S-92949A609 5/16"-24 x 2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable heavy-duty performance
- Precise thread engagement with UNF fine threading and Class 3A fit, ensuring secure fastening and vibration resistance
- Easy installation and removal with 3/16" hex drive and rounded button head design, reducing assembly time
- Full thread coverage along the 2" length for maximum grip and load distribution in thick materials
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for quality assurance and environmental safety
- Durable surface protection from passivation, extending service life in industrial applications
Professional Applications & Engineering Value
This 18-8 stainless steel rounded head screw is engineered to address critical fastening challenges in demanding industrial settings. Its UNF fine threading and Class 3A thread fit provide superior clamping force and resistance to loosening under vibration, making it ideal for machinery, automotive assemblies, and structural frameworks. The passivated finish enhances corrosion resistance, ensuring longevity in humid or chemically aggressive environments. With a hex drive and rounded button head, it offers easy access in confined spaces while maintaining a low profile. Fully threaded along its 2" length, it delivers consistent holding power in thick materials, reducing the risk of joint failure and minimizing maintenance needs in heavy-duty applications.
Specification Summary & Compliance
This fastener features precision 5/16"-24 UNF fine threads with Class 3A fit for tight tolerances and reliable performance. It complies with ASME B18.3 specifications for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations without hazardous substances.
