S-92949A413 3-56 x 3/8" 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 and passivated finish, ideal for harsh environments and extended service life.
- High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress and vibration.
- Precision Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading during installation.
- Fine UNF thread design offers superior holding power and resistance to loosening in dynamic applications.
- Hex drive (1/16") and rounded button head allow for easy installation with standard tools and a low-profile, finished appearance.
- Full threading along the 3/8" length maximizes grip range and provides consistent fastening strength.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees material safety and adherence to strict industrial and environmental standards.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 3-56 UNF fine thread rounded head screws address critical challenges in precision assembly. The 18-8 stainless steel construction, enhanced by a passivated finish, combats corrosion in moist or chemical-exposed environments, reducing maintenance needs and part replacement. The fine thread and Class 3A fit ensure tight, secure fastening in materials prone to stripping, such as thin metals or plastics, while the hex drive and rounded button head facilitate quick, tool-accessible installation in confined spaces. Ideal for electronics, machinery, and automotive components, these screws deliver reliable tensile strength and durability, minimizing downtime and enhancing product longevity in industrial applications.
Specification Summary & Compliance
This screw features a 3-56 UNF fine thread with a Class 3A precision fit, ensuring tight tolerances and reliable performance. It is manufactured in accordance with ASME B18.3 standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and adherence to environmental safety requirements.
