Value Collection 209005B Hex Head Cap Screw 5/8-11 3.5in Ss

Product Description

The VALUE COLLECTION 209005B is a 5/8-11 hex head cap screw measuring 3-1/2 inches under the head, manufactured from 18-8 stainless steel with a Unified National Coarse (UNC) thread standard. The 15/16-inch hex drive accepts a standard open-end or socket wrench. This fastener is used across mechanical, structural, and equipment assembly applications where corrosion resistance is required. Plumbers, HVAC techs, electricians, and general trade contractors install this type of fastener when securing flanges, brackets, equipment housings, or structural members in corrosive or wet environments where carbon steel hardware is not suitable.

This cap screw is appropriate for both indoor and outdoor applications where exposure to moisture, mild chemicals, or temperature cycling would degrade standard zinc-plated or plain steel fasteners. Common install scenarios include equipment mounting pads, pipe support brackets, electrical enclosure hardware, and mechanical room structural connections. The 18-8 stainless alloy provides a balance of strength, weldability, and corrosion resistance suitable for most general trade applications outside of highly chlorinated or marine environments.

Key Features

• 18-8 stainless steel construction resists rust and corrosion in wet or outdoor service environments
• 5/8-11 UNC thread for broad compatibility with standard nuts, inserts, and tapped holes
• 3-1/2 inch length under head suits medium-depth clamping and through-bolt applications
• 15/16-inch hex drive accepts common open-end, box, or socket wrenches
• Full hex head profile provides high torque transmission without head stripping

Compatibility

Designed for use in any application requiring a 5/8-11 UNC hex head cap screw in 18-8 stainless steel. Fits standard 5/8-11 threaded nuts, inserts, and tapped holes conforming to UNC thread standards.

Installation Notes

Install using a 15/16-inch open-end, box, or socket wrench. De-energize or shut off any equipment before securing or removing fasteners on live assemblies. Do not mix stainless steel fasteners with dissimilar metals in applications where galvanic corrosion is a concern. Apply an anti-seize compound to threads when installing stainless fasteners into stainless tapped holes to prevent galling.