China Quality DIN571 carbon steel Q195 Coach Screw Hexagon head Wood Screws Lag bolt with Bright Zinc plated

DIN 571 Thick rod products include Screw and thread, one end of the screw is formed with a pointed head. The pitch is relatively large. It is a bit like a chipless tap. It can be directly screwed in without tapping. The thread lead is larger than the mechanical thread, and the thread length is greater than or It is equal to 0.6 of the specification length, the thread angle is 60degree, and the product specification is M4-M20, etc.

DIN571 hexagon head wood screws are a kind of mechanical parts used for fastening connections, and they are widely used. Its characteristics: a wide variety of specifications, different performance and uses, and a high degree of standardization, serialization, and generalization. On all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, tools, instruments, meters and supplies, you can see all kinds of self-tapping nails.