Malco 8X2 Zip-In Self-Piercing Screws | 1/4″ Slotted Hex Washer Head Sheet Metal Screws | Fast & Easy Piercing | Zinc Plated (50 Count)

Malco HW8X2ZG
•Combination lead double thread Instantly penetrates and engages in heavy gauge sheet metal and layered light gauge.
•Starting thread machined down to very tip of screw point.
•Look for the Dots! Trademarked & Patented Head Markings indicate one and only genuine Zip-ins.
•A unique thread design and quality controlled manufacture spell the Zip-in difference.
•Zip-in’s sophisticated heat treat process allows the screw to taper to a fine, sharp point without sacrificing critical point strength.
•Zip-in screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-drilling type.

Meet the Malco HW8X2ZG Zip-In Self-Piercing Screws—the fast, reliable choice for sheet metal projects that demand clean entry, strong grip, and lasting performance. Built around a smart two-thread design and a precision heat-treat process, Zip-In screws bite through metal with minimal effort and maximum control.

What makes Zip-In different

• Two-thread penetrating system: A single starting thread forms down to the tip for confident entry, and a second thread above the point engages after initial penetration to drill in double-fast. The result is quicker drives with less wandering and deformation, even on heavier gauge sheet metal.
• Smart heat treatment: The process preserves critical point strength while tapering to a fine, sharp point, delivering consistent piercing power from the first inch to the last.
• 1/4″ Slotted Hex Washer Head: A durable, secure drive profile that seats flush and resists pull-out in demanding installations, with a zinc-plated finish for corrosion resistance.
• Zinc-plated for durability: Protected against the elements, making these screws suitable for outdoor and moisture-prone environments without compromising performance.
• 50-count quantity: A practical packaging size for pros and serious DIYers who regularly work with metal assemblies.

Ideal use cases

• Attach flashing, roofing panels, trim, and light- to medium-gauge metal without pre-punching holes.
• Secure ductwork, enclosures, or HVAC components where reliable penetrating power matters.
• Fasten metal-to-metal applications in workshops, garages, or on-site fabrication, including aluminum and galvanized steel sheets.

How this screws helps your project

• Faster installations: The dual-thread action reduces drive time and minimizes material distortion, letting you seal panels quickly and confidently.
• Better holds on thicker metal: Designed to handle heavier gauges more effectively than typical self-piercing screws, giving you a secure, long-lasting bond.
• Reliability in tough conditions: Zinc plating guards against corrosion, so joints stay strong indoors and out.

Practical installation tips

• Use a high-torque impact driver or a drill with a suitable bit to maintain control and prevent over-tightening.
• Keep surfaces clean and debris-free to ensure the second-thread engagement hits cleanly and the seal remains tight.
• Align components carefully to maximize the benefits of the two-thread design and achieve a flush, professional finish.

Choose the Malco Zip-In HW8X2ZG for projects that demand speed, precision, and a durable metal-to-metal hold. This zinc-plated, 50-count self-piercing screw set is engineered to deliver consistent performance across installations—from quick homeowner fixes to demanding metalwork jobs.