S-92186A701 5/16"-18 x 4 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity under stress
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
- Coarse UNC thread with Class 2A fit offers faster assembly and reduced risk of cross-threading
- External hex drive design allows for high-torque installation with standard tools, improving efficiency
- Partial threading enables secure clamping where unthreaded shank strength is critical
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental standards are met
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw in 316 stainless steel is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress fatigue. The coarse thread design ensures quick, secure fastening in materials like steel and aluminum, while the external hex drive accommodates high torque applications without stripping. With a 4-1/2" length and partial threading, it provides optimal grip length for structural connections in machinery, construction, and marine equipment. The corrosion-resistant properties make it suitable for outdoor, chemical processing, and coastal applications, reducing maintenance costs and extending service life.
Specification Summary & Compliance
This hex head screw features a 5/16"-18 UNC coarse thread with Class 2A thread fit for standard tolerance and ease of assembly. It complies with ASME B18.2.1 manufacturing specifications, ensuring dimensional accuracy and performance reliability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety regulations for hazardous substances.
