Value Collection 242259 Flat Socket Cap Screw 5/16-18 X 1 in

Product Description

The VALUE COLLECTION 242259 is a flat socket cap screw designed for fastening applications that require a flush or countersunk finish. The 82-degree flat head seats into a matching countersunk hole, leaving the surface smooth and unobstructed. Drive engagement is through a 3/8-inch hex socket, which allows high torque application with a standard Allen key or hex bit driver. Constructed from 18-8 stainless steel, this fastener resists corrosion in wet, outdoor, and mildly chemical environments. The 5/16-18 UNC thread size and 1-inch overall length make it a common choice across a wide range of mechanical and structural assemblies. Typically installed by machinists, millwrights, HVAC technicians, plumbers, and general tradespeople.

This fastener is suited for use in residential and commercial applications where a flush-mount fastening solution is required. Common install scenarios include panel mounting, equipment frames, brackets, and enclosures where protruding fastener heads are not acceptable. The UNC thread form is compatible with standard inch-system tapped holes and nuts. The 18-8 stainless steel construction makes it appropriate for interior and exterior installations where mild corrosion resistance is needed. Minimum order quantity is 100 pieces per order.

Key Features

• 82-degree flat head seats flush in countersunk holes for a smooth finished surface
• 3/8-inch hex socket drive accepts standard Allen keys and hex bit drivers
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• 5/16-18 UNC thread standard ensures compatibility with standard inch-system tapped holes
• 1-inch overall length suits a wide range of panel, bracket, and frame fastening applications

Compatibility

Designed as a standard inch-system flat socket cap screw for use in any application requiring a 5/16-18 UNC thread and an 82-degree countersunk flat head seating profile.

Installation Notes

Install using a correctly sized 3/8-inch hex key or hex bit driver to avoid drive recess damage. Ensure the mating hole is countersunk to an 82-degree included angle before installing to achieve proper head seating. Torque fasteners to the values specified by the equipment manufacturer or applicable engineering standard. Avoid mixing stainless steel fasteners with dissimilar metals in environments where galvanic corrosion is a concern.