Value Collection 36858 Flat Socket Cap Screw 1/2-13 X 2 in

Product Description

The VALUE COLLECTION 36858 is a fully threaded flat socket cap screw designed for fastening applications where a flush or countersunk head profile is required. Sized at 1/2-13 UNC thread by 2 inches overall length, this screw is manufactured from alloy steel with a black oxide finish that provides moderate corrosion resistance and reduces light glare on exposed hardware. The 82-degree flat head seats into standard countersunk holes, and the 5/16-inch hex socket drive accommodates a standard hex key or Allen-style bit driver. Sold in a package of 10 pieces, this fastener is suited for use by machinists, millwrights, maintenance technicians, and general industrial assemblers.

This screw is appropriate for mechanical assemblies, fixtures, machine frames, and structural joints where a low-profile head is necessary to clear adjacent components or create a flush surface. The 1/2-13 UNC thread size is a common coarse-thread specification used across a wide range of industrial and OEM applications. Fully threaded construction provides maximum thread engagement across the full 2-inch shank length, which is useful when fastening thinner materials or when thread engagement depth varies by application.

Key Features

• 82-degree flat head profile for flush countersunk installations
• 5/16-inch hex socket drive for hex key or bit driver use
• 1/2-13 UNC fully threaded, 2 inches overall length
• Alloy steel construction for high tensile strength
• Black oxide finish for moderate corrosion and glare resistance
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard-dimension replacement or production fastener for any application specifying a 1/2-13 UNC x 2-inch 82-degree flat socket cap screw per ASME/ANSI B18.3 and ASTM F835.

Installation Notes

Installation should be performed with a properly sized 5/16-inch hex key or socket bit to avoid rounding the drive recess. Countersink the mating hole to an 82-degree angle to achieve full, flush head seating. Apply appropriate thread lubricant or thread-locking compound per the assembly specification before torquing. Follow applicable mechanical or structural fastener standards for final torque values based on material and joint design.