Stewart Fastener J0812MRCZ 8-32 X 3/4 in Round Head Machine Screw

Product Description

The STEWART FASTENER J0812MRCZ is an 8-32 x 3/4 inch round head combination drive machine screw with a zinc plated finish, sold in a jar of 100 fasteners. The 8-32 thread designation indicates a number 8 diameter with 32 threads per inch, a standard coarse-pitch machine screw size widely used in light-duty mechanical assemblies. The zinc plating provides basic corrosion resistance suitable for indoor and light-duty service environments. The combination drive head accepts both a slotted and Phillips driver, giving installers flexibility in the field. These screws are a standard consumable stocked and used by HVAC technicians, electricians, plumbers, and general mechanical contractors.

The J0812MRCZ is suited for panel attachment, equipment covers, junction boxes, ductwork access doors, and general sheet metal or light structural fastening applications where an 8-32 thread form is specified. The jar packaging keeps fasteners contained and organized on the job site or in a service vehicle. Each jar contains 100 screws and is sold per jar as a single unit. This size is commonly encountered in residential and light commercial mechanical equipment assemblies.

Key Features

• 8-32 thread form, 32 threads per inch — standard machine screw pitch for light mechanical assemblies
• 3/4 inch length for moderate panel and cover thickness applications
• Round head profile distributes clamping load across a wider bearing surface
• Combination drive accepts Phillips or slotted drivers for field flexibility
• Zinc plated finish for basic corrosion resistance in dry or indoor environments
• Jar of 100 for organized storage and efficient job site access

Compatibility

Designed as a standard 8-32 x 3/4 inch round head machine screw suitable for general mechanical fastening applications where this thread size and length are specified.

Installation Notes

Install using the appropriate Phillips or slotted screwdriver or bit rated for the fastener drive size. Always de-energize electrical equipment before accessing panels or covers secured by these fasteners, following applicable NEC or OSHA lockout/tagout procedures. Do not overtighten into thin sheet metal or plastic standoffs, as stripping the receiving thread is a common field error with 8-32 fasteners. Use a thread gauge or tap to verify receiving thread condition before installation in reused hardware.

Technical Specifications

• Thread Size: 8-32
• Length: 3/4 inches
• Head Style: Round Head
• Drive Type: Combination (Phillips and Slotted)
• Finish: Zinc Plated
• Quantity per Package: 100
• UPC: 662352111423

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J0812MRCZ