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Imperial Threaded Rods

Imperial Threaded Rods (Tapped Flanges)

Imperial Threaded Rods (Tapped Flanges)

TFM’s Imperial Threaded Rods for Tapped Flanges are engineered for dependable fastening in vacuum, scientific, and industrial applications that require precise alignment and robust mechanical performance. These threaded rods are ideal for connecting components using tapped holes, commonly found in ConFlat flange systems and other vacuum-compatible assemblies.

Key Features

  • Precision Imperial Threads
    Each rod is machined with unified thread standards (UNC or UNF), ensuring compatibility with standard tapped flange components in imperial units.

  • High-Strength Materials
    Manufactured from corrosion-resistant stainless steel, typically 304 or 316, these rods offer excellent tensile strength, oxidation resistance, and long-term durability even under high vacuum or thermal cycling.

  • Threaded for Full Engagement
    Available in full-thread or partial-thread configurations to accommodate various assembly requirements and ensure secure flange mating and torque control.

  • Vacuum and Cleanroom Ready
    TFM’s rods can be ultrasonically cleaned and vacuum-sealed to minimize outgassing, making them suitable for UHV (ultra-high vacuum) and cleanroom environments.

  • Customizable Lengths and Sizes
    Offered in a wide range of standard imperial sizes (e.g., ¼-20, 10-32, 5/16-18) and lengths, with custom lengths available upon request for specific applications.

Applications

  • Vacuum Chambers and ConFlat Flanges
    Ideal for use in securing ConFlat flange systems, beamline components, and vacuum chamber hardware in research and manufacturing settings.

  • Semiconductor and Thin Film Systems
    Provides stable, clean fastening in plasma systems, deposition tools, and other high-vacuum semiconductor equipment.

  • Industrial and Scientific Equipment
    Used in various instrumentation and mechanical systems requiring high-strength, corrosion-resistant imperial-thread fasteners.

Benefits

  • Easy integration with tapped flanges using imperial threading

  • Superior performance under high heat and vacuum

  • Available with cleanroom-compatible packaging

  • Custom fabrication available for unique system configurations

Why Choose TFM?

TFM’s Imperial Threaded Rods (Tapped Flanges) are precision-manufactured to meet the stringent demands of vacuum technology, aerospace, and scientific instrumentation. With consistent quality, reliable performance, and tailored options, TFM provides fastening solutions trusted in critical environments worldwide.

Ordering Table

Per Package Diameter Thread TPI Length Part Number
1 #8 32 0.75 HCUU0832-075S4
1 1/4" 28 0.38 HCUU2528-038S4
1 5/16" 24 1.75 HCUU3124-175S4
1 5/16" 24 2 HCUU3124-200S4
1 5/16" 24 2.25 HCUU3124-225S4
1 5/16" 24 2.5 HCUU3124-250S4
1 5/16" 24 3 HCUU3124-300S4
1 1/4" 28 1.75 HCUU2528-175S4
1 5/16" 24 3.50 HCUU3124-350S4

 

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FAQ

Tube fittings are designed for tubes (measured by outside diameter and wall thickness) used in high-pressure and instrumentation applications, whereas pipe fittings are for pipes (identified by nominal pipe size) primarily used in fluid transport.

 

Common valve types include ball valves, gate valves, check valves, butterfly valves, and globe valves. Each serves a specific function—from quick shutoff (ball/gate valves) to flow regulation (globe valves).

 

  • For tubing, measure the outside diameter; for pipes, refer to the nominal pipe size (using conversion charts if needed). Always match the valve or fitting size to your pipe’s dimensions and flow requirements.

  • Frequently used thread types include NPT (National Pipe Tapered), BSP (British Standard Pipe), and UNC, along with slip-fit options that rely on compression or fusion rather than threads.

Interchangeability depends on manufacturer specifications and certification. Always verify compatibility via manufacturer guides or certified interchangeability charts.

 

  • A coupling is a short, straight fitting used to join two pipes or tubes. It provides a secure, leak-tight connection and can sometimes serve to extend or repair piping runs.

Consider valve type, pressure and temperature ratings, material compatibility with your fluid, actuation method (manual or automatic), and maintenance requirements.

 

  • Valves regulate flow by opening, closing, or partially obstructing the pathway. Their mechanisms (such as the rotation of a ball or the linear movement of a gate) determine the speed and precision of flow control.

  • A flange is a flat, circular component used to connect pipes, valves, or other equipment. Bolted together with gaskets, flanges provide a secure, leak-proof joint that facilitates both assembly and maintenance.

  • Manual valves require physical operation via handles or levers, whereas actuated valves use mechanisms—pneumatic, electric, or hydraulic—to open and close automatically or remotely.

  • Issues include leaks caused by improper installation, over-tightening, degraded seals, material incompatibility, and fatigue from repeated cycling. Regular inspection and proper installation practices help mitigate these problems.

Regular maintenance involves periodic inspections, cleaning or replacing worn seals, ensuring proper torque during installation, and adhering to manufacturer guidelines and local plumbing codes to preserve system integrity.

 

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