Value Collection 36860 Flat Socket Cap Screw 1/2-13

Product Description

The VALUE COLLECTION 36860 is a flat socket cap screw designed for applications requiring a flush or countersunk fastening profile. The 82-degree flat head seats into a matching countersunk hole, leaving the fastened surface smooth and unobstructed. Drive engagement is through a 5/16-inch hex socket, requiring an Allen key or hex bit. The fastener is manufactured from alloy steel with a black oxide finish that provides moderate corrosion resistance and reduces light reflection. At 1/2-13 thread size by 2-1/2 inches overall length and partially threaded shank, it suits medium-to-heavy structural and mechanical assemblies where a recessed head is needed.

This screw is suited for industrial machinery, tooling fixtures, structural fabrications, and mechanical assemblies where a flush surface finish is required. The partially threaded shank allows for proper clamping force between joined materials rather than full thread engagement through the stack. It is commonly installed by machinists, millwrights, and maintenance technicians working in manufacturing and industrial maintenance environments. Sold in a package quantity of 10 per order.

Key Features

• 82-degree flat head profile seats flush in standard countersunk holes
• 5/16-inch hex socket drive for Allen key or hex bit installation
• Partially threaded shank for controlled clamping force between mating surfaces
• Alloy steel construction for high tensile strength in demanding applications
• Black oxide finish for moderate corrosion resistance and low-glare appearance
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style and general-purpose replacement flat socket cap screw for applications requiring a 1/2-13 UNC partially threaded fastener with an 82-degree countersunk flat head.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a properly sized 5/16-inch hex key or Allen bit. Ensure the mating countersunk hole is machined to an 82-degree included angle to achieve proper head seating. De-energize and lock out all equipment before fastener replacement in powered machinery per applicable OSHA lockout/tagout procedures. Do not exceed the rated torque capacity of the fastener for the alloy steel grade in use.