Value Collection 581519PR Hex Socket Cap Screw 7/16-20 Unf

Product Description

The VALUE COLLECTION 581519PR is a hex socket cap screw designed for high-strength fastening in mechanical, structural, and industrial assemblies. It features a 7/16-20 UNF thread size with a 5/8-inch length under head and is fully threaded from head to tip. The 3/8-inch hex drive socket accepts a standard hex key or Allen driver. Manufactured from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and hardness appropriate for load-bearing applications. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice where dimensional and mechanical compliance is required. Installation is handled by maintenance technicians, millwrights, and machine builders across a wide range of trades.

This screw is suited for use in tight-clearance applications where a wrench cannot access the fastener head. The low-profile socket cap head and fine UNF thread pitch make it well matched for precision machinery, hydraulic components, jigs and fixtures, and similar assemblies where controlled clamping force and vibration resistance are priorities. The black oxide coating is compatible with oil-lubricated environments common in industrial and production settings.

Key Features

• 7/16-20 UNF fine thread for improved vibration resistance and precise torque control
• Fully threaded along the 5/8-inch length under head for maximum thread engagement
• 3/8-inch hex socket drive for use with standard hex keys or socket drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard-specification hex socket cap screw for use in any application requiring a 7/16-20 UNF fully threaded fastener with a 3/8-inch hex drive, conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Install and remove using a correctly sized 3/8-inch hex key or Allen socket to avoid rounding the drive recess. Ensure the mating threaded hole is clean and free of debris before installation. De-energize or depressurize any system before fastener service where applicable. Apply thread lubricant or thread-locking compound as required by the assembly specification.