# Malco #7 x 1/2 in. External Hex Flange Hex-Head Sheet Metal Screw (50-Bag)

**Brand:** [Malco](https://shop.coreranger.com/brands/Malco)
**Model #:** HDZD
**SKU:** HD-100137289
**Price:** $6.88 · in stock
**URL:** https://shop.coreranger.com/product/malco-7-x-1-2-in-external-hex-flange-hex-head-sheet-metal-screw-50-bag-100137289

## Specifications

| Spec | Value |
|---|---|
| Size | #7 |
| Features | ACQ Rated |
| Head Style | Hex Head |
| Returnable | 90-Day |
| Drive Style | Hex |
| Screw Length | 1/2 in |
| Thread Style | Coarse Thread |
| Fastener Type | Self Piercing Sheet Metal Screws |
| Fastener Color | Gray |
| Fastener Plating | Clear Zinc |
| Package Quantity | 1 |
| Fastener Material | Carbon Steel |
| Interior/Exterior | Exterior |
| Measurement System | Inches |
| Product Weight (lb.) | 0.16 lb |
| Fastener Length (in.) | 1/2 in |
| Manufacturer Warranty | Limited |

## Description

HDZD is the number 1 sheet metal screw for professionals. 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. A single starting thread is formed down to the very tip of the point and is the source of Zip-In's penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Zip-In screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type.

• Highly versatile design allows for indoor and outdoor use
• Unique self-piercing design enables rapid driving
• Screw is heat treated to taper to a fine and sharp point