A Bugle Head Screw with Twin Lead Spaced Thread; Will Drive Easily Through Drywall Drill a Hole in a Steel Stud up to 14 Gauge Thick and Form its Own Mating Thread; Can also be Used for Attaching Plywood or Insulation Board to 14 Gauge Metal

Specifications:

Head Style: Bugle
Drive Style: Phillips
Nominal Diameter: #8
Drill Point Size: #2
TPI: 15
Length: 2-5/8 Inch
Material: Steel
Finish: Black Phosphate