Au-ve-co Products 20259 Sheet Metal Screw M4.8 X 19mm

Product Description

The AU-VE-CO PRODUCTS 20259 is a Sems-style oval head sheet metal screw designed for fastening sheet metal components in HVAC, refrigeration, and light mechanical assemblies. It features an M4.8 thread size, a 19mm length, and a Phillips drive for fast installation with standard hand tools or power drivers. The integrated Sems washer is captured under the head, eliminating the need for a separate flat washer and speeding up assembly. Constructed from steel, this screw is suited for the repetitive fastening demands common in ductwork, equipment panels, and enclosure fabrication. Sold in a minimum order quantity of 25 pieces per package.

This screw is a standard fit for sheet metal applications across residential and light commercial HVAC installations, refrigeration cabinets, electrical enclosures, and equipment panels. The Type A and Type AB point geometry allows it to seat into pre-punched or self-pierced sheet metal openings with minimal preparation. The Phillips oval head provides a low-profile finish that sits slightly above the surface, making it a common choice where a clean appearance is needed alongside a secure mechanical connection.

Key Features

• M4.8 thread size with 19mm length for consistent bite in light-gauge sheet metal
• Sems design captures the washer under the head, reducing loose hardware during installation
• Phillips drive compatible with standard No. 2 Phillips bits and manual screwdrivers
• Type A and Type AB point geometry for use in pre-punched or self-pierced sheet metal holes
• Steel construction for strength in general mechanical fastening applications
• Oval head profile offers a low-profile, finished appearance at the fastening point

Compatibility

Designed as a standard OEM-style replacement or service fastener for sheet metal assemblies in HVAC equipment, refrigeration units, and electrical enclosures requiring an M4.8 Phillips Sems oval head screw.

Installation Notes

Installation should be performed by a qualified HVAC technician, sheet metal mechanic, or electrician as appropriate to the equipment being serviced. Always de-energize and lock out the equipment before accessing internal panels or enclosures. Use a No. 2 Phillips bit to avoid cam-out and head damage. Do not overtighten - strip-out in light-gauge sheet metal is difficult to repair and may compromise panel integrity.