Value Collection 1-H-25C-650 Hex Head Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 1-H-25C-650 is a partially threaded hex head cap screw sized at 1/4-20 x 6-1/2 inches, manufactured from 18-8 stainless steel with an uncoated finish. The 1/4-20 thread designation indicates a 1/4-inch nominal diameter with 20 threads per inch on a Unified National Coarse (UNC) thread standard. Partial threading along the shank allows for controlled clamping force and permits slight relative movement between fastened components when required. This fastener suits applications where corrosion resistance is a priority and a standard hex drive is preferred. Plumbers, HVAC technicians, electricians, and maintenance trades routinely specify 18-8 stainless hardware for mechanical assemblies exposed to moisture or mild chemical environments.

This screw is suited for general mechanical assembly, structural bracketing, and equipment mounting in both residential and light commercial settings. Its 6-1/2-inch length under the head accommodates thick stack-ups or applications requiring fastener engagement through multiple layers of material. The uncoated 18-8 stainless steel construction makes it appropriate for indoor and outdoor installations where galvanic compatibility with stainless or aluminum mating components is needed. Typical uses include mounting brackets, equipment frames, and panel assemblies across HVAC, plumbing, and electrical trade work.

Key Features

• 1/4-20 UNC thread form for broad compatibility with standard 1/4-inch tapped holes and nuts
• 6-1/2-inch length under head accommodates thick material stack-ups
• Partially threaded shank allows controlled clamping and reduces thread engagement where not required
• 18-8 stainless steel construction provides corrosion resistance in moisture-exposed environments
• Uncoated finish eliminates coating thickness variability for precision fits
• Inch measurement system with standard hex drive for use with common hand and power tools

Compatibility

Designed as a standard 1/4-20 UNC partially threaded hex head cap screw for use with any 1/4-20 tapped hole, nut, or threaded insert conforming to Unified National Coarse thread standards in the inch measurement system.

Installation Notes

Installation requires a standard hex wrench or socket sized for the fastener head. Power down or de-energize any equipment before fastening hardware into electrical enclosures or panels. Follow applicable mechanical codes and torque guidelines for the specific assembly material and load requirements. Avoid mixing stainless steel fasteners with dissimilar metals in highly conductive or marine environments without appropriate isolation to minimize galvanic corrosion risk.