Value Collection 36880 Flat Socket Cap Screw 1/2-20

Product Description

The VALUE COLLECTION 36880 is a fully threaded flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. Sized at 1/2-20 x 1-1/4 inches overall length, it features an 82-degree flat head driven by a 5/16-inch hex socket. Constructed from alloy steel with a black oxide finish, this screw delivers solid mechanical strength and moderate corrosion resistance in a compact, low-profile form factor. It meets ASME/ANSI B18.3 and ASTM F835 standards and uses a Unified National Fine (UNF) thread form.

This screw is suited for mechanical assemblies, tooling fixtures, machine components, and structural connections where a flush seating surface is required. The UNF 1/2-20 thread pitch provides higher thread engagement per inch compared to coarse thread, making it appropriate for applications where vibration resistance or fine adjustability is needed. This fastener ships in a package quantity of 10, making it practical for small-batch service work or bench stock replenishment.

Key Features

• 82-degree flat head seats flush or below surface for low-profile assemblies
• 5/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Fully threaded 1/2-20 UNF thread for maximum thread engagement along the full length
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 fastener standards
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Sold in packages of 10 with a minimum order quantity of 1

Compatibility

Designed as a standard-dimension replacement or stock fastener for any application requiring a 1/2-20 UNF fully threaded flat socket cap screw conforming to ASME/ANSI B18.3 and ASTM F835.

Installation Notes

Installation is performed with a 5/16-inch hex key or Allen bit driver. Ensure the mating countersink is machined to an 82-degree included angle to achieve correct head seating. Power down or de-energize any associated equipment before disassembling fastened components. Do not exceed the rated mechanical load for the alloy steel grade and thread size when torquing.