Stewart Fastener J1012ACHZ Hex Washer Head Tapping Screw

Product Description

The STEWART FASTENER J1012ACHZ is a No. 10 by 0.75-inch Type A hex washer head tapping screw with a zinc finish, sold individually from a jar of 100 units. Type A tapping screws are designed for driving into sheet metal, light-gauge steel, and similar thin materials without requiring a pre-tapped hole. The hex washer head provides a built-in bearing surface that distributes clamping load and allows drive with a standard nut driver or hex-head bit. The zinc coating provides basic corrosion resistance suitable for dry to mildly humid service environments. HVAC fabricators, sheet metal workers, and electrical tradespeople commonly use this fastener type for ductwork, panels, and equipment enclosures.

This screw is suited for light-gauge sheet metal fabrication and assembly tasks common in residential and commercial HVAC installation, electrical panel work, and general mechanical enclosure assembly. The Type A thread form cuts its own mating thread on the first pass, making it a practical choice for production assembly or field installation where speed and simplicity matter. The hex washer head style is a standard specification in many ductwork and equipment-panel applications.

Key Features

• Type A thread form self-taps into sheet metal and light-gauge steel without pre-tapping
• Hex washer head provides integrated bearing surface and positive nut-driver engagement
• Zinc finish for basic corrosion resistance in interior and sheltered applications
• No. 10 diameter by 0.75-inch length suits standard light-gauge panel and duct work
• Packaged 100 per jar for organized jobsite storage and dispensing

Compatibility

Designed as a standard Type A hex washer head tapping screw for use in light-gauge sheet metal, HVAC ductwork, electrical enclosures, and similar thin-material assemblies where self-tapping fasteners are specified.

Installation Notes

Install with a hex-head nut driver or appropriate hex-bit power driver sized to the fastener head. Verify that base material gauge is within the rated range for Type A self-tapping screws before driving. Do not overdrive — strip-out in light-gauge sheet metal is common when torque is not controlled. Follow applicable mechanical and sheet metal codes for fastener spacing and pull-out requirements on structural or pressure-containing assemblies.

Technical Specifications

• Thread Size: No. 10
• Length: 0.75 inches
• Thread Type: Type A Tapping
• Head Style: Hex Washer Head
• Finish: Zinc
• Quantity Per Jar: 100
• UPC: 662352110938

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J1012ACHZ