Countersunk Head Drill Tail Screw
【Mechanical Properties】 (Executive Standard: GB/T 3098.11 - 2002)
【Surface Coating】 (Executive Standard: GB/T 5267.1 - 2002)
【Mechanical Properties】 (Executive Standard: GB/T 3098.11 - 2002)
【Surface Coating】 (Executive Standard: GB/T 5267.1 - 2002)
We use Xingtai Steel's 1022A raw material to ensure that only good materials can produce excellent products.
The bottom of the washer is designed with grooves and special chamfers, ensuring tighter locking while reducing the risk of breaking the cap.
The blade is designed with a lightning-shaped pattern, providing more precise positioning and faster penetration.
The high frequency of mold replacement ensures stability in appearance and performance.
A special carburizing heat treatment process is used, ensuring both hardness and toughness.
High-quality electro-galvanized zinc coating provides better corrosion resistance.