碳钢盖螺母

产品介绍

One end of the cap nut is a closed structure similar to a hat, which can cover the exposed part of the bolt when in use. Prevent the screw from rubbing, and can effectively prevent the intrusion of water and various corrosive substances, and slow down the speed of oxidation and rust of the screw.

产品信息

Productname: Carbon Steel Cap Nuts

Grade:  4.8 8.8 10.9 12.9 

表面处理：发黑、镀锌、达克罗 ETC。

Material: Carbon Steel

Specification: M4 -M24

Standard:  GB/T923 DIN1587