S-92949A086 2-56 x 1" 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 18-8 stainless steel and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness to withstand high-stress applications
- Precise thread engagement with Class 3A fit and UNC coarse threads ensuring reliable fastening and vibration resistance
- Efficient installation using 0.050" hex drive for secure tool engagement and reduced slippage during assembly
- Full thread coverage along the 1" length provides maximum grip and load distribution across connected materials
- Compact rounded button head design offers a low-profile finish while minimizing snagging in confined spaces
- Regulatory compliance with ASME B18.3, RoHS 3, and REACH ensures material safety and industry-standard reliability
Professional Applications & Engineering Value
These 2-56 UNC threaded rounded head screws deliver critical performance in precision assemblies where space constraints and material integrity are paramount. The 18-8 stainless steel construction combined with a passivated finish provides excellent resistance to oxidation and chemical exposure, making them ideal for electronics enclosures, medical devices, and marine equipment. The hex drive design prevents cam-out during high-torque installation, while the Class 3A thread fit and coarse thread spacing ensure rapid assembly and secure fastening in metals and engineered plastics. Fully threaded along the 1" length, these button head screws maintain consistent clamping force, reducing the risk of joint failure in vibrating or dynamic load conditions.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit and UNC coarse thread profile. The screws feature a right-hand thread direction, 0.086" thread diameter, and standard rounded button head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations is verified, ensuring environmental safety and material traceability for industrial and commercial applications.
