Dense Board Drywall Screw Black Phosphate

Description

**Features**
*Manufactured to JIS B1125 (1995) and independently tested to IFI specification ASTM C1002-89.|*25 degree Super Sharp (SS) point for ease of penetration.|*Coarse thread with reverse thread under the head to help countersinking|*Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility.|*Made from C10-18 Steel.|*Cosmetically plated in black phosphate.|*Full batch-traceability to the original steel mill certificate.|*Sold in one-piece strengthened laminated TIMco branded boxes for market appeal and quality recognition.|*Designed to pierce and drill into 0.9 mm of metal channel. For larger gauge channel self-drilling drywall screws are recommended.|*Bar-coded to assist in sales and stock control.