S-92800A209 1/4"-28 x 5 1/2" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration
• Precise Class 2A thread fit provides smooth assembly and consistent clamping force in fine-thread applications
• External hex drive design allows for high-torque installation with standard tools, reducing installation time
• Partial threading offers optimal grip length control for secure fastening in specific joint designs
• Rockwell B70 hardness maintains thread integrity and resistance to wear during repeated use
• Full compliance with RoHS 3 and REACH regulations ensures safety and environmental responsibility in industrial settings

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 18-8 stainless steel hex head screws combine corrosion resistance with high tensile strength to solve common challenges in machinery, construction, and marine environments. The 1/4"-28 UNF fine thread with Class 2A fit ensures leak-proof seals and vibration resistance in precision assemblies, while the external hex drive facilitates quick maintenance. Partially threaded design allows focused stress distribution, preventing joint failure in dynamic loads. Ideal for B2B procurement where durability and regulatory compliance are critical.

Specification Summary & Compliance

This screw meets UNF thread standards with Class 2A tolerance for precise fit, featuring a fine thread spacing and right-hand direction. Manufacturing adheres to strict dimensional controls, including 5-1/2" length and 3/4" minimum thread length. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances and supporting industrial safety protocols.