10pcs Waterproof Dome Nylon Hex Nut Bolt Cover Cap Protector Protection Cap M6/M8/M10/M12

10pcs Waterproof Dome Nylon Hex Nut Bolt Cover Cap Protector Protection Cap M6/M8/M10/M12 Description: Model:M6/M8/M10/M12 Material:nylon Color:black Size: Apprex. As the picture shows Quantity:10pcs Feature: Metric hex nut nylon cover Made from high quality nylon, odorless, non-toxic, good insulativity. Providing the all-around protection for the nuts with waterproof and dustproof function, aviod the nuts from rusting efficiently prolong the lifetime Easy to install and remove fit for railway, gas pipeline and valve, buldings balustrade and mechanical equipment Package included: 10X Nylon Nut Cover