Value Collection 440366PR Hex Cap Screw 1/2-13 X 6 in Grade L9

Product Description

The VALUE COLLECTION 440366PR is a partially threaded hex head cap screw designed for heavy-duty mechanical and structural fastening applications. Built from Grade L9 steel, this fastener delivers a tensile strength of 180,000 psi, making it suitable for demanding assemblies that require high clamping force and resistance to loosening under load. The 1/2-13 UNC thread pattern and 6-inch length under head provide solid engagement in thick or stacked material configurations. A zinc yellow dichromate finish adds a layer of corrosion resistance. Installed using a 3/4-inch hex key or standard hex-drive socket, this screw is a reliable option for industrial maintenance, OEM assembly, and field repair work.

This fastener is suited for use in applications where partially threaded shanks are required to pull mating components flush without thread engagement through the full grip length. Common installation scenarios include machinery frames, structural steel connections, heavy equipment brackets, and fabricated assemblies. The 1/2-13 UNC thread is a standard coarse-thread specification widely used in North American industrial and manufacturing environments. Tradespeople in mechanical, industrial maintenance, and general construction disciplines will find this screw appropriate for a wide range of bolted joint configurations.

Key Features

• Grade L9 steel construction with 180,000 psi tensile strength for high-load fastening
• Partially threaded shank provides full grip-length clamping without thread interference
• 1/2-13 UNC coarse thread standard for broad compatibility with North American hardware
• Zinc yellow dichromate finish for added corrosion resistance
• 3/4-inch hex drive for use with standard sockets or wrenches
• 6-inch length under head accommodates thick material stacks and long-grip applications

Compatibility

Designed as a standard 1/2-13 UNC partially threaded hex head cap screw for use in any application requiring Grade L9 steel fasteners with a 6-inch grip length and zinc yellow dichromate finish.

Installation Notes

Installation should be performed by qualified mechanical or maintenance tradespeople following applicable fastener torque standards for the joint being assembled. Always ensure mating threaded holes or nuts are clean, undamaged, and rated for the load requirements before installation. Use a calibrated torque wrench to achieve proper clamp load as specified by the equipment or structure manufacturer. Do not use impact tools at final torque without a verified torque-limiting attachment.