Stewart Fastener J1448APFZ No.14x3 Phillips Flat Head Screw

Product Description

The STEWART FASTENER J1448APFZ is a No. 14 x 3 inch Phillips flat head Type A sheet metal screw with a zinc plated finish. Type A screws feature a coarse, spaced thread pattern designed to bite into light-gauge sheet metal, plastic, and similar thin materials without a pre-tapped hole. The countersunk flat head seats flush with the workpiece surface when driven fully, making this fastener well suited for panels, brackets, ductwork, and enclosures where a low-profile finish is required. Zinc plating provides a baseline level of corrosion resistance for indoor and light-duty applications. This product is sold per each unit, packaged 100 screws per jar.

This fastener is used across HVAC, electrical, and general sheet metal fabrication work. Typical applications include securing sheet metal panels on air handlers and ductwork, attaching electrical enclosure covers, and fastening metal brackets to light-gauge steel framing. The No. 14 diameter and 3 inch length make it appropriate for situations requiring a longer grab into stacked or thicker sheet metal assemblies. Installation is performed by HVAC technicians, sheet metal workers, and electricians as part of routine panel and enclosure work.

Key Features

• No. 14 diameter x 3 inch length for extended fastening reach into thicker or stacked sheet metal
• Type A coarse thread profile designed to self-tap into light-gauge sheet metal without a pre-tapped hole
• Phillips drive for compatibility with standard No. 2 Phillips bits and power drivers
• Countersunk flat head seats flush with the workpiece surface for a clean, low-profile finish
• Zinc plated finish for baseline corrosion resistance in indoor and sheltered environments
• Packaged 100 screws per jar for job-site convenience and inventory control

Compatibility

Designed as a general-purpose Type A sheet metal screw suitable for light-gauge steel panels, ductwork, electrical enclosures, and similar thin-material fastening applications common in HVAC, plumbing, and electrical trades.

Installation Notes

A licensed sheet metal worker, HVAC technician, or electrician typically installs these fasteners as part of panel assembly or enclosure work. Use a No. 2 Phillips bit with a power driver or manual screwdriver; avoid over-driving, which can strip the sheet metal or damage the screw head. Power down electrical systems and depressurize ductwork assemblies before opening panels or enclosures for fastener service. Follow applicable codes such as the NEC or SMACNA standards for sheet metal assembly requirements.

Technical Specifications

• Drive Type: Phillips
• Head Style: Flat Head (Countersunk)
• Thread Type: Type A Sheet Metal
• Size: No. 14
• Length: 3 inches
• Finish: Zinc Plated
• Package Quantity: 100 per jar (sold per each)
• UPC: 662352222303

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J1448APFZ