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Vichok Hardware

UNC/UNF 304 Imperial Screw Hex Low Head Hollow Exhaust Threading Thin Head Fastener

UNC/UNF 304 Imperial Screw Hex Low Head Hollow Exhaust Threading Thin Head Fastener

Regular price $4.12 USD
Regular price $4.12 USD Sale price $4.12 USD
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Product specifications
Designed for precision industrial applications, our 304 Stainless Steel UNC/UNF Imperial Low Head Hex Vacuum Hollow Exhaust Screws combine corrosion resistance, standardized threading, and specialized hollow exhaust functionality. Ideal for vacuum systems, pneumatic equipment, and machinery requiring pressure equalization, these screws deliver reliable fastening and air release performance for professional assemblies.
 

Core Features & Benefits

 
  1. 304 Stainless Steel for Long-Term Durability
     
    Crafted from high-quality 304 stainless steel, these screws offer excellent resistance to oxidation, humidity, and mild chemical erosion. This makes them well-suited for workshop environments, vacuum chambers, and pneumatic systems, where rust buildup could compromise thread integrity or sealing performance, ensuring consistent operation over time.
  2. UNC/UNF Imperial Thread for Universal Compatibility
     
    Precision-machined to comply with both UNC (Unified Coarse) and UNF (Unified Fine) imperial thread standards, the screws seamlessly fit American-made machinery, valves, and fixtures. Their consistent thread pitch prevents cross-threading during installation, forming tight, stable connections that align with industrial assembly requirements.
  3. Low Thin Hex Head & Hollow Exhaust Design
     
    The low-profile thin hex head is engineered for tight, recessed mounting spaces, making it perfect for compact machinery with limited clearance. Its hollow core enables efficient air exhaust and vacuum pressure equalization, eliminating trapped air in sealed systems and ensuring smooth, uninterrupted operation of pneumatic cylinders and vacuum equipment.
  4. Vacuum-Grade Performance & Pressure Relief
     
    Tailored for vacuum system use, the screws feature a smooth thread finish and precise machining to minimize air leakage, maintaining stable vacuum pressure. Additionally, their exhaust function supports safe pressure relief in hydraulic systems and enclosed mechanical components, reducing operational risks and enhancing equipment reliability.
  5. Versatile Industrial Applications
     
    Suitable for a range of professional scenarios, including vacuum equipment assembly, pneumatic system installation, machinery valve fitting, and automotive component fastening. This screw integrates imperial thread compliance, hollow exhaust functionality, and 304 stainless steel durability to meet the needs of engineers and industrial procurement teams.
 

Specifications

 
  • Material: 304 Corrosion-Resistant Stainless Steel
  • Thread Standard: UNC (Unified Coarse) / UNF (Unified Fine), Imperial
  • Design: Low Thin Hex Head, Hollow Core, Exhaust Function, Vacuum-Grade
  • Applications: Vacuum Systems, Pneumatic Equipment, Machinery, Valves, Automotive Components
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