S-97763A319 4-40 x 3/16" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Precision Class 3A thread fit guarantees secure, vibration-resistant fastening with minimal risk of loosening.
- Hex drive (1/16") and rounded button head design allows for easy installation and a clean, low-profile finish.
- Fully threaded right-hand UNC coarse thread provides maximum grip and faster assembly in various materials.
- Rockwell B55 hardness offers excellent durability and resistance to wear over extended use.
- Compliance with ASME B18.3, RoHS 3, and REACH ensures safety, quality, and environmental standards are met.
Professional Applications & Engineering Value
This 4-40 UNC thread screw with Black-Oxide 18-8 Stainless Steel is engineered to address common industrial challenges such as corrosion, vibration, and assembly efficiency. The rounded button head and hex drive facilitate quick, tool-friendly installation in tight spaces, reducing labor time. Its Class 3A thread fit and coarse threading ensure a tight, reliable hold in materials like metal and plastic, minimizing the risk of strip-out or failure. Ideal for applications in machinery, electronics, and automotive systems, this screw provides long-lasting performance even in demanding conditions, thanks to its high tensile strength and hardness. By meeting ASME B18.3 standards, it delivers consistent quality and interoperability in professional settings.
Specification Summary & Compliance
This screw features precise dimensions: 3/16" length, 4-40 UNC thread size with Class 3A fit for high accuracy, and a right-hand thread direction. It is manufactured in compliance with ASME B18.3 specifications, ensuring uniformity and reliability. Additionally, it adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial use.
