Value Collection 581780BR Hex Socket Cap Screw 7/8-14 Unf

Product Description

The VALUE COLLECTION 581780BR is a hex socket cap screw designed for high-strength fastening applications where precise torque and a low-profile head are required. It features a 7/8-14 UNF thread size with a 2.5-inch length under the head and is fully threaded along its entire length. The 3/4-inch hex drive accepts a standard hex key or Allen-type driver. Constructed from alloy steel with a black oxide finish, this fastener offers solid mechanical strength and moderate corrosion resistance in controlled environments. It meets ASME/ANSI B18.3 and ASTM A574 standards and is suited for use by machinists, millwrights, maintenance technicians, and industrial assembly professionals.

This cap screw is appropriate for industrial machinery, tooling fixtures, hydraulic assemblies, and structural mechanical connections where fine-thread engagement and high clamp load are needed. The 7/8-14 UNF fine thread pitch provides greater thread engagement per inch compared to coarse thread equivalents, making it well suited for high-vibration environments or applications requiring precise preload adjustment. It is sold individually with a minimum order quantity of 10 units.

Key Features

• 7/8-14 UNF fine thread for high clamp load and vibration resistance
• Fully threaded 2.5-inch length under head for maximum engagement flexibility
• 3/4-inch hex socket drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduced light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-spec fastener for industrial machinery, fixtures, and mechanical assemblies requiring a 7/8-14 UNF hex socket cap screw per ASME/ANSI B18.3.

Installation Notes

Installation is typically performed by machinists, maintenance technicians, or millwrights using a calibrated torque wrench with a 3/4-inch hex bit. De-energize and lock out all equipment before fastener replacement or installation per applicable OSHA lockout/tagout procedures. Inspect mating threads for damage or contamination before assembly. Do not substitute thread-locking compounds or anti-seize without verifying compatibility with the joint design.