Value Collection 3sscs94c408 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION 3sscs94c408 is a 1/4-20 UNC hex socket cap screw designed for fastening applications that require a clean, recessed drive profile and reliable corrosion resistance. It measures 4-1/2 inches in length under the head and accepts a 3/16-inch hex key drive. Constructed from 18-8 austenitic stainless steel (Grade A2), this fastener delivers solid corrosion resistance in wet, chemical-exposed, or outdoor environments. Threading is partial, which helps align mating components during installation and maintains clamping force across the unthreaded shank. Manufactured to ASME/ANSI B18.3 and ASTM F837 standards.

This screw suits mechanical, plumbing, HVAC, and industrial assembly work where a low-profile socket head is preferred over hex bolts or standard cap screws. It is commonly used in equipment panels, brackets, pumps, fluid handling components, and light structural connections where stainless fasteners are specified for corrosion resistance. Installers working in coastal, chemical, or high-moisture environments frequently specify 18-8 stainless hardware of this type.

Key Features

• 1/4-20 UNC thread form for broad compatibility with standard tapped holes
• 4-1/2 inch length under head accommodates thicker assemblies and stacked components
• 3/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Partially threaded shank improves clamping and component alignment
• 18-8 austenitic stainless steel (Grade A2) provides corrosion resistance in wet and chemical environments
• Meets ASME/ANSI B18.3 and ASTM F837 dimensional and mechanical standards

Compatibility

Designed as a standard-dimension 1/4-20 UNC hex socket cap screw suitable for use in any tapped or threaded hole conforming to 1/4-20 UNC thread specifications per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/16-inch hex key or Allen-style bit driver; power-driving is acceptable when torque is controlled to avoid thread galling in stainless-to-stainless assemblies. Apply an anti-seize compound when threading into stainless or aluminum to reduce the risk of cold welding. Ensure the mating hole is clean, properly tapped, and free of debris before installation. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the joint being assembled.