Value Collection 199559 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 199559 is a hex socket cap screw designed for fastening applications that require a recessed drive and a clean, low-profile head. It features a 1/4-20 UNC thread pattern and measures 3 inches in length under the head. The drive is a 3/16-inch hex socket, requiring an Allen key or hex bit driver for installation or removal. Constructed from 18-8 stainless steel, this screw offers corrosion resistance suitable for both indoor and outdoor environments. It is partially threaded, which helps draw clamped materials together and provides shank bearing in precision assemblies. This fastener is sold individually, with a minimum order quantity of 10 pieces.

This hex socket cap screw is suited for mechanical assemblies, equipment fabrication, and maintenance applications across industrial, HVAC, plumbing, and general trade work. The 1/4-20 UNC thread is one of the most common unified coarse thread sizes in inch-system fastening, making this screw widely applicable in both original equipment builds and field repairs. The stainless steel construction makes it a practical choice where mild corrosion resistance or a clean finish is required.

Key Features

• 1/4-20 UNC thread standard for broad inch-system compatibility
• 3-inch length under head suits deeper clamping and structural fastening applications
• 3/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• 18-8 stainless steel construction provides corrosion resistance in wet or outdoor conditions
• Partially threaded shank supports precise alignment and clamping force in bolted joints
• Lightweight at 0.04 pounds per piece, minimizing added weight in assemblies

Compatibility

Designed as a standard inch-system hex socket cap screw for use in any application calling for a 1/4-20 UNC partially threaded fastener with a 3/16-inch hex socket drive.

Installation Notes

Install using a 3/16-inch hex key or hex bit rated for the required torque. Ensure mating threads are clean and free of debris before installation. Do not over-drive stainless steel fasteners, as the material is susceptible to galling; apply an appropriate anti-seize compound when joining stainless to stainless threads. Follow applicable mechanical and equipment codes for fastener torque and joint specifications.