S-99355A256 10-32 x 3/4" ASME B18.3 Tamper-Resistant Asymmetrical-Drive Stainless Steel Button Head Screws
Tamper-Resistant Asymmetrical-Drive Stainless Steel Button 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 18-8 stainless steel construction, ideal for harsh or humid environments.
- High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under significant load and stress.
- Fine UNF thread with Class 2A fit provides precise engagement and vibration resistance in critical assemblies.
- Fully threaded design maximizes grip and load distribution along the entire 3/4" length.
- Hardness of Rockwell B70 offers excellent durability and resistance to wear and deformation.
- Asymmetrical U10 drive enables secure tool engagement and reduces the risk of cam-out during installation.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees consistent quality and environmental safety for regulated industries.
Professional Applications & Engineering Value
Engineered for precision, this 10-32 UNF rounded head screw in 18-8 stainless steel addresses common industrial challenges such as material fatigue and corrosion. The fine thread and Class 2A fit ensure tight, secure connections in applications where vibration loosening is a concern, such as machinery, electronics, and automotive assemblies. Its fully threaded body and high tensile strength provide uniform stress distribution, reducing the risk of joint failure. The rounded button head offers a low-profile finish, minimizing snagging while the asymmetrical drive enhances torque transmission. Ideal for OEM and MRO uses requiring corrosion-resistant, high-strength fasteners that meet rigorous ASME B18.3 standards.
Specification Summary & Compliance
This screw features a 10-32 UNF fine thread with Class 2A tolerance for precise fit, a length of 3/4", and is fully threaded. It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.
