S-90604A566 1/4"-20 x 3/8" 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.
- High mechanical strength and durability with a tensile strength of 100,000 psi and Rockwell B100 hardness for reliable, long-lasting fastening.
- Versatile and efficient installation enabled by the combined Phillips/Slotted (No. 3) drive, accommodating different tool types.
- Secure and precise thread engagement with a 1/4"-20 UNC coarse thread and Class 2A fit, ensuring consistent performance.
- Broad industrial compliance meeting ASME B18.6.3 standards, RoHS 3, and REACH regulations for quality and safety assurance.
- Optimized for space-constrained applications with a compact 3/8" length and standard pan head profile for a low-profile, secure fit.
- Full-threaded design provides maximum grip and load distribution along the entire fastener length.
Professional Applications & Engineering Value
This 18-8 stainless steel pan head screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and environmental degradation. The UNC coarse thread and Class 2A thread fit ensure quick, reliable installation with reduced cross-threading risks, while the passivated finish significantly enhances corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions. Its high tensile strength and fully threaded design provide robust clamping force, essential for machinery, electrical enclosures, and structural components where failure is not an option. The combination of Phillips/Slotted drive offers flexibility for maintenance and assembly in tight spaces, supporting efficient operations in manufacturing, automotive, and construction sectors.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including a 1/4"-20 UNC coarse thread with Class 2A tolerance for consistent fit. It is manufactured in compliance with ASME B18.6.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental safety and material integrity.
