S-91737A047 2-56 x 3/16" ASME B18.6.3 Stainless Steel Fillister Head Phillips Screws
Stainless Steel Fillister Head Phillips 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- Superior holding power from 80,000 psi tensile strength and Rockwell B85 hardness, ensuring reliable, long-term fastening.
- Optimized for efficient installation with a No. 1 Phillips drive and fully threaded UNC coarse thread design, reducing assembly time.
- Enhanced head design featuring a high, narrow rounded fillister profile for a lower protrusion and improved aesthetic in finished applications.
- Precision thread fit with Class 2A tolerance on the 2-56 UNC thread, providing consistent engagement and vibration resistance.
- Broad regulatory compliance meeting ASME B18.6.3 standards, RoHS 3, and REACH, ensuring safety and environmental responsibility.
- Versatile 3/16" length and coarse threading for quick, secure fastening in a wide range of materials and panel thicknesses.
Professional Applications & Engineering Value
This 2-56 UNC machine screw is engineered to address critical fastening challenges in precision assemblies. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, medical devices, and marine applications where durability is paramount. The rounded fillister head offers a low-profile, clean appearance while the Phillips drive ensures straightforward installation with standard tools. Its coarse thread and fully threaded design maximize grip in softer materials or thin sheets, preventing stripping and ensuring a secure, vibration-resistant connection that maintains integrity under stress.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with a Class 2A fit for consistent dimensional accuracy. It is manufactured in compliance with ASME B18.6.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and safe for various industrial and consumer applications.
