Hillman 41643 #12 x 3 in. Hex Washer Head Self-Drilling Screw (50 Ct.):

Product Overview

The Hillman 41643 Self-Drilling Screw is a heavy-duty fastener designed for metal-to-metal applications, eliminating the need for pre-drilling. With a #12 gauge size and 3-inch length, this screw features a hex washer head for superior torque control and seating stability. Its self-drilling point allows it to drill, tap, and fasten in one operation, saving time and effort. The zinc-plated finish provides moderate corrosion resistance, making it ideal for indoor and protected outdoor environments.

Key Features

• Self-Drilling Design: Drills and taps in one step—no pilot hole required.
• Hex Washer Head: Provides excellent torque control and prevents pull-through.
• Zinc-Plated Finish: Offers moderate corrosion resistance for long-lasting performance.
• Heavy-Duty Construction: Made from hardened steel for strength and durability.
• Precision Drill Point: Ensures smooth, accurate drilling and secure thread engagement.

Specifications

• Brand: Hillman
• Model: 41643
• Type: Self-Drilling Screw
• Gauge Size: #12
• Length: 3 in.
• Thread Pitch: 14 TPI
• Head Style: Hex Washer Head
• Drive Size: 3/8 in. Hex
• Material: Hardened Steel
• Finish: Zinc-Plated
• Point Style: #3 Drill Point
• Package Quantity: 50 screws per box
• Drill Capacity: Up to 0.220 in. metal thickness
• Compliance: Meets ASTM C1513 and SAE J78 standards

Applications

• Metal-to-Metal Fastening: Ideal for steel framing, HVAC ductwork, and metal panels.
• Construction & Trade: Commonly used in commercial and industrial projects.
• General Repairs: Perfect for maintenance and fabrication tasks.
• Indoor & Protected Outdoor Use: Zinc coating offers moderate corrosion resistance.