Grabber Cement Board Screws meet the USG Durock specification for minimum head diameter of 0.400.

Specifications:

• Gauge: #8
• Length: 1-1/4-in
• Head Type: Wafer with nibs
• Recess Type: #2 Phillips
• Thread Type: Single lead alternating (high-low)
• Coating: GrabberGard

Installation Guidelines:

Use a standard screwgun with a depth-sensitive nose piece. Suggested screwgun specification for optimal performance "" 4 amps minimum and RPM range of 0 to 2,500.

• Install with head flush with board, no need to counter sink.
• Overdriving my result in fastener failure or strip out of the work surface.

• LOX® recess was designed for today's screwguns and for applications where high-torque is required. LOX® will not strip out like most other recesses.
• The wafer head with nibs design provides better holding power in high density and cement board applications. Special nibs self countersink as the screw seats.
• GrabberGard® exterior-grade coating provides additional protection against corrosion in most exterior applications.
• Grabber’s extra sharp 23˚ Streaker® point design starts immediately and is much less likely to flop over.

• Suggested screwgun specification for optimal performance – Size #8, up to 4,000 RPM.
• For metal applications, the fastener must penetrate beyond the material a minimum of three full threads.
• Overdriving may result in failure of the fastener or stripout with the substrate.

• Attaches high density sheathing to wood or light gauge metal. Superior corrosion resistance.