Vented 304/316 Stainless Steel Socket Head Cap Sems Screws with Sealing Wire Hole
Introducing our high-performanceVented Sems Screws, designed for critical applications that require a combination of pressure relief/venting, secure fastening, and tamper indication. These specialized fasteners integrate three key features: a robustSocket Head Cap Screwbody, a pre-assembledthree-piece washer set(flat and lock washers), and a central air passage bore.
Manufactured in both304and316stainless steel options to suit varying corrosion resistance needs.
Key Features
Integrated Venting Bore:A central bore runs through the entire length of the screw, allowing trapped air or gas to escape during installation in sealed chambers (e.g., high vacuum systems, hydraulic lines).
Sems Assembly (3-Piece):Pre-assembled flat washer and spring lock washer remain captive on the screw, simplifying assembly and ensuring compliance with vibration standards.
Security Sealing Wire Hole:A cross-drilled hole in the head allows for the use of safety/lock wire or tamper-evident seals, ensuring that the fastener is not unintentionally loosened or tampered with.
Premium Material Options:Available in304 SS (A2)for general use, and316 SS (A4)for superior resistance in harsh marine or chemical environments.
High Strength Drive:Standard internal hex socket head for reliable torque application.
