulletPoint2 : [Size] - Width: 13mm/0.51"; Height: 8mm/0.31" BulletPoint3 : [Material] - Made of 304 stainless steel, high hardness, corrosion resistance, oxidation resistance, and durability to use. BulletPoint4 : [Feature] - With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque after long-term use, and have a good fastening effect. BulletPoint5 : [Application] - Great for replacing broken or missing nuts. Widely used for repairing furniture or household appliances, automobile, industries, workshops, engineering machinery, ship, DIY, handicrafts, etc. Color : Silver DriveSystem : External Hex ExteriorFinish : Stainless Steel FinishType : Silver GpsrSafetyAttestation : 1 ItemName : uxcell Hex Lock Nuts - M8 x 1.25mm Stainless Steel Nylon Insert Self-Locking Nuts for Fasteners, 25Pcs Silver Tone ItemPackageDimensions_Height : 10.16 centimeters ItemPackageDimensions_Length : 0.762 centimeters ItemPackageDimensions_Width : 5.588 centimeters ItemTypeKeyword : hardware-locknuts Manufacturer : uxcell MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType : Stainless Steel ModelNumber : a18111300ux0044 NumberOfItems : 25 NumberOfPieces : 25 PartNumber : a18111300ux0044 ProductDescription : Descriptions: Made of 304 Stainless Steel, high hardness and corrosion resistance. Using nylon inserts, these lock nuts greatly reduce loosening under vibration and torque. Used in conjunction with bolts, washers, or screws as fasteners when mechanically joining materials together. Can be widely used in the machinery industry, instruments, electronic products, garage, home appliances, furniture, ship assembly, etc.