Value Collection 821092MSC Flange Bolt 3/4-10 Unc 2 in Grade 8

Product Description

The VALUE COLLECTION 821092MSC is a smooth flange bolt designed for heavy-duty fastening applications in industrial, mechanical, and structural assemblies. It features a 3/4-10 UNC thread with a 2-inch length under the head and a 1-3/4-inch thread length, leaving an unthreaded shank section for controlled clamping. The integrated smooth flange distributes clamping load across a wider bearing surface, reducing the need for a separate washer. Made from Grade 8 alloy steel with a phosphate and oil finish, it meets SAE J429 tensile strength requirements. This bolt is installed using a standard hex drive and is suited for high-strength fastening tasks performed by maintenance technicians, millwrights, and mechanical assemblers.

The 821092MSC is appropriate for use in automotive, heavy equipment, agricultural machinery, and general industrial applications where Grade 8 strength and a load-spreading flange are required. The smooth flange profile seats flush against flat mating surfaces without serrations, making it a clean-release option in assemblies that may need periodic disassembly. Its phosphate and oil finish provides moderate corrosion resistance suitable for indoor and protected outdoor environments.

Key Features

• Grade 8 alloy steel construction meets SAE J429 tensile and proof-load standards
• 3/4-10 UNC thread form for compatibility with standard inch-series tapped holes and nuts
• Smooth flange with 1.5938-inch diameter distributes clamping force without a separate washer
• Partially threaded shank provides a bearing surface for shear-loaded joints
• Phosphate and oil finish offers moderate corrosion protection and reduces galling during installation
• Hex drive for use with standard wrenches or impact tools

Compatibility

Designed as an OEM-style or replacement fastener for assemblies requiring a 3/4-10 UNC partially threaded smooth flange bolt rated to Grade 8 strength per SAE J429.

Installation Notes

Installation is typically performed by mechanics, millwrights, or maintenance technicians using a standard hex wrench or impact driver sized for 3/4-inch fasteners. Always verify that the mating tapped hole or nut is rated for Grade 8 loads before torquing. Follow applicable torque specifications from the equipment OEM or ASME fastener guidelines for 3/4-10 UNC Grade 8 hardware. Inspect threads for damage and ensure the flange bearing surface is clean and flat before final assembly.