S-90283A077 2-56 x 1/4" ASME B18.6.3 Steel Pan Head Slotted Screws
Steel Pan 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
- Enhanced corrosion resistance with zinc plating for reliable performance in various industrial environments
- Superior thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
- Optimized drive efficiency through slotted drive design for straightforward installation with standard tools
- Excellent mechanical strength with Rockwell B60 hardness providing durable, long-lasting fastening solutions
- Maximum thread coverage from fully threaded design offering consistent holding power along the entire 1/4" length
- Broad compatibility with rounded pan head profile fitting standard countersunk applications
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws with 2-56 UNC coarse threading deliver exceptional performance in demanding industrial environments. The combination of Rockwell B60 hardness and fully threaded design ensures reliable fastening in machinery assembly, electronic enclosures, and precision equipment where vibration resistance and consistent clamping force are critical. The slotted drive style provides straightforward installation with standard tools, while the rounded pan head profile offers excellent surface contact and aesthetic finish. Engineered to prevent loosening under dynamic loads, these industrial screws maintain integrity in applications ranging from manufacturing equipment to automotive components, providing engineers with a trusted fastening solution that combines mechanical strength with regulatory compliance.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (2-56 size), these screws ensure proper engagement and reliable performance. The 1/4" length and fully threaded construction provide consistent fastening capability. Compliance with ASME B18.6.3 manufacturing specifications guarantees dimensional accuracy and mechanical properties. Environmental regulations adherence includes RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring safe use in various industrial applications while meeting international environmental standards.
