External hexagon screw, actually call a lot of kinds, for example can be called external hexagon screw, also can be called external hexagon bolt.
The outer hexagon screw is used for fastening two connected parts and members with through-holes with a nut.
Outer hexagon screws are more commonly used bolts: there are A class and B class, A class outer hexagon with more, and in the assembly precision requirements are high, as well as larger impact, vibration or cross rate load occasions used more;
The C-class external 66 screws are used for rough surface, assembly accuracy requirements are not high.
This product is custom - made, non - standard tooth, made of green brass cold heading.
PE bag + carton packaging shipping.
Tiansheng has been specializing in customized non-standard production and development for 12 years. Welcome to customize the drawings/samples.