S-92205A555 1/4"-20 x 2 1/2" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with silicone O-ring that maintains integrity across extreme temperatures from -80°F to 400°F
• Exceptional pressure resistance up to 20,000 psi for demanding industrial applications requiring reliable sealing under high pressure
• Corrosion-resistant construction using 18-8 stainless steel with Rockwell B85 hardness for long-lasting durability in harsh environments
• High tensile strength of 80,000 psi ensures reliable fastening in critical applications where structural integrity is paramount
• Precision threading with Class 2A UNC coarse threads provides secure, vibration-resistant connections with consistent performance
• Easy installation and removal with external hex drive design that accommodates standard wrenching tools for efficient maintenance
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use across various industrial sectors

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw delivers exceptional engineering value in applications where pressure sealing reliability is critical. The combination of 18-8 stainless steel construction and silicone O-ring sealing addresses common industrial challenges of fluid containment, pressure maintenance, and environmental exposure. The partially threaded design ensures optimal clamping force distribution while the coarse thread spacing provides rapid installation in time-sensitive maintenance scenarios. Engineered for high-pressure systems, hydraulic equipment, and industrial machinery, this fastener solves leakage issues in demanding environments where temperature fluctuations and chemical exposure would compromise inferior fasteners. The external hex drive facilitates quick serviceability, reducing downtime in maintenance-critical operations.

Specification Summary & Compliance

This heavy-duty hex head screw features precision Class 2A thread fit with 1/4"-20 UNC coarse threading and 3/4" minimum thread length. Manufactured to exacting standards with 0.269" maximum hole diameter compatibility. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications while meeting international fastener specifications for dimensional accuracy and performance reliability.