1/4" - 28 NF - Left-Hand Adjustable Round Fractional Die - Hanson

Specifications

• Manufacturer: Hanson
• Model Number: 7523
• Nominal Diameter: 1/4 inch
• Thread Pitch: 28 threads per inch (TPI)
• Thread Series: NF (National Fine)
• Thread Direction: Left-Hand (LH)
• Die Form: Adjustable Round Fractional Die

Key Features

• Left-Hand Threading: Specifically engineered for cutting or restoring reverse (left-hand) threads, essential for applications where standard right-hand threads would loosen.
• Adjustable Design: Features a split adjustable design, allowing precise control over the thread's outside diameter for optimal fit and finish, accommodating various material hardnesses or minor wear.
• Round Form Factor: Manufactured as a round die, ensuring compatibility with standard round die stocks for straightforward integration and ease of use in diverse setups.
• National Fine (NF) Thread: Cuts 28 threads per inch in the National Fine series, providing a high-strength, fine-pitch thread suitable for applications demanding secure fastening and vibration resistance.
• Fractional Sizing: Adheres to standard fractional dimensions (1/4 inch nominal diameter), simplifying identification and ensuring compatibility with existing fractional tooling.

Applications

• Thread Repair: Ideal for restoring damaged 1/4" - 28 NF left-hand threads on bolts, studs, and shafts, preventing costly component replacement.
• New Thread Creation: Use this die to cut new external left-hand threads on various metal rods or components for custom fabrication and specialized assemblies.
• Automotive Maintenance: Essential for specific automotive fasteners, such as certain lug nuts, specialty bolts, or steering linkages that utilize left-hand threads to prevent self-loosening.
• Machinery and Equipment: Useful in industrial settings for repairing or creating threads on parts where reverse rotation or specific torque requirements necessitate left-hand threading.
• Restoration Projects: Supports accurate re-threading of vintage or unique components that originally featured left-hand threads, ensuring authenticity and functionality.

Benefits

• Cost-Effective Repair: Enables the repair of damaged left-hand threads, significantly reducing expenses compared to replacing an entire specialized component or assembly.
• Optimal Thread Fit: The adjustable design allows users to fine-tune the thread diameter, ensuring a perfect, snug fit that prevents stripping or loosening and extends fastener lifespan.
• Enhanced Security: By creating or restoring specialized left-hand threads, this die helps secure fasteners that would otherwise loosen under reverse rotation or specific operational stresses.
• Increased Versatility: Provides the capability to work with unique or specialized fasteners, broadening repair and fabrication possibilities for custom projects or uncommon machinery.
• Precise Threading: Delivers clean, accurate 1/4" - 28 NF left-hand threads, crucial for maintaining structural integrity and operational reliability in critical applications.