Value Collection 88546668 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 88546668 is a 1/4-20 UNC hex socket cap screw designed for fastening applications that require a secure, high-strength threaded connection. The screw features a 3/4-inch length under the head and a 3/16-inch internal hex drive, accepting a standard Allen key or hex bit driver. Constructed from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and mechanical strength suited to industrial and mechanical assembly work. It is partially threaded, which provides improved clamping force in through-bolt applications. Each package contains 13 screws.

This fastener is used across a wide range of trade and industrial applications including HVAC equipment assembly, electrical enclosure mounting, plumbing fixture installation, and general mechanical fabrication. The 1/4-20 UNC thread is one of the most common unified coarse thread standards, making this screw a frequently specified fastener in both OEM manufacturing and field service work. The black oxide coating suits indoor and protected outdoor environments where moderate corrosion resistance is acceptable.

Key Features

• 1/4-20 UNC thread for compatibility with standard unified coarse tapped holes
• 3/4-inch length under head for appropriate grip in typical fastening applications
• 3/16-inch hex drive accepts standard Allen keys and hex bit drivers
• Alloy steel construction provides high tensile strength
• Black oxide finish adds surface corrosion resistance and reduces light reflection
• Partially threaded shank improves clamping performance in through-hole applications

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw for use in any tapped or clearance hole application requiring this thread size and a 3/4-inch under-head length.

Installation Notes

Installation is performed with a 3/16-inch hex key or Allen driver; use a torque wrench appropriate for 1/4-20 fasteners when torque specifications are required by the equipment manufacturer. Ensure the mating tapped hole is clean and free of debris before threading. Do not overtighten, as this can strip the internal hex drive or the threaded hole. Follow applicable codes and equipment service manuals for fastener specifications.