Malco BT141-500 Hex Washer Bit-tip Screw 10x0.5in 16TPI 500pk

Product Description

The MALCO BT141-500 is a No. 10 x 0.5-inch hex washer head bit-tip screw designed for sheet metal and light steel framing applications in HVAC, mechanical, and construction trades. Each screw features a No. 2 drill point that produces an optimum hole size for better thread engagement and a tighter fit without requiring a pre-drilled pilot hole. The shank is cold forged for uniform dimensional consistency and drill point contour. With 16 threads per inch and a 5/16-inch drive, these screws are heat treated for strength and driven with a standard hex tip driver. This bulk pack contains 500 screws.

These bit-tip screws are suited for residential and commercial HVAC ductwork fabrication and installation, light gauge steel assembly, and sheet metal fastening tasks. The self-drilling design eliminates the need for auxiliary drill bits or welding equipment, making them a practical choice for field work and shop fabrication alike. HVAC technicians and sheet metal workers will find this fastener well suited to duct connections, flanges, and panel attachments where speed and reliability matter.

Key Features

• No. 2 drill point produces optimum hole size for better thread engagement and tighter fit
• Cold forged construction ensures uniformity of dimension and drill point contour
• Heat treated steel for added strength and durability
• 5/16-inch hex drive compatible with standard hex tip drivers and screw guns
• Eliminates need for separate drill bits or welding equipment
• Bulk pack of 500 screws for high-volume work

Compatibility

Designed as an OEM-style replacement and general-use bit-tip screw for sheet metal and light gauge steel fastening applications common in HVAC ductwork and mechanical installation.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal workers using a screw gun or drill with a 5/16-inch hex driver bit. Power down and de-energize any associated electrical or mechanical systems before fastening near live components. Do not overdrive screws, as this can strip threads or distort thin gauge sheet metal. Follow applicable SMACNA standards and local mechanical codes for fastener spacing and joint requirements.

Technical Specifications

• Nominal Diameter: No. 10
• Length: 0.5 inches
• Threads Per Inch (TPI): 16
• Drive Style: 5/16-inch Hex
• Head Style: Hex Washer
• Drill Point Size: No. 2
• Material: Steel
• Process: Heat Treated
• Quantity: 500 per bulk pack
• Warranty: Lifetime Limited

Standard Information

• Brand: MALCO
• Manufacturer Part Number: BT141-500