Value Collection R52001045 1/4-20 X 3/4 in Hex Washer Screw

Product Description

The VALUE COLLECTION R52001045 is a 1/4-20 x 3/4-inch machine screw with a hex washer head and slotted drive, manufactured from steel with a zinc-plated finish. Built to ASME B18.6.3 and SAE J82 standards, this screw delivers consistent dimensional accuracy and corrosion resistance suitable for general mechanical assembly. The hex washer head style provides a broad bearing surface that distributes clamping load without a separate washer. Overall length is 3/4 inches, which matches the length under the head, making it appropriate for through-hole and shallow tapped applications. Electricians, HVAC technicians, plumbers, and general trade professionals regularly use fasteners of this type when securing panels, brackets, and equipment housings.

This machine screw is suited for light-to-medium duty fastening tasks in residential and commercial trade applications. Common installation scenarios include securing electrical enclosure covers, HVAC unit panels, plumbing access panels, and sheet-metal brackets where a slotted hex washer head provides convenient tool access with either a flathead screwdriver or a hex wrench. The zinc-plated finish offers baseline corrosion protection in dry and mildly humid indoor environments. Sold in minimum order quantities of 100 pieces per order.

Key Features

• 1/4-20 unified coarse thread for reliable engagement in standard tapped holes
• Hex washer head distributes clamping load without a separate washer
• Slotted drive accepts standard flathead screwdrivers for quick installation
• Steel construction with zinc-plated finish for corrosion resistance in indoor environments
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• Overall and under-head length both measure 3/4 inches for predictable fitment

Compatibility

Designed for use in any application requiring a 1/4-20 threaded machine screw with a hex washer head, including panel fastening, bracket mounting, and equipment enclosure assembly in HVAC, electrical, and plumbing trade work.

Installation Notes

Installation requires a standard flathead screwdriver or appropriately sized hex driver. Ensure the receiving material has a properly tapped 1/4-20 thread or a compatible nut before driving the fastener. Do not overtighten, as the zinc-plated steel finish can be damaged and threads stripped if excessive torque is applied. Follow applicable mechanical and electrical codes when fastening electrical enclosures or equipment panels.