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Imperial 12-Point Cap Screw Kits (Tapped Flanges)

Imperial 12-Point Cap Screw Kits (Tapped Flanges)

Imperial 12-Point Cap Screw Kits (Tapped Flanges)

TFM’s Imperial 12-Point Cap Screw Kits (Tapped Flanges) are engineered for ultra-reliable performance in vacuum, scientific, and aerospace applications. These fastening kits are specifically designed for tapped flange assemblies where precision, strength, and vacuum compatibility are essential.

Key Features

  • Complete Kit Configuration
    Each Imperial 12-Point Cap Screw Kit (Tapped Flanges) includes premium-grade screws and washers, perfectly matched for tapped ConFlat flange systems. No nuts are required—making assembly faster and cleaner.

  • 12-Point Head Advantage
    The unique 12-point head design allows for superior torque control and even load distribution, ideal for confined or hard-to-reach spaces.

  • Imperial Thread Compatibility
    Threaded to exacting UNC/UNF standards, these screws integrate seamlessly with imperial tapped flange systems for leak-tight connections.

  • UHV-Ready Construction
    Made from corrosion-resistant stainless steel (typically 304 or 316), these fasteners offer exceptional durability in high vacuum and high-temperature environments. All Imperial 12-Point Cap Screw Kits (Tapped Flanges) are available in cleaned and vacuum-sealed versions for cleanroom use.

Applications

  • Tapped Vacuum Flanges (ConFlat)
    Purpose-built for use with tapped ConFlat flanges in vacuum chambers, beamlines, and research tools.

  • Semiconductor Equipment
    Ideal for systems requiring strong, vibration-resistant fasteners that won’t compromise UHV integrity.

  • Scientific Instruments & Aerospace Assemblies
    Trusted in applications demanding precision, cleanliness, and mechanical strength under stress.

Sizes & Options

  • Available in common imperial sizes such as ¼-20, 5/16-24, and 10-32

  • Offered in a variety of lengths to suit flange and gasket configurations

  • Custom kits and materials (e.g., non-magnetic alloys) available upon request

Why TFM?

TFM’s Imperial 12-Point Cap Screw Kits (Tapped Flanges) provide unmatched fastening reliability and performance in critical environments. With expertly machined threads, cleanroom-ready packaging, and industry-trusted durability, these kits are the preferred choice for professionals working with tapped flange systems.

Ordering Table

Flange OD Diameter Part Number
DN35CF-DN40CF (2.75" OD) 1/4" TBK25028088
DN50CF (3.375" OD), DN63CF (4.50" OD), DN75CF (4.625" OD), DN100CF (6.00" OD) 5/16" TBK31224125
DN160CF (8.00" OD), DN200CF (10.00" OD) 5/16" TBK31224175
DN35CF-DN40CF (2.75" OD) 1/4" TBK25028088P
DN50CF (3.375" OD), DN63CF (4.50" OD), DN75CF (4.625" OD), DN100CF (6.00" OD) 5/16" TBK31224125P
DN160CF (8.00" OD), DN200CF (10.00" OD) 5/16" TBK31224175P

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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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