Plastic-pin of the pin-lock accommodate thread form and locks with friction, simple assembly with a regular hexagon nut. Multifunctional application: safety for different bolted joints such as rear axles, pivot shafts, yokes etc. Innovative pin-lock secure high locking characteristics. A 20 gram lightweight axle nut in a shapely design. Compliments the TCA chain adjuster kit. Made of titanium Ti-6Al-4V. For rear axles only..