Stewart Fastener J1040MRCZ 10-24 X 2-1/2 Zinc Machine Screws 100

Product Description

The STEWART FASTENER J1040MRCZ is a zinc-plated round head combination drive machine screw in a 10-24 thread size and 2-1/2 inch length. Sold in a jar of 100, this fastener is designed for general mechanical assembly work where a corrosion-resistant, reusable threaded fastener is required. The round head profile provides a low-profile dome finish that sits above the mating surface, and the combination drive accepts both slotted and Phillips drivers. These screws are a standard stock item used by HVAC, electrical, and mechanical tradespeople for panel mounting, bracket attachment, and equipment assembly tasks.

The J1040MRCZ is suited for light-gauge metal and structural assembly applications in residential and commercial mechanical systems. The 10-24 thread form is a coarse unified national thread commonly found on electrical panels, junction boxes, duct flanges, and equipment housings. The 100-count jar format makes this SKU appropriate for service vans and shop stocking where multiple fasteners are consumed per job.

Key Features

• 10-24 unified coarse thread for broad compatibility with standard tapped holes
• 2-1/2 inch length accommodates stacked panel or bracket assemblies
• Zinc plating provides basic corrosion resistance in indoor and sheltered environments
• Round head combination drive accepts Phillips or slotted screwdrivers and bits
• 100-count jar packaging for efficient stocking and repeated job use

Compatibility

Designed for use in standard 10-24 tapped holes found in electrical enclosures, HVAC equipment panels, junction boxes, and general mechanical assemblies.

Installation Notes

Installation is performed with a Phillips or flathead screwdriver or power bit driver. Always ensure the receiving hole is properly tapped to 10-24 before driving to avoid cross-threading. Do not overtorque into light-gauge sheet metal applications. Follow applicable NEC or equipment manufacturer guidelines when fastening electrical enclosures or panel covers.