S-93802A533 6-32 x 5/8" MIL-DTL-18240, MS3212-17L, NASM3212, NASM82496 Sealing Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone O-ring and nylon patch thread locker create a reliable seal capable of withstanding pressures up to 6000 psi, preventing leaks in critical applications.
• Exceptional Temperature Resistance: Maintains sealing integrity and mechanical performance across a broad temperature range from -40°F to 400°F, ideal for extreme environment operations.
• High-Strength Construction: Manufactured from 18-8 stainless steel with 70,000 psi tensile strength, providing excellent durability and resistance to corrosion in demanding industrial settings.
• Vibration-Resistant Locking: Nylon patch thread locking feature ensures secure fastening that resists loosening under vibration, reducing maintenance needs and improving safety.
• Enhanced Corrosion Protection: Passivated finish on 18-8 stainless steel significantly improves corrosion resistance, extending service life in harsh chemical or marine environments.
• Standardized Compatibility: UNC coarse Class 2A threads ensure reliable fit and easy installation with standard industrial components, reducing assembly time and errors.
• Regulatory Compliance: Meets MIL-DTL-18240, MS3212-17L, NASM3212 specifications and RoHS 3/REACH regulations, ensuring quality and environmental compliance for aerospace and defense applications.

Professional Applications & Engineering Value

This 6-32 x 5/8" rounded head Phillips screw delivers critical engineering solutions where both secure fastening and environmental sealing are paramount. The combination of 18-8 stainless steel construction with passivated finish provides exceptional corrosion resistance, while the integrated silicone O-ring and nylon patch thread locker create a dual-sealing mechanism that maintains integrity from -40°F to 400°F. This makes it ideal for aerospace assemblies, hydraulic systems, and industrial equipment operating under high-pressure conditions up to 6000 psi. The UNC coarse threading with Class 2A fit ensures quick installation and reliable performance in vibration-prone environments, addressing common failure points in heavy machinery and transportation equipment. Engineered to MIL-DTL-18240 standards, this fastener provides the reliability required for mission-critical applications where failure is not an option.

Specification Summary & Compliance

This rounded head screw features precise 6-32 UNC coarse threads with Class 2A fit tolerance for consistent performance. Manufacturing and quality control adhere to MIL-DTL-18240, MS3212-17L, and NASM3212 specifications, ensuring military-grade reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions. The combination of standardized threading, material specifications, and regulatory compliance makes this fastener suitable for global industrial and aerospace applications requiring certified components.