Value Collection 208978B Hex Head Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION 208978B is a 3/8-16 UNC hex head cap screw with a 6-inch length under head, manufactured from Grade 18-8 stainless steel. The 9/16-inch hex drive accepts standard hex wrenches and sockets. Hex head cap screws in this thread class are used to fasten metal components in structural, mechanical, and equipment assemblies where corrosion resistance and reliable clamping force are required. This fastener is suited for maintenance technicians, millwrights, and trade professionals who need a fully threaded or partially threaded stainless cap screw for service and repair work.

This cap screw is appropriate for general industrial, commercial, and trade applications where 3/8-16 UNC fasteners are specified. Typical use cases include equipment mounting, bracket attachment, and panel fastening in environments where moisture or chemical exposure makes stainless steel the preferred material over zinc-plated or plain steel alternatives. The 18-8 stainless steel alloy offers good weldability and is non-magnetic in the annealed condition, making it suitable for a broad range of service environments.

Key Features

• 3/8-16 UNC thread form for compatibility with standard UNC tapped holes and nuts
• 6-inch length under head accommodates deep clearance holes and thick stack-ups
• Grade 18-8 stainless steel construction for corrosion resistance in wet or chemically active environments
• 9/16-inch hex drive accepts common wrenches and impact sockets
• Hex head profile provides high torque transfer without drive recess stripping

Compatibility

Designed as a standard UNC hex head cap screw for use in any application calling for a 3/8-16 UNC fastener with a 6-inch length under head in stainless steel.

Installation Notes

Installation is typically performed by maintenance technicians or tradespeople using a 9/16-inch wrench, combination wrench, or socket. Ensure the mating tapped hole or nut is 3/8-16 UNC and that threads are clean and free of debris before fastening. Apply appropriate thread lubricant or anti-seize compound when required by the application to prevent galling, which is common with stainless steel fasteners. Follow the applicable structural or equipment manufacturer torque specifications for the fastener size and grade.