Value Collection 402190PR Hex Cap Screw 1/2-13 X 8 in Grade 2

Product Description

The VALUE COLLECTION 402190PR is a hex head cap screw sized at 1/2-13 x 8 inches, manufactured from Grade 2 steel with a bright, uncoated finish. It features partial threading along the shank and is measured under the head at 8 inches. The thread standard is UNC (Unified National Coarse) at 1/2-13, making it a common fastener size for general-purpose structural and mechanical assemblies. This screw is used by maintenance technicians, millwrights, plumbers, and HVAC mechanics wherever a standard inch-system hex head fastener is required.

This fastener is suited for general industrial, commercial, and light structural applications. Partial threading allows the unthreaded shank to bear load in shear, which is useful when fastening through clearance holes or when joint clamping is the primary design requirement. It is appropriate for use in equipment assembly, pipe support framing, HVAC equipment mounting, and similar mechanical work where Grade 2 steel strength meets the load requirement.

Key Features

• 1/2-13 UNC thread form for wide compatibility with standard inch-system nuts and tapped holes
• 8-inch length under head provides reach for thick material stacks or through-bolt applications
• Partial threading allows the smooth shank to carry shear loads and align mating parts
• Grade 2 steel construction suitable for general-purpose, non-critical fastening
• Bright uncoated finish — no coating thickness to account for in close-tolerance fits
• Hex head drive accepts standard hex wrenches and impact sockets

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flat washers, and lock washers in inch-system assemblies. Suitable as a general-purpose replacement or new-install fastener in any application where Grade 2 steel and a 1/2-13 UNC thread are specified.

Installation Notes

Installation is performed with a standard hex wrench or impact driver socket sized for a 1/2-inch hex head fastener — confirm the correct wrench size for the head. Ensure mating threads are clean and free of debris before assembly. Apply torque values appropriate for Grade 2 steel at this diameter as specified by the engineer of record or relevant fastener standard. Do not substitute Grade 2 hardware in joints designed for Grade 5 or Grade 8 fasteners without engineering approval.