M5 x 8mm Stainless Steel Cone Point Hex Socket Set Grub Screw Silver Tone 20pcs
Specifications: Material: Aluminum Teeth: 20T Bore: 6.35mm Total Size: 16*16*16mm(L*W*H) Features: Suits to the timing belt which is 6mm width. This synchronous aluminum belt pulley is for 3D printer. Package Content:20 X Timing Pulley.