Malco 8X1-1/2 Zip-In Self-Piercing Screws | 1/4" Slotted Hex Washer Head Sheet Metal Screws | Fast & Easy Piercing | Zinc Plated (250 Count)
MPN: HW8X11/2ZT
Minimum order quantity is .
Malco Zip-In 8X1-1/2 Self-Piercing Screws are the zinc-plated, 1/4" slotted hex washer head sheet metal fasteners engineered for fast, precise penetration into thicker gauges. This 250‑count pack is built to speed up your metalwork without compromising strength or holding power.
What makes Zip-In stand out is a meticulously engineered thread design and a controlled heat-treat process. The screw tapers to a fine, sharp point while preserving critical point strength, thanks to a heat-treated tip that’s built to last through repeated installations. A single starting thread runs all the way to the tip, delivering rapid initial bite and dependable penetration. Once the screw starts, a second thread above the point engages after puncture, effectively “drilling in” the fastener twice as quickly and locking the metal together with impressive reliability.
- Unique thread geometry: single starting thread to the tip for powerful initial penetration, followed by a second thread that engages after entry for faster, more secure fastening.
- Advanced heat-treat process: sharp, precise point that maintains strength, reducing cam-out and ensuring consistent performance through heavier gauge sheet metal.
- Faster driving, higher gauge capability: designed to handle thicker sheet metal more effectively than conventional self-piercing screws.
- Corrosion resistance: durable zinc plating guards against rust in standard indoor/outdoor environments.
Ideal applications include HVAC duct installation, metal roofing and siding, enclosure assemblies, and other projects where clean, strong joints are essential and pre-drilling is undesirable. The 1/4" slotted hex washer head provides a secure seating and a low-profile finish, making it easy to drive with common power drivers while delivering a neat, professional look.
Practical tips for best results:
- Align the workpieces carefully to ensure proper joining before driving the screw.
- Use a compatible power driver with an appropriate bit to prevent stripping or cam-out.
- Avoid overtightening—let the self-piercing design do the work and seat the screw flush for a clean finish.
- Designed for heavier gauge sheet metal, so select the length (8 x 1-1/2 inches) that captures both layers securely without over-penetration.
Specifications
- Size: 8 x 1-1/2 inches
- Head: 1/4" slotted hex washer
- Finish: Zinc plated
- Type: Self-piercing sheet metal screw
- Count: 250 pieces per pack
- Brand/Line: Malco Zip-In
Malco Zip-In 8X1-1/2 Self-Piercing Screws are the zinc-plated, 1/4" slotted hex washer head sheet metal fasteners engineered for fast, precise penetration into thicker gauges. This 250‑count pack is built to speed up your metalwork without compromising strength or holding power.
What makes Zip-In stand out is a meticulously engineered thread design and a controlled heat-treat process. The screw tapers to a fine, sharp point while preserving critical point strength, thanks to a heat-treated tip that’s built to last through repeated installations. A single starting thread runs all the way to the tip, delivering rapid initial bite and dependable penetration. Once the screw starts, a second thread above the point engages after puncture, effectively “drilling in” the fastener twice as quickly and locking the metal together with impressive reliability.
- Unique thread geometry: single starting thread to the tip for powerful initial penetration, followed by a second thread that engages after entry for faster, more secure fastening.
- Advanced heat-treat process: sharp, precise point that maintains strength, reducing cam-out and ensuring consistent performance through heavier gauge sheet metal.
- Faster driving, higher gauge capability: designed to handle thicker sheet metal more effectively than conventional self-piercing screws.
- Corrosion resistance: durable zinc plating guards against rust in standard indoor/outdoor environments.
Ideal applications include HVAC duct installation, metal roofing and siding, enclosure assemblies, and other projects where clean, strong joints are essential and pre-drilling is undesirable. The 1/4" slotted hex washer head provides a secure seating and a low-profile finish, making it easy to drive with common power drivers while delivering a neat, professional look.
Practical tips for best results:
- Align the workpieces carefully to ensure proper joining before driving the screw.
- Use a compatible power driver with an appropriate bit to prevent stripping or cam-out.
- Avoid overtightening—let the self-piercing design do the work and seat the screw flush for a clean finish.
- Designed for heavier gauge sheet metal, so select the length (8 x 1-1/2 inches) that captures both layers securely without over-penetration.
Specifications
- Size: 8 x 1-1/2 inches
- Head: 1/4" slotted hex washer
- Finish: Zinc plated
- Type: Self-piercing sheet metal screw
- Count: 250 pieces per pack
- Brand/Line: Malco Zip-In
| Type |
Bulk |
|---|---|
| Length |
1-1/2 In. |
| Diameter |
#8 |