Meet Zip-In power with Malco HW8X2ZWT — an 8x2 white Zip-In self-piercing screw designed for fast, clean fastening into sheet metal. Crafted with a unique thread design and a precision heat-treat process, these screws taper to a fine, sharp point that begins penetrating immediately without pre-drilling, while maintaining essential point strength for reliable long-term use.

Zip-In technology that actually saves time

• Single starting thread runs all the way to the tip, creating the source of Zip-In's penetrating power.
• Second thread above the point engages after initial penetration to drive the screw faster and with better bite.
• Faster driving performance and a greater capacity for fastening heavier gauges of sheet metal than other self-piercing screws.
• White zinc plating provides durable corrosion resistance while keeping the fastener visible for easier inspection in metal assemblies.

Why this matters on the job

• Achieve secure metal-to-metal joints in fewer steps, reducing installation time on commercial and residential metalwork projects.
• Ideal for panels, flashing, and interfaces where a strong, clean pierce is required without pre-drilling.
• Premium thread geometry means fewer stripped holes and more consistent seating across a range of sheet metal gauges.

Ideal applications

• Metal roofing panels, trim, flashing, and siding assemblies
• HVAC ductwork, metal enclosures, and lightweight metal assemblies
• Projects needing quick, reliable fastening in medium-to-heavier gauge sheet metal

Specifications at a glance

• Size / type: 8x2 inches, self-piercing screw
• Head: 1/4" slotted hex washer head
• Finish: White zinc plated
• Drive: Slotted
• Quantity: 250 screws per package
• Model: Malco HW8X2ZWT

Practical tips for best results

• Align parts carefully and drive straight to ensure the second thread engages cleanly after initial penetration.
• Use a compatible slotted bit and moderate torque to prevent over-tightening, which can affect the washer seal.
• For outdoor or high-humidity environments, rely on the zinc-plated finish to maintain corrosion resistance over time.