1. Precautions for using Drywall screws hardware

Applicable environmental restrictions → Only suitable for dry indoor environments (such as living rooms and bedrooms). → Avoid using in humid areas such as bathrooms and kitchens (the black phosphate layer has weak anti-rust performance and is easy to rust). Collated drywall screws matching keel type → Wooden keel: No pre-drilling is required, just use it directly. → Light steel keel: Use pointed self-tapping screws (ordinary black phosphate drywall screws may slip), or use an electric drill to pre-drill guide holes on the keel. Electric drill operation specifications → Adjust the speed to medium and low speed (1500-2500 rpm) to prevent high-speed friction from burning the black phosphate layer. → Use a cross drill bit (PH2 specification) to ensure that it is fully embedded in the nail groove to avoid slipping. black drywall screws penetration depth control → The black drywall screws head needs to sink 0.5-1mm into the surface of the gypsum board, and it cannot protrude or sink too deep (otherwise it will damage the paper surface). → It is recommended to use an electric drill clutch (adjust to mid-range torque) to stop automatically to prevent penetration. Anti-rust treatment → After the hardware drywall screws head is sunk, it must be covered with anti-rust putty to isolate it from the air and prevent oxidation and rust.

【Screw Drywall Quality Materials】These screws are made from high quality steel Drywall Screw and black phosphate finish that offers better corrosion resistance than the commonly produced black oxide.The sharp point and thread allows you to drive them fast and to complete your project efficiently. Drywall Screw The bugle head allows for quick and easy countersinking