Primesource HW48121LB 8x 1/2" Slotted Hex Washer Head W/Self-Piercing Needle Point

INCLUDES:
• (320) Screws (1 Lb)

FEATURES:
• For sheet metal from 0.0209" to 0.0358".
• Recommended for H.V.A.C., electrical, plumbing, framing, and sheet metal.
• Well defined for maximum holding power and fast driving.
• Fine Thread for steel and Coarse Thread for wood
• Self-Piercing Points
• Meets or exceeds ASTM C-1002 and C-1513
• Is manufactured to Pro-Twist® print specifications
• Manufactured in a factory that meets ISO-9002 and -14001 requirements
• 1018 and or 1022 Steel
• Adheres to the Code listing ICC-ES Evaluation Report ESR-1408
• All zinc plated screws conforms to ASTM F-1941 for corrosion resistance, as tested in accordance with ASTM B-117

SPECIFICATIONS:
• Diameter: 8
• Length: 1/2
• TPI: 15
• Finish: Zinc
• Corrosion: 24 hr. min. B-117
• Washer Diameter: 8.18mm~ 8.84mm
• Thread: Double lead
• Point: Piercing 28°
• Minimum Torsional Strength (Lb): 39


Slotted HexWasher Head Self-piercing needle point for sheet metal applications .0209" – .0358". Twin lead thread assures fast action and reduced driving torque and strip-out. Recommended for HVAC, electrical, plumbing, framing and sheet metal. Zinc Plated -1 lb