DIN931/DIN933 hex bolt and nut steel hex cap screw bolt
|Material:||Low carbon steel/medium carbon steel/alloy steel|
|Finish:||black/zinc plated/hot dip galvanized|
|Mark:||According to customer’s requirement|
|Delivery time:||Normally in 30-40 days.|
|Quality:||Top high quality.|
|Package:||Cartons&pallets or according to customer’s requirement.|
Measure and process using precision machine tools and measuring tools under strictly controlled environmental conditions.
High-quality carbon steel(35#/45#)
With long life, low heat generation, high hardness, high rigidity, low noise, high wear resistance and other characteristics.
☆ The use of high-quality carbon steel steel, after precision processing and forming, greatly improves the user experience.
Black is a common method for metal heat treatment. The principle is to make an oxide film on the metal surface to isolate the air and achieve rust prevention. Blackening is a common method for metal heat treatment. The principle is to make an oxide film on the metal surface to isolate the air and achieve rust prevention.