S-90276A855 2-56 x 1/8" ASME B18.6.3 Steel Round Head Slotted Screws
Steel Round Head Slotted 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 zinc-plated steel construction, extending service life in demanding environments
- Reliable fastening performance with Class 2A thread fit ensuring consistent engagement and vibration resistance
- High tensile strength of 60,000 psi provides secure, durable connections in mechanical assemblies
- Easy installation and removal with standard slotted drive and rounded head design
- Optimized for coarse threading applications using UNC 2-56 threads for quick assembly in softer materials
- Full threading along 1/8" length enables maximum grip and uniform load distribution
- Compliance with industry standards including ASME B18.6.3 and environmental regulations
Professional Applications & Engineering Value
This zinc-plated steel rounded head slotted screw delivers exceptional engineering value for industrial fastening applications where corrosion resistance and mechanical reliability are critical. The UNC coarse threading with Class 2A fit ensures rapid installation in machinery, electronics, and equipment assemblies while maintaining precise tolerances. The combination of 60,000 psi tensile strength and Rockwell B69 hardness provides durable performance in vibration-prone environments. The rounded head profile with standard slotted drive offers compatibility with common tools, making it ideal for maintenance and production lines where efficiency matters. These fully threaded screws are engineered to prevent loosening under dynamic loads while the zinc plating protects against environmental degradation in industrial settings.
Specification Summary & Compliance
This fastener features precise Class 2A thread fit with UNC 2-56 coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, ensuring environmental responsibility. With a head diameter of 0.162" and length of 1/8", this fully threaded screw maintains consistent quality for industrial applications requiring inch system measurements.
