Value Collection 592483BR Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 592483BR is a hex socket cap screw designed for heavy-duty fastening applications requiring a secure, corrosion-resistant connection. Sized at 7/8-9 UNC threading with a 4.5-inch length under head, this screw uses a 3/4-inch hex drive for high-torque installation with an Allen wrench or hex bit. Constructed from 18-8 austenitic stainless steel (Grade A2) with a bright, uncoated finish, it delivers reliable performance in environments where rust resistance is a priority. The partially threaded shank provides a strong clamping force between joined materials. It meets ASME/ANSI B18.3 and ASTM F837 standards.

This fastener is suited for mechanical assemblies, structural connections, and equipment fabrication where UNC coarse-thread socket cap screws are specified. The 7/8-9 UNC size is common in heavier industrial, HVAC equipment mounting, pump assemblies, and general trade applications. The stainless steel construction makes it a practical choice for installations exposed to moisture, chemicals, or outdoor conditions. Machinists, pipefitters, millwrights, and general contractors typically work with this screw size in both new construction and repair scenarios.

Key Features

• 7/8-9 UNC coarse thread for reliable engagement in standard tapped holes
• 4.5-inch length under head accommodates thicker material stacks
• Partially threaded shank provides improved clamping and shear resistance
• 18-8 austenitic stainless steel (Grade A2) resists corrosion and oxidation
• Bright, uncoated finish — no plating to chip, flake, or affect thread tolerances
• Meets ASME/ANSI B18.3 and ASTM F837 standards for dimensional and mechanical compliance

Compatibility

Designed as a standard replacement or new-installation fastener for any application specifying a 7/8-9 UNC hex socket cap screw with 4.5-inch length under head, per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/4-inch hex key, Allen wrench, or hex drive bit with appropriate torque capability. Always verify that the receiving threads are clean and properly tapped to 7/8-9 UNC before installation. Inspect mating surfaces and remove burrs or debris to ensure full seating of the cap head. Follow applicable mechanical and structural codes for torque requirements based on joint design and material.