Traxxas 5145 Revo Screw pin, 4x15mm (6)

Screw pins for HD Traxxas Driveshafts as found on Revo and Maxx trucks 

Traxxas Revo Screw pin, 4x15mm (6)

These fit other applications such as custom drive shafts and transmissions as long as they have 4mm threads, the pins can be cut to length for custom applications {dremel and safety equipment required}