S-90604A555 4-40 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Combination Phillips/Slotted Screws
Stainless Steel Pan Head Combination Phillips/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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- Exceptional mechanical strength with a tensile strength of 100,000 psi and Rockwell B100 hardness for reliable, long-lasting fastening.
- Wide compatibility and easy installation offered by the combination of Phillips/Slotted drive and standard UNC coarse threads.
- Precise and secure thread engagement ensured by the Class 2A thread fit and fully threaded design.
- Compliance with major industry standards including ASME B18.6.3, ensuring consistent quality and performance.
- Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations.
- Versatile rounded pan head design provides a low-profile, finished appearance and reduces surface damage.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 4-40 UNC coarse thread screw is built from 18-8 Stainless Steel to combat rust and chemical exposure, making it perfect for machinery, electronics, and outdoor equipment. The passivated finish enhances its corrosion resistance, extending service life in challenging conditions. Its fully threaded body and Class 2A thread fit ensure maximum grip and vibration resistance, preventing loosening in high-stress assemblies. The combination of a Phillips/Slotted drive allows for flexible installation with common tools, streamlining production lines. By meeting ASME B18.6.3 specifications, it guarantees dimensional accuracy and reliability, reducing downtime and maintenance costs in industrial screw applications.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with a Class 2A thread fit for precise tolerances, a length of 3/4", and a rounded pan head with a No. 1 drive size. It is manufactured in compliance with ASME B18.6.3 standards and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence.
