S-91794A077 2-56 x 1/4" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws
Stainless Steel Fillister 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
- Exceptional corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
- Superior mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term fastening.
- Optimized head design with a high, narrow rounded fillister profile for increased wrenching clearance and a professional finish.
- Easy installation and removal using a standard slotted drive, compatible with common hand tools for efficient assembly.
- Secure and consistent threading with a fully threaded UNC coarse pattern and Class 2A fit, ensuring excellent grip and vibration resistance.
- Broad regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, global industrial use.
- Precise dimensional accuracy in inch measurements, guaranteeing reliable performance in specialized machinery and equipment.
Professional Applications & Engineering Value
This 2-56 UNC rounded fillister head slotted screw is engineered to address critical fastening challenges in precision assemblies. The 18-8 stainless steel construction, enhanced by a passivated finish, provides outstanding resistance to oxidation and chemical exposure, making it suitable for electronics, aerospace, and marine applications where durability is paramount. The high, narrow rounded head offers improved clearance in confined spaces, while the fully threaded coarse UNC design ensures rapid installation and robust holding power against vibrations. With a tensile strength of 70,000 psi and Rockwell B55 hardness, it delivers reliable performance in high-stress environments, reducing maintenance needs and enhancing operational efficiency for B2B clients.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with Class 2A fit for consistent dimensional accuracy and ease of assembly. It complies with ASME B18.6.3 specifications for mechanical fasteners, ensuring high manufacturing standards. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for industrial use.
