Hi-Lo thread drywall screw, the thread of this kind of gyprock screws is design with a double thread design. The deep threads are designed to bite into the material. The short threads are designed to pull the materials closer and fix them in place. This high-low thread pattern can reduce frictional resistance during installation. Improve the installation speed. And reduce the risk of materials cracking. With higher pull-out resistance, it stays firmly in place and resists loosening over time. This kind of sheettrock screws can connect the wood framing ceiling or high-density board to thine steel studs.

Gypsum screw have bugle or countersunk head, #2 driver. High-low full thread sharp point. They are made of low carbon steel C1022A raw materials.All screws undergo heat treatment to ensure high hardness and consistent quality.

The surface treatments include phosphate and electrc-zinc .

Typical packaging options for drywall screws include:

100pcs/plastic bag
100pcs/small box
1kg/samll box
500pcs or 1000pcs/small box
8000pcs/carton
25KG/ carton
25kg/bag.

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