Value Collection 581925BR Hex Socket Cap Screw 1-1/4-12 Unf

Product Description

The VALUE COLLECTION 581925BR is a partially threaded hex socket cap screw designed for high-strength bolted connections in industrial, mechanical, and structural applications. It features a 1-1/4-12 UNF thread profile, a 6-inch length under head, and a 7/8-inch hex drive socket. Constructed from alloy steel with a black oxide finish, this fastener delivers strong tensile performance and moderate corrosion resistance. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding load-bearing assemblies where precise thread engagement and controlled clamping force are required.

This cap screw is used in heavy equipment manufacturing, machine building, die and mold assemblies, and general industrial maintenance. The fine 12-pitch UNF thread provides greater tensile strength and better resistance to loosening under vibration compared to coarse thread equivalents. The partially threaded shank allows for a clean bearing surface in through-hole or clearance-hole applications. Millwrights, maintenance mechanics, and industrial technicians are the primary installers in both OEM production and field repair settings.

Key Features

• 1-1/4-12 UNF fine thread for superior tensile load and vibration resistance
• 6-inch length under head with partial threading for clean shank engagement
• 7/8-inch hex socket drive for use with standard Allen or hex key tooling
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides moderate corrosion resistance and reduces light glare
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style and replacement fastener for industrial assemblies requiring a 1-1/4-12 UNF partially threaded hex socket cap screw in alloy steel per ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation should be performed by qualified millwrights or maintenance mechanics using a properly sized 7/8-inch hex key or socket driver. Always clean and inspect threaded holes before installation and ensure the mating thread class and material are compatible with alloy steel fasteners. De-energize and lock out all equipment per OSHA LOTO procedures before replacing fasteners in live machinery. Do not exceed the rated clamp load for the joint design; consult engineering specifications for torque requirements.