Drywall Black Screw Description

 

A Drywall Black Screw is a specialized fastener designed specifically for securing gypsum board (drywall/plasterboard) to wood or metal studs. It is typically made of hardened steel with a black phosphate coating for corrosion resistance. It features a Bugle Head (which sinks without tearing the paper surface) and a Phillips drive, and comes in both coarse and fine thread types.

 

 

 

Typical Dimensions (varies as per standard):

Size Chart	Diameter (Gauge)	Length (Inches / mm)
#6	3.5mm	1" (25mm), 1-1/4" (32mm), 1-5/8" (41mm)
#7	3.9mm	1-1/4" (32mm), 1-5/8" (41mm), 2" (50mm)
#8	4.2mm	1-5/8" (41mm), 2" (50mm), 2-1/2" (64mm), 3" (76mm)

 

Key Features:

• Self-Tapping/Fast Installation – sharp points and fine/coarse threads allow quick penetration without pre-drilling.

• Bugle Head – the conical, rounded shape ensures the head sits flush and creates a neat dimple in the drywall surface without tearing the paper facing, making it easy to conceal with joint compound.

   

• Deep Threads (Coarse/Fine) – deeper threading than standard screws ensures a strong, secure hold in soft drywall material and reduces the risk of "screw pops."

  • Coarse Thread (W-Type): Best for wood studs.

     

  • Fine Thread (S-Type): Best for metal studs.

     

• Phillips Drive – most common drive type for use with automated screw guns and depth-setting bits.

• Black Phosphate Coating – provides basic protection against rust, suitable for interior, non-wet environments.