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MALCO Hex Head Washer Sheet Metal Screws #8 x 1-1/2 in
MALCOHex Head Washer Sheet Metal Screws

MALCO Hex Head Washer Sheet Metal Screws #8 x 1-1/2 in

The MALCO Self-Piercing Screw (#8 Size, 1 1/2 in Lg) is a steel, zinc-plated, slotted hex washer sheet metal screw (250 PK, MPN HW8X1-1/2ZT) with a 1/4 in drive size.

SKU 3G-OTH-677270

Also listed as: HW8X112ZT · HW8X1 1 2ZT · HW8X1-1-2ZT

Brand
MALCO
Item
Hex Head Washer Sheet Metal Screws #8 x 1-1/2 in
Part Number
HW8X1-1/2ZT
Category
Hex Head Washer Sheet Metal Screws
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Technical Specifications

MALCO
Manufacturer Part Number
HW8X1-1/2ZT
Type
Steel, Zinc-Plated, Slotted, Hex Washer, 250 PK
Lg
1 1/2 in
Drive Size
1/4 in

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MALCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MALCO Self-Piercing Screw (#8 Size, 1 1/2 in Lg) is a steel, zinc-plated, slotted hex washer sheet metal screw (250 PK, MPN HW8X1-1/2ZT) with a 1/4 in drive size.

Frequently Asked Questions

What is a MALCO self-piercing screw used for?

A MALCO self-piercing screw is used to fasten sheet metal without pre-drilling, making it ideal for HVAC ductwork, metal roofing, and general fabrication. The #8 size, 1 1/2 in length, and hex washer head provide secure, flush fastening in steel and aluminum assemblies.

What are the specifications of the MALCO HW8X1-1/2ZT screw?

The MALCO HW8X1-1/2ZT is a #8 size, 1 1/2 in long, steel, zinc-plated, slotted hex washer sheet metal screw. It has a 1/4 in drive size and comes in a 250-piece pack. The zinc plating offers corrosion resistance for indoor and outdoor applications.

Where to buy MALCO self-piercing screws worldwide?

3G Electric supplies and delivers genuine MALCO self-piercing screws worldwide. We handle full logistics and customs clearance, sourcing across 14 industrial departments including fasteners, HVAC, and more. Contact us for availability and delivery to your location.

How to install a self-piercing screw in sheet metal?

Use a power driver with a 1/4 in hex bit. Align the screw perpendicular to the metal surface and drive it straight in. The self-piercing tip cuts its own hole, so no pre-drilling is needed. Avoid over-torquing to prevent stripping the zinc-plated steel head.

Used in

Common applications for MALCO
HVAC ductwork fabrication — Malco MB48A manual straight brake for bending 22-gauge sheet metal up to 48 inches wide.
Roofing and flashing installation — Malco MB48B portable mini brake with angle gauge for on-site bending of roof trim.
Metal roofing assembly — Malco #8 self-piercing screws, 1-1/2 in length, for fastening sheet metal to metal framing.
Ductwork installation — Malco #8 self-piercing screws, 1/2 in length, for securing duct sections without pre-drilling.
General sheet metal construction — Malco #7 self-piercing screws, 1/2 in length, for fastening light-gauge metal.
Field repair and maintenance — Malco manual straight brakes for forming replacement flashings and duct components.
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MALCO Products

3G Electric supplies MALCO hex head washer sheet metal screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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