You can connect more than one together to create your required pin numbers (for example you can connect two pieces from it to create 4pin terminal block)
Material : Steel Pack Quantity : 1 Type : Blind Rivets
Complete kit includes all assembly hardware. Precise smooth motion for light to medium duty applications ie: 3D Printer. Flat surface with a V shaped outer edge allows the wheel to center ride in the track of V-Slot Linear Rail and C-Beam Linear Rail . Flat profile designed to work effortlessly with a belt on a belt and pinion system as well as lead screw and belt driven systems.
This is a kit of stainless steel V wheels that can run smoothly on V-shaped rails or tracks. It has four ball bearings, two shims, and a lock nut for each wheel. It is suitable for CNC machines or 3D printers.
SCS8UU 8mm Aluminum Linear Motion Ball Bearing Slide Bushing For CNC.