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Vented Stainless Steel Bolts (metric)

Vented Stainless Steel Bolts (SI)

Vented Stainless Steel Bolts (SI) from TFM: Precision Fastening with Built-In Pressure Relief

When performance and reliability are paramount in vacuum, scientific, or industrial systems, Vented Stainless Steel Bolts (SI) from TFM provide the ideal fastening solution. These specialty bolts are engineered to offer both robust mechanical strength and built-in venting, making them a must-have in environments where pressure equalization is critical to component safety and system performance.

What Are Vented Stainless Steel Bolts (SI)?

Vented bolts are uniquely designed fasteners that feature a precision-machined hollow core or longitudinal venting channel. This design allows trapped gases or air to escape during installation or system operation. Made from high-grade stainless steel, these SI-standard vented bolts combine mechanical durability with resistance to corrosion, making them suitable for use in ultra-high vacuum (UHV), cleanroom, or pressure-sensitive applications.

Key Features of TFM’s Vented Stainless Steel Bolts (SI)

  • Internal Vent Passage: Designed to vent trapped gas or pressure in vacuum assemblies, minimizing the risk of virtual leaks and contamination.

  • Stainless Steel Construction: Built from premium-grade stainless steel to resist oxidation, chemical corrosion, and mechanical wear.

  • SI Thread Standard: Compatible with metric components and systems built around System International (SI) standards.

  • Precision Machining: Manufactured with tight tolerances to ensure a secure, vibration-resistant fastening while preserving venting effectiveness.

  • Cleanroom Ready: Ideal for clean applications, such as semiconductor fabrication or scientific instrumentation, where pressure equilibrium and cleanliness are crucial.

Applications of Vented Stainless Steel Bolts (SI)

TFM’s vented stainless steel bolts are designed for specialized use across a variety of advanced fields. Key application areas include:

  • Vacuum Chambers & UHV Systems: Essential for minimizing outgassing and virtual leaks, supporting stable vacuum environments.

  • Semiconductor Equipment: Used in precision assemblies where pressure differentials and particle generation must be strictly controlled.

  • Aerospace & Defense: Ideal for systems exposed to rapid altitude or pressure changes, requiring pressure-equalized fasteners.

  • Cryogenic & High-Temperature Systems: Maintain secure fastening while withstanding temperature extremes and pressure variations.

  • Research Laboratories: Found in scientific apparatus where system integrity and contamination control are non-negotiable.

Why Choose TFM’s Vented Bolts?

TFM is a trusted source of advanced materials and fasteners tailored to meet the stringent requirements of high-tech industries. When you select Vented Stainless Steel Bolts (SI) from TFM, you gain the benefit of:

  • Uncompromising Quality: Our bolts are machined from high-purity stainless steel and inspected for dimensional accuracy and venting functionality.

  • Industry Expertise: We understand the technical demands of vacuum systems, cleanrooms, and precision mechanical assemblies.

  • Broad Compatibility: Offered in various SI metric sizes for seamless integration into global systems.

  • Fast Delivery & Support: With quick shipping and responsive technical assistance, we help keep your projects on schedule and within spec.

Dimensional Drawings

For detailed specifications, please refer to the dimensional drawings provided below. These drawings illustrate the precise measurements and design features of our vented hex head bolts to ensure compatibility with your applications.

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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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