Socket Cap Head Screws Self Tapping Screw Metric M4 M5 M6 Black Steel 8.8
M4 M5 M6 (M4=Thread Diameter 4mm)
Steel ,Black, Grade 8.8
The length of the screws is measured not including the head(For example: M5 x 8mm means thread diameter 5mm, Screw length 8mm).
Use: Grade 8.8 bolt materials, commonly known as high-strength bolts, are suitable for beam column connection of steel frame structures, solid web beam connection, heavy crane beam connection of industrial plants, connection of braking systems and important structures bearing dynamic loads.
Feature: The product is made of 8.8 grade high-strength carbon steel, which has the characteristics of high toughness, good cold and hot working performance, and excellent machinability.
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