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Imperial Hex Head Bolt Kits (Tapped Flanges)

Metric Hex Head Bolt Kits (Tapped Flanges)

Metric Hex Head Bolt Kits (Tapped Flanges)

TFM’s Metric Hex Head Bolt Kits for Tapped Flanges are engineered to provide secure, reliable fastening of vacuum flanges using pre-threaded holes. Each kit includes high-quality metric hex bolts and flat washers, making it ideal for assembling components in high and ultra-high vacuum (UHV) systems, semiconductor equipment, and industrial applications.

Metric Hex Head Bolt Kits (Tapped Flanges) Key Features

  • Complete Fastening Kit
    Each kit comes with a matched set of metric hex head bolts and washers, ensuring uniform pressure and simplified assembly for tapped flange connections.

  • Metric Thread Standards
    Manufactured to ISO metric specifications, these bolts ensure precision fit and compatibility with tapped flange hole patterns used globally.

  • High-Performance Materials
    Fabricated from corrosion-resistant stainless steel (typically 304 or 316), the bolts offer strength, chemical resistance, and vacuum compatibility.

  • Hex Head Design for Torque Control
    The hexagonal head style allows for straightforward tightening with standard wrenches, offering consistent torque for secure, leak-free flange assembly.

  • Vacuum-Ready Finish
    All hardware is ultrasonically cleaned and vacuum-packed to minimize contamination — essential for UHV systems and cleanroom environments.

Metric Hex Head Bolt Kits (Tapped Flanges) Applications

  • Vacuum Flange Assembly
    Perfect for sealing tapped flanges in vacuum chambers, fittings, and equipment used in research labs, cleanrooms, and semiconductor fabrication.

  • Semiconductor & Thin Film Equipment
    Ensures stable mechanical connections in systems exposed to cycling vacuum pressures and thermal conditions.

  • Industrial Systems
    Provides durable and precise fastening in fluid, gas, and process equipment that use metric flange interfaces.

Available Options

  • Multiple lengths and diameters

  • Material upgrades (e.g., 316L stainless steel)

  • Custom cleaning and packaging available

Why Choose TFM?

TFM provides vacuum-grade Metric Hex Head Bolt Kits that meet the demanding standards of high-tech industries. With consistent quality, pre-matched hardware, and compatibility with tapped flanges, our kits streamline assembly and improve system integrity.

Ordering Table

Flange OD Length Number of Sets Thread Size Part Number
DN35CF-DN40CF (2.75" OD) 0.98 25 M6 X 1.0P HBKM6X25
DN63CF (4.50" OD) 1.38 25 M8 X 1.25P HBKM8X35
DN100CF (6.00" OD) 1.77 25 M8 X 1.25P HBKM8X45

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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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