Value Collection 011397PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 011397PR is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. This fully threaded fastener features a 1/2-20 UNF thread size and measures 1.5 inches in length under the head. It is driven with a 3/8 inch hex key. Manufactured from alloy steel and finished with a black oxide coating, the 011397PR delivers solid corrosion resistance and surface hardness suitable for demanding service environments. Machinists, maintenance technicians, and assembly professionals typically spec this type of fastener where precision thread engagement and high clamp load are required.

This hex socket cap screw is suited for use in machine frames, tooling fixtures, jigs, hydraulic assemblies, and general mechanical equipment where a flush or recessed fastener head is preferred. The 1/2-20 UNF fine thread pitch provides superior thread engagement and torque retention compared to coarse thread equivalents, making it a common choice in precision equipment and metal-to-metal joints. The black oxide finish reduces light reflection and offers mild protection against moisture in indoor and sheltered environments.

Key Features

• 1/2-20 UNF fine thread for precise torque and strong thread engagement
• 1.5 inches length under head, fully threaded
• 3/8 inch hex drive compatible with standard hex keys and T-handle drivers
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide coating provides mild corrosion resistance and low-reflectance finish

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for machinery and mechanical assemblies requiring 1/2-20 UNF hex socket cap screws per ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 3/8 inch hex key or socket drive. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or thread-locking compound as specified by the equipment manufacturer. Do not exceed the rated torque specification for the fastener grade and application.