S-97619A890 1/4"-20 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to premium 316 stainless steel construction
• Exceptional mechanical strength with ASTM Grade 8M rating for demanding industrial applications
• Enhanced wrenching surface provided by the extra-wide hex profile for better torque application and reduced slipping
• Reliable coarse threading (UNC) ensures quick assembly and resistance to vibration loosening
• Precise Class 2B thread fit guarantees consistent engagement and smooth installation with mating bolts
• Full regulatory compliance with RoHS 3 and REACH for safe use in regulated industries
• Heavy-duty durability backed by ASTM A194 manufacturing standards for long service life

Professional Applications & Engineering Value

Engineered for industrial applications where exposure to corrosive elements is a constant challenge, this heavy-duty hex nut delivers uncompromising performance. The 316 stainless steel material provides excellent resistance to chlorides and acidic environments, significantly reducing maintenance costs and downtime. Its UNC coarse thread and Class 2B fit ensure rapid, secure fastening in high-vibration settings like machinery, marine equipment, and chemical processing plants. The extra-wide hex profile offers a larger contact area for tools, minimizing wear and enabling higher torque values without damaging the fastener. This combination of corrosion resistance, high strength (Grade 8M), and reliable threading solves critical fastening problems in infrastructure, transportation, and offshore projects where failure is not an option.

Specification Summary & Compliance

This hex nut meets Class 2B thread fit tolerances per unified inch standards, ensuring precise compatibility with mating 1/4"-20 UNC bolts. Manufacturing and material quality are verified under ASTM A194 specifications, while mechanical performance aligns with ASTM Grade 8M requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and safety-focused industrial supply chains.