DescriptionAnti backlash spring loaded nut compact, large load carrying capability, rustproof and long service life. Smooth, quiet, low friction,and low maintenance, very suitable for 3D printer Z-axis. Precise and accurate linear motion, large mechanical advantage.Features- Color: Black. - Material: Stainless steel. - Size: 5.00X4.00X2.00cm/ 1.97X1.57X0.79in ch. - Non slips, anti-corrosion, wear resistance. Easy to use, no need to process. - Should be used with screw rod for step motor, machine tool guide rail and other equipment. - The weight is lighter than other nuts, more wear-resistant, corrosion-resistant, insulated. - POM trapezoidal nut, an essential accessory for 3D printer, insulated, non-magnetic, quiet, high strength, high tensile strength and compression resistance. - Lead screw set, compact, large load carrying capability, rustproof and long service life.