Value Collection MP39104 Hex Cap Screw 1/2-13 X 1 in Grade 8 25pk

Product Description

The VALUE COLLECTION MP39104 is a fully threaded hex head cap screw designed for high-strength fastening applications across mechanical, structural, and industrial assemblies. Manufactured from Grade 8 steel, this fastener delivers a significantly higher tensile strength than standard Grade 2 or Grade 5 hardware, making it appropriate for heavy-load connections and critical joint applications. The 1/2-13 UNC thread designation indicates a 1/2-inch nominal diameter with 13 threads per inch on a coarse thread profile. The zinc yellow dichromate finish provides corrosion resistance in moderately harsh environments. This screw conforms to ASME B18.2.1 dimensional standards and is sold in a package quantity of 25.

This fastener is used across a wide range of trade and industrial applications including HVAC equipment mounting, mechanical room installations, pump and motor assemblies, structural brackets, and general equipment fabrication. The Grade 8 rating makes it a preferred choice when technicians and fabricators need a fastener that can handle vibration, shear, and tensile loads without yielding. The fully threaded body allows maximum thread engagement for the full 1-inch length under head, which is useful in thinner material assemblies and adjustable joint configurations.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1/2-13 UNC fully threaded profile for maximum thread engagement across the full 1-inch length under head
• Zinc yellow dichromate finish for moderate corrosion resistance
• Conforms to ASME B18.2.1 dimensional standards
• Sold in a 25-piece package for small job or single-repair quantities

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for any application requiring a 1/2-13 UNC hex head cap screw with a 1-inch length under head, Grade 8 material grade, and ASME B18.2.1 compliance.

Installation Notes

Installation is performed by mechanical technicians, millwrights, pipefitters, or HVAC service professionals depending on the application. Always shut down and de-energize equipment before replacing or installing structural fasteners. Use the appropriate hex socket or combination wrench sized for a 1/2-13 fastener and torque to the value specified by the equipment manufacturer or applicable code for Grade 8 hardware. Do not mix Grade 8 fasteners with lower-grade nuts or threaded inserts, as mismatched hardware grades can reduce joint integrity.