Nut with Black Nylon Cap Set M5/ M6/ M8 (120-Piece)

Material: Stainless Steel
Colour: Silver & Black

M5/ M6/ M8
12.9 Grade Steel

It uses a nylon cap insert, therefore reducing its inner diameter. This deforms over the mating thread, locking the bolt and resistant to vibration

It can be used to assist in sealing the bolt thread against liquids like petrol, oil, water etc.

Corrosion resistant