Specification AgeRangeDescription : adult Brand : Surprecision BulletPoint : Guía BulletPoint1 : T-type threaded rod diameter: 18mm(0.71"). Length of the lead screw: 2500mm(98.43"). Pitch: 4mm(0.16"). Lead: 4mm(0.16"). Nut material: brass BulletPoint2 : Material of the lead screw: 304 stainless steel. Not easy to rust. Nut material: pure copper.Wear-resistant,high-temperature resistant,durable and has strong thermal conductivity BulletPoint3 : Fine manufacturing. Clear screw thread. Nut fit tightly. Excellent static and dynamic stiffness. Accurate linear motion. Smooth and smooth sliding BulletPoint4 : Freely customize DIY. You can freely customize the size of each component. Wide of of applications, can be used in 3D printers, stepper motors, CNC machine tools, engraving machines and other equipment. BulletPoint5 : Package includes: 1x T18 2500mm lead screw, 1x nut Color : Pitch 2mm Lead 2mm ExternallyAssignedProductIdentifier : 9184672670271 ItemName : Surprecision T18 18mm Lead Screw 2500mm/98.43" with Brass Nut for 3D Printer Machine Z axis (Picth of Screws: 4mm, Lead: 4mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : linear-motion-lead-screws Manufacturer : Surprecision Material : metal ModelName : HXPHNHPU ModelNumber : HXPHNHPU NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : SP-T18*4/4-2500-CU-NUT-US ProductDescription : Note: 1. Customized order is accepted; 2. Due to different measuring tools, may exist slightly differences in length, but it won't affect the use. 3. After receive the package, please check the product at first. If there any problem, let us know in time, so that we can provide after-sales services for you.