What Is a Barrel Nut?

The cover nut is a hexagonal nut with a cover as the name implies.This cover's role is to fasten the exposed part of the cover to prevent moisture or other corrosive substances from entering it and play a role in preventing rust, thereby improving itself and the connecting parts. Use time.

Cap nut

Right!

The cover nut is a hexagonal nut with a cover as the name implies.This cover's role is to fasten the exposed part of the cover to prevent moisture or other corrosive substances from entering it and play a role in preventing rust, thereby improving itself and the connecting parts. Use time.

National Standard for Cap Nuts

GB / T 802.1 combined cap nut

GB / T 802.2 Hex Cap Nut Welded

GB / T 802.3 Hex Flange Face Cover Nut Welded

GB / T 802.4 Hex low spherical cap nut welded type

GB / T 802.5 Hexagonal lock cap nuts with non-metallic inserts, welded type

GB / T 923 hexagon cap nut ^[1]