Stewart Fastener J1224ACHZ Hex Washer Head Tapping Screw Zinc

Product Description

The STEWART FASTENER J1224ACHZ is a No. 12 by 1-1/2 inch Type A hex washer head tapping screw with a zinc finish. Type A tapping screws are self-threading fasteners designed for use in sheet metal, light steel framing, and similar thin-gauge materials. The hex washer head combines a built-in washer bearing surface with a hex drive profile, allowing installation with a standard nut driver or hex-bit driver without a separate washer. The zinc coating provides basic corrosion resistance suitable for general-purpose interior and light-duty exterior applications. This SKU is sold per individual screw from a jar of 100 units.

These tapping screws are commonly used in HVAC ductwork assembly, sheet metal panel attachment, electrical enclosures, and light structural connections in metal framing. The No. 12 diameter and 1-1/2 inch length make them a standard choice for connecting light-gauge sheet metal components where a secure, vibration-resistant fastener is required. They are appropriate for residential and light commercial trade work performed by HVAC technicians, sheet metal workers, and electricians.

Key Features

• Type A thread form for self-tapping into sheet metal and light-gauge steel without pre-threading
• Hex washer head provides a wide bearing surface and eliminates the need for a separate washer
• No. 12 diameter by 1-1/2 inch length suits standard duct and panel attachment applications
• Zinc finish offers corrosion resistance for general-purpose interior and light exterior use
• Sold individually from a 100-count jar for flexible quantity purchasing

Compatibility

Designed as a standard Type A hex washer head tapping screw compatible with light-gauge sheet metal assemblies, HVAC duct panels, electrical enclosures, and similar thin-material applications where a No. 12 by 1-1/2 inch fastener is specified.

Installation Notes

Installation is performed with a hex nut driver or hex-bit power driver sized to the fastener head. Verify that base material gauge is appropriate for the Type A thread form before driving. Do not overdrive, as the washer head can deform thin sheet metal if excessive torque is applied. Follow applicable codes such as SMACNA standards for duct assembly when used in HVAC applications.

Technical Specifications

• Thread Type: Type A Tapping
• Head Style: Hex Washer Head
• Diameter: No. 12
• Length: 1-1/2 inches
• Finish: Zinc
• Package Quantity: 100 per jar, sold per each
• UPC: 662352111058

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J1224ACHZ