Value Collection 581844BR Hex Socket Cap Screw 1-14 Unf

Product Description

The VALUE COLLECTION 581844BR is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. This screw features a 1-14 UNF thread size and measures 4 inches in length under the head, making it suitable for deep-clamp fastening where fine-thread engagement is required. Manufactured from alloy steel and finished with a black oxide coating, it delivers solid corrosion resistance and meets ASME/ANSI B18.3 and ASTM A574 standards. Drive type is hex socket, requiring a 3/4 inch hex key for installation. Threading is partial. Licensed tradespeople and skilled maintenance technicians regularly specify this fastener type for precision-fit assemblies.

This screw is appropriate for use in mechanical and industrial applications where fine-thread, high-tensile fasteners are specified. Partial threading allows the unthreaded shank to act as a precise locating or bearing surface within the joint. The 1-14 UNF designation indicates a 1 inch nominal diameter with 14 threads per inch, suited to applications requiring controlled fit and greater thread strength compared to coarse-thread equivalents. It is commonly used in machine tool, hydraulic, and heavy equipment assemblies where torque-critical joints are standard.

Key Features

• 1-14 UNF thread size for fine-thread engagement and higher thread-strip resistance
• 4 inch length under head for deep joint clamping
• Alloy steel construction meeting ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion and wear resistance
• 3/4 inch hex socket drive for high-torque installation with standard hex keys or sockets
• Partially threaded shank for use as a locating surface within the joint
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard fastener for industrial and mechanical assemblies requiring a 1-14 UNF, 4 inch alloy steel hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 3/4 inch hex key or socket. Always ensure mating threads are clean and free of debris before installation. Apply thread lubricant or anti-seize as specified by the joint design engineer to achieve accurate clamp load. De-energize or lock out any equipment before fastener service in accordance with applicable OSHA lockout/tagout procedures.