Value Collection -48409-4 Flat Socket Cap Screw 3/4-10

Product Description

The VALUE COLLECTION -48409-4 is a flat socket cap screw designed for applications requiring a low-profile, flush-mounted fastener with high clamping strength. It features an 82-degree flat head and a 1/2-inch hex socket drive. The fastener is manufactured from alloy steel and finished with black oxide for moderate corrosion resistance. At 3/4-10 thread size and 3-1/2 inches in overall length, it is partially threaded and follows the UNC thread standard. This screw meets ASME/ANSI B18.3 and ASTM F835 standards. It is installed by machinists, millwrights, and maintenance technicians in industrial and mechanical assemblies.

This flat socket cap screw is suited for countersunk hole applications in machinery, jigs, fixtures, and structural assemblies where the fastener head must sit flush with or below the material surface. The 82-degree flat head profile is compatible with standard countersunk hole geometry. Partial threading allows for improved clamp load in through-bolt configurations. The black oxide finish reduces light reflection and provides light surface protection in dry or lightly oiled environments. Sold in a package quantity of 5.

Key Features

• 82-degree flat head profile seats flush in standard countersunk holes
• 1/2-inch hex socket drive for high-torque installation with Allen wrenches or hex-bit drivers
• Alloy steel construction provides high tensile and shear strength
• Black oxide finish offers light corrosion resistance and low reflectivity
• Partially threaded shank suits through-bolt and clamping applications
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard-fit fastener for countersunk socket cap screw applications using 3/4-10 UNC thread size at 3-1/2 inches overall length.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/2-inch hex key or hex-bit driver. Ensure the mating countersunk hole is machined to the correct 82-degree angle before installation. De-energize all equipment and relieve any load or pressure on the assembly before removing or installing fasteners. Do not substitute a flat-head screw in an application designed for a socket button head or socket head cap screw without verifying hole geometry and load requirements.