S-93802A221 0-80 x 1/4" MIL-DTL-18240 Sealing Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated silicone O-ring that withstands temperatures from -80° to 400° F, preventing fluid and gas leaks in high-pressure applications up to 6000 psi
• Vibration-resistant locking through nylon patch thread locker that maintains secure fastening across a wide temperature range (-40° to 225° F), reducing maintenance needs
• Exceptional corrosion resistance from 18-8 stainless steel construction with passivated finish, ensuring long-term reliability in harsh industrial environments
• Precise thread engagement with Class 2A UNF fine threads providing superior holding power and consistent performance in critical assemblies
• Optimized drive efficiency featuring Phillips No. 0 drive style with pan head design for easy installation and removal while preventing cam-out
• Maximum material compatibility with fully threaded design and rounded head profile, suitable for various industrial materials and thicknesses
• Regulatory compliance assurance meeting MIL-DTL-18240 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 0-80 UNF Phillips pan head screw delivers critical sealing solutions for demanding industrial applications where pressure integrity and vibration resistance are paramount. Engineered with 18-8 stainless steel and passivated finish, it withstands corrosive environments while maintaining its 70,000 psi tensile strength. The combination of nylon patch thread locker and silicone O-ring creates a dual-sealing mechanism that prevents both loosening from vibration and leakage under pressures up to 6000 psi. This makes it ideal for hydraulic systems, pneumatic equipment, and precision instruments where reliable performance in temperature extremes (-40° to 400° F) is essential. The Class 2A UNF fine threads ensure precise fitment in critical assemblies, while the fully threaded design provides maximum engagement strength across various material thicknesses.

Specification Summary & Compliance

This rounded head screw features precision Class 2A thread fit with UNF (Unified National Fine) threading standard and right-hand thread direction. Manufacturing complies with MIL-DTL-18240 specifications, ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial components. Thread dimensions maintain exact 0-80 UNF specifications with 0.06" thread diameter and 1/4" length for precise application requirements.