Duro Dyne - 15127 - PPB8x1/2 - 1/4" Head x #8 x 1/2" 10,000 Pack, Self-Drilling and Self-Tapping Screw

Item Number: TP812DP10MB  MFR Part Number: 015127


PPB8x1/2 - 1/4" Head x #8 x 1/2" 10,000 Pack, Self-Drilling and Self-Tapping Screw
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Several common methods such as rivets, screws, and spot welding are used to fasten materials to ductwork. Three types of screws are most often used. The first is self-tapping only and requires a hole to be drilled before the screw can be utilized. The others are both self-tapping but also create their own holes. Self piercing screws have very sharp points which act much like a scratch awl in making a small opening in the steel for the threads to engage and work the sheet metal into a coned threaded hole. These work well for light gage steel.Self-drilling screws have an integral drill point which creates a large hole for tapping. This allows the screws to be used on heavy gages of steel. The maximum total thickness of steel that the self-drilling screw can be used with is determined by the drill point.

  • Conformance - Meets or exceeds IFI-113 (Revised: August 1, 2007) specifications for Type BSD screws
  • Material - Cold heading quality steel wire
  • Corrosion Resistance - Zinc plated
  • Hardness - Case hardened to Rockwell C52 - 58
  • Head Configuration - Hexagonal unslotted

California residents: see Proposition 65 Warning

Weight42 Pounds (Lb)
Width7 Inches (In)
Height10 Inches (In)
Country of OriginTWN
Length9.5 Inches (In)
BrandDuro Dyne