Malco Zip-In Self-Piercing Screws | 5/16" Slotted Hex Washer Head Sheet Metal Screws | Type A Single Thread | Zinc Plated (1800, #12 x 2")
MPN: HW12X2
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Maximum order quantity is .
The product can be bought in quantity increments of .
The Malco Zip-In Self-Piercing Screws, model HW12X2, bring fast, reliable fastening to thin sheet metal jobs with a single streamlined step. These 5/16 in. slotted hex washer head screws are zinc plated for durability and corrosion resistance, designed to zip through metal without the need for pre-drilling. Packaged in practical quantities, they’re ready for larger projects or ongoing work on ductwork, roofing, or sign fabrication.
What makes these screws stand out
- Self-piercing design eliminates the need for pilot holes on thin-gauge sheet metal, speeding up installations and reducing tool wear.
- 5/16" slotted hex washer head provides a secure seating surface with ample bearing area, while the washer helps seal and distribute load to resist pull-out.
- Type A single thread is optimized for metal-to-metal fastening, delivering clean, fast cutting and strong clamping in one motion.
- Zinc plating offers improved corrosion resistance for longer service life in exposed or humid environments.
- Flexible options—longer lengths and multi-piece quantities are available to fit a wide range of applications, including the 1800-piece packs referenced in the product title.
Ideal uses and scenarios
- HVAC ductwork assemblies and metal enclosure builds where quick, reliable fastening is essential.
- Thin-gauge roofing, siding, and flashing installations where a clean finish and strong hold matter most.
- Sign mounting, metal framing, and lightweight automotive body repairs that require a dependable, easy-to-drive fastener.
- Any project that benefits from a fast, pre-drilled-free installation with a sealed washer under the head.
How to use
- Align workpieces and position the screw where you need fastenings to occur.
- Use a compatible hex driver to drive the screw; the self-piercing tip will begin cutting through the metal as you apply steady pressure.
- Drive until the washer seats flush and the head sits evenly; avoid excessive torque to prevent damage to the washer or material.
- For thicker assemblies, consider using a longer length option from the available selection to ensure full engagement.
Specifications at a glance
- Head and drive: 5/16" slotted hex washer head
- Thread style: Type A single thread
- Material finish: Zinc plated for corrosion resistance
- Package options: Longer lengths and multi-piece quantities available, including 1800-piece packs
- Application: Self-piercing sheet metal screws suitable for metal-to-metal joins
Description
The Malco Zip-In Self-Piercing Screws, model HW12X2, bring fast, reliable fastening to thin sheet metal jobs with a single streamlined step. These 5/16 in. slotted hex washer head screws are zinc plated for durability and corrosion resistance, designed to zip through metal without the need for pre-drilling. Packaged in practical quantities, they’re ready for larger projects or ongoing work on ductwork, roofing, or sign fabrication.
What makes these screws stand out
- Self-piercing design eliminates the need for pilot holes on thin-gauge sheet metal, speeding up installations and reducing tool wear.
- 5/16" slotted hex washer head provides a secure seating surface with ample bearing area, while the washer helps seal and distribute load to resist pull-out.
- Type A single thread is optimized for metal-to-metal fastening, delivering clean, fast cutting and strong clamping in one motion.
- Zinc plating offers improved corrosion resistance for longer service life in exposed or humid environments.
- Flexible options—longer lengths and multi-piece quantities are available to fit a wide range of applications, including the 1800-piece packs referenced in the product title.
Ideal uses and scenarios
- HVAC ductwork assemblies and metal enclosure builds where quick, reliable fastening is essential.
- Thin-gauge roofing, siding, and flashing installations where a clean finish and strong hold matter most.
- Sign mounting, metal framing, and lightweight automotive body repairs that require a dependable, easy-to-drive fastener.
- Any project that benefits from a fast, pre-drilled-free installation with a sealed washer under the head.
How to use
- Align workpieces and position the screw where you need fastenings to occur.
- Use a compatible hex driver to drive the screw; the self-piercing tip will begin cutting through the metal as you apply steady pressure.
- Drive until the washer seats flush and the head sits evenly; avoid excessive torque to prevent damage to the washer or material.
- For thicker assemblies, consider using a longer length option from the available selection to ensure full engagement.
Specifications at a glance
- Head and drive: 5/16" slotted hex washer head
- Thread style: Type A single thread
- Material finish: Zinc plated for corrosion resistance
- Package options: Longer lengths and multi-piece quantities available, including 1800-piece packs
- Application: Self-piercing sheet metal screws suitable for metal-to-metal joins
Additional Information
| Type |
Bulk |
|---|---|
| Length |
2 In. |
| Diameter |
#12 |
Malco Zip-In Self-Piercing Screws | 5/16" Slotted Hex Washer Head Sheet Metal Screws | Type A Single Thread | Zinc Plated (1800, #12 x 2")
$319.99
Bulk / 2 In. / #12