Value Collection 199554 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 199554 is a 1/4-20 UNC hex socket cap screw designed for general fastening applications in mechanical, plumbing, and industrial assemblies. This fastener features a 3/16-inch hex drive socket head and a 2-1/2-inch length under head with partial threading. Constructed from 18-8 stainless steel, it resists corrosion in wet or chemically active environments. Tradespeople and technicians use these screws where a flush or recessed hex drive is preferred over an external hex or Phillips head. A standard hex key or Allen wrench engages the drive for controlled torque application.

This screw is suited for use in HVAC equipment panels, plumbing fixture brackets, electrical enclosures, and general equipment assembly where stainless steel corrosion resistance is required. The 1/4-20 UNC thread pitch is a widely used coarse thread standard, making this fastener compatible with a broad range of tapped holes and threaded inserts in both residential and light commercial trade work. Partial threading allows the unthreaded shank to bear shear loads in through-hole and shoulder applications.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes and inserts
• 2-1/2-inch length under head with partial threading for shear-load and through-hole applications
• 3/16-inch hex socket drive for use with standard Allen keys or hex drivers
• 18-8 stainless steel construction resists corrosion in wet and chemically active environments
• Partially threaded shank allows unthreaded section to bear lateral shear forces

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw suitable for use in any application requiring a 1/4-20 coarse-thread fastener with a 3/16-inch hex drive and 2-1/2-inch length under head.

Installation Notes

Install using a 3/16-inch hex key or Allen-style driver. Ensure the mating tapped hole or threaded insert is clean and free of debris before driving. When installing in stainless steel threaded holes, apply an anti-seize compound to prevent galling, which is a common failure mode with stainless fasteners. Power down or de-energize any equipment before accessing fastener locations on live electrical or HVAC assemblies.