Sirius Plastic Nut Cover Cap Black

The Sirius Plastic Nut Cover Cap Black in M6 is a widely used size suitable for M6 metric nuts, making it one of the most versatile options in the range. From general assembly and joinery to automotive and light fabrication, the M6 size appears across countless everyday applications. Supplied in a pack of 100, it is ideal for both project use and general workshop stock. Each cap fits snugly over the nut with a simple snap-fit action, providing instant protection against moisture and corrosion while delivering a clean black finish that gives exposed fixings a much neater app