S-91783A187 2-56 x 1" ASME B18.6.3 Stainless Steel Round Head Slotted Screws
Stainless 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 18-8 stainless steel construction and passivated finish, ideal for harsh environments and long-term reliability.
- High tensile strength of 100,000 psi ensures secure, vibration-resistant fastening in demanding industrial applications.
- Coarse UNC threading (2-56) provides faster assembly and reduced cross-threading risk compared to fine threads.
- Class 2A thread fit offers consistent, reliable engagement with standard nuts and tapped holes, minimizing assembly issues.
- Rockwell B100 hardness delivers excellent durability and wear resistance, extending the screw's service life.
- Slotted drive with rounded head allows for easy installation with standard tools while providing a smooth, finished appearance.
- Full compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to strict industry and environmental safety standards.
Professional Applications & Engineering Value
This 2-56 UNC coarse thread screw is engineered to address common industrial fastening challenges, such as corrosion-induced failure and assembly inefficiency. Made from 18-8 stainless steel with a passivated finish, it resists oxidation and chemical exposure, making it ideal for machinery, electronics, and outdoor equipment. The coarse threading and Class 2A fit ensure quick, reliable installation in various materials, reducing labor time and potential damage. With a rounded head and slotted drive, it offers both aesthetic appeal and tool compatibility, supporting consistent performance in industrial applications where strength and corrosion resistance are critical.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy for reliable mating. It is manufactured in compliance with ASME B18.6.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility. The 1" length and fully threaded design provide consistent fastening performance across applications.
