S-92949A354 5/8"-11 x 1 1/4" 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 with 18-8 stainless steel construction and passivated finish, ideal for harsh environments.
- Exceptional tensile strength of 70,000 psi and Rockwell B55 hardness for reliable performance in heavy-duty applications.
- Precise Class 3A thread fit ensures secure, vibration-resistant fastening with minimal risk of loosening.
- Easy installation and removal with a 3/8" hex drive and fully threaded UNC coarse thread design.
- Durable rounded button head provides a low-profile, aesthetically pleasing finish while reducing snagging risks.
- Full compliance with ASME B18.3 standards, guaranteeing dimensional accuracy and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe industrial use.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 5/8"-11 UNC 18-8 stainless steel rounded head screw delivers robust performance where corrosion and mechanical stress are concerns. The passivated finish enhances the natural corrosion resistance of 18-8 stainless steel, making it suitable for outdoor equipment, marine hardware, and chemical processing plants. Its Class 3A thread fit and coarse thread design provide excellent grip in softer materials and resist vibration-induced failures. The hex drive allows for high-torque installation, ensuring reliable connections in structural assemblies, machinery, and heavy-duty frames. With a fully threaded shank and 1-1/4" length, it offers consistent clamping force, reducing the need for additional fasteners and streamlining assembly processes.
Specification Summary & Compliance
This screw features a 5/8"-11 UNC coarse thread with Class 3A fit for precise threading and dimensional accuracy per ASME B18.3. It is manufactured from 18-8 stainless steel with a passivated finish, ensuring durability and corrosion resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use.
