S-90273A203 8-32 x 1 1/2" ASME B18.6.3 Steel Phillips Flat Head Screws
Steel Phillips Flat Head 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 zinc-plated steel construction, extending service life in demanding industrial environments
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress
- Optimized drive engagement through Phillips No. 2 drive design, preventing cam-out and ensuring efficient installation
- Secure fastening in various materials with UNC coarse threading and Class 2A thread fit for consistent holding power
- Flush surface installation with standard 82° countersink angle flat head profile, ideal for applications requiring smooth finishes
- Full-length threading provides maximum grip along the entire 1-1/2" length, enhancing pull-out resistance
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These zinc-plated steel flat head screws deliver critical engineering solutions where surface flushness and corrosion resistance are paramount. The combination of UNC coarse threading and Class 2A thread fit ensures reliable performance in wood, plastic, and soft metal applications, resisting vibration-induced loosening. The Phillips No. 2 drive provides sufficient torque transmission while the 82° countersink angle creates seamless integration in countersunk holes. With 60,000 psi tensile strength, these fully threaded screws maintain structural integrity in assembly lines, machinery, and electronic enclosures where right-hand threading facilitates standard installation practices.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC thread form per ASME B18.6.3 specifications. The 8-32 thread size with coarse spacing and 1-1/2" length ensures consistent performance across applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use in various industrial sectors.
