Specification AgeRangeDescription : Adult Brand : Nurnesy BulletPoint : zinc plated BulletPoint1 : [Aluminum Alloy Made] Crafted from aluminum alloy, this shaft stop collar is lightweight yet sturdy, not easy to be broken or damaged. BulletPoint2 : [Seamless Integration] Designed to perfectly mesh with the shaft, this linear rail stop collar ensures easy installation and a tight fit, enhancing stability. BulletPoint3 : [Secure Fastening] Equipped with a M4 fixing screw, the limit fixing ring securely clamps onto the shaft without causing damage, providing and stable fixation. BulletPoint4 : [Shaft Fixation] These shaft collars are used for linear rail shaft fixation and positioning, ideal for DIY CNC machine tools. Featuring 12mm inner diameter, 30mm outer diameter, 10mm thickness. BulletPoint5 : [ Prevention] Its is to oxidation and , ensuring long lasting performance even in demanding environments. Color : 8 sets EducationalObjective : Imagination Development ExteriorFinish : Zinc ExternallyAssignedProductIdentifier : 9016184205293 IncludedComponents : No ItemName : 4 Pieces Linear Rail Shaft Collar 12mm ID 30mm OD 10mm Thickness Aluminum Alloy Shaft Limit Fixing Ring with M4 Screw ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : setscrew-shaft-collars Manufacturer : Nurnesy ManufacturerMinimumAge : 48 Material : Stainless steel ModelName : PADGZQGRZ258 ModelNumber : Nurnesyova0tpd9hf NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Nurnesyova0tpd9hf ProductDescription :