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

MALCO #8 x 1/2 in Hex Washer Sheet Metal Screw

The MALCO Self-Piercing Screw (#8 Size, 1/2 in Lg) is a steel, zinc-plated, slotted hex washer sheet metal screw supplied in a 1,000 PK. With a 1/4 in drive size (MPN HW8X1/2ZT), it is designed for fastening sheet…

SKU 3G-OTH-677266

Also listed as: HW8X12ZT · HW8X1 2ZT · HW8X1-2ZT

Brand
MALCO
Item
#8 x 1/2 in Hex Washer Sheet Metal Screw
Category
Hex Head Washer Sheet Metal Screws
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MALCO
Manufacturer Part Number
HW8X1/2ZT
Type
Steel, Zinc-Plated, Slotted, Hex Washer, 1,000 PK
Lg
1/2 in
Drive Size
1/4 in

Technical Documents

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

Product Description

The MALCO Self-Piercing Screw (#8 Size, 1/2 in Lg) is a steel, zinc-plated, slotted hex washer sheet metal screw supplied in a 1,000 PK. With a 1/4 in drive size (MPN HW8X1/2ZT), it is designed for fastening sheet metal without pre-drilling.

Frequently Asked Questions

What is the MALCO self-piercing screw used for?

The MALCO self-piercing screw is used for fastening sheet metal without pre-drilling. It is ideal for HVAC ductwork, metal roofing, and general metal fabrication where a secure, corrosion-resistant joint is needed. The zinc-plated steel construction and hex washer head provide reliable holding power.

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

The MALCO HW8X1/2ZT is a #8 size, 1/2 in long self-piercing screw made of steel with a zinc-plated finish. It features a slotted hex washer head with a 1/4 in drive size and comes in a 1,000 PK. The MPN is HW8X1/2ZT.

Where to buy MALCO self-piercing screws worldwide?

3G Electric supplies MALCO self-piercing screws worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order the HW8X1/2ZT or other MALCO fasteners for your sheet metal applications.

How to install a self-piercing screw without pre-drilling?

To install a self-piercing screw like the MALCO HW8X1/2ZT, use a power driver with a 1/4 in slotted bit. Align the screw perpendicular to the metal surface and drive it steadily. The self-piercing tip cuts through the material, while the hex washer head provides a flush, secure fastening.

Used in

Common applications for MALCO
HVAC duct fabrication — MALCO Mini Brake (MB48A) for bending sheet metal up to 48 inches wide
Roofing — MALCO Asphalt Shingle Cutter Drill Attachment (TSS1) for cutting shingles with a drill
Vinyl fence installation — MALCO Vinyl Fence Notcher (VFN1) for creating louvered notches in vinyl
Cable management — MALCO Cable Tie Tension Tool (TY4G) for securing nylon ties in electrical installations
Sheet metal cutting — MALCO Snip Blade (M14ARB) for replacement in snips cutting stainless steel
Ductwork assembly — MALCO Duct Cutting Tool (DT15C) for cutting and trimming duct materials

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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