Value Collection 011239PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 011239PR is a hex socket cap screw designed for high-strength mechanical fastening in precision assemblies. It features a 5/16-24 UNF thread, a 1-3/4-inch length under head, and a 1/4-inch hex drive. Manufactured from alloy steel and finished with black oxide coating, this fastener provides solid corrosion resistance in moderate environments while maintaining the tensile strength required for demanding applications. The partially threaded shank allows for accurate clamping without thread engagement through the full grip length. Installation is performed with a 1/4-inch hex key or Allen driver. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for structural and mechanical fastening tasks across industrial and trade applications.

This screw is used in mechanical assemblies, equipment manufacturing, and maintenance repair operations where a fine-thread, high-strength cap screw is required. The 5/16-24 UNF thread pitch is well-suited for applications requiring greater thread engagement strength than coarse-thread equivalents, including motor mounts, brackets, enclosures, and precision machinery. It is commonly installed by millwrights, maintenance technicians, and mechanical contractors working on industrial or commercial equipment. Sold in a minimum order quantity of 100 pieces per order.

Key Features

• 5/16-24 UNF fine thread for high tensile load capacity in precision assemblies
• 1-3/4-inch length under head with partial threading for accurate clamping
• Alloy steel construction meets ASTM A574 high-strength fastener specification
• Black oxide finish provides moderate corrosion resistance and reduces light reflection
• 1/4-inch hex socket drive compatible with standard hex keys and Allen drivers
• Conforms to ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for any application requiring a 5/16-24 UNF hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574 standards.

Installation Notes

Installation requires a 1/4-inch hex key or Allen-drive tool torqued to the fastener specification for the mating material and joint design. Ensure mating threads are clean and free of debris before installation. Do not exceed the design torque for the joint or mating component. Always de-energize and lock out equipment before replacing fasteners on powered machinery per applicable OSHA lockout/tagout procedures.