S-93802A838 1/4"-20 x 3/4" MIL-DTL-18240, MS3212-52L, NASM3212, NASM82496 Sealing Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Withstands up to 6000 psi pressure and includes a silicone rubber O-ring for reliable leak-proof sealing in demanding environments.
• Vibration-Resistant Locking: Nylon patch thread locker ensures secure fastening that resists loosening under vibration, maintaining joint integrity.
• Excellent Corrosion Resistance: Made from 18-8 stainless steel with a passivated finish for enhanced durability in harsh or corrosive conditions.
• Wide Temperature Tolerance: O-ring functions from -80° to 400° F and thread locker from -40° to 225° F, suitable for extreme thermal applications.
• High Tensile Strength: 70,000 psi tensile strength provides robust load-bearing capacity for critical assemblies.
• Easy Installation: Phillips drive (No. 3) and UNC coarse threads allow for quick, straightforward assembly with standard tools.
• Regulatory Compliance: Meets MIL-DTL-18240, RoHS 3, and REACH standards, ensuring quality and environmental safety for industrial use.

Professional Applications & Engineering Value

This 18-8 stainless steel pan head screw is engineered to address common industrial challenges such as fluid leakage, vibration-induced loosening, and corrosion. The combination of a silicone rubber O-ring and nylon patch locking creates a dual-sealing and vibration-resistant solution, ideal for high-pressure applications in hydraulic systems, pneumatic equipment, and machinery. The passivated finish enhances corrosion resistance, extending service life in moist or chemical-exposed environments. With UNC coarse threads and a Class 2A thread fit, it ensures precise engagement and reliable performance in industrial fastening scenarios, reducing maintenance needs and downtime.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A fit for standard tolerance and easy assembly. It complies with specifications including MIL-DTL-18240 (referencing MS3212-52L, NASM3212, and NASM82496), ensuring adherence to rigorous manufacturing standards. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global industrial use.