S-90275A191 8-32 x 5/16" ASME B18.6.3 Steel Slotted Flat Head Screws
Steel Slotted 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 load
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Wide compatibility with fully threaded right-hand design fitting standard UNC 8-32 applications
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
- Easy installation and removal with slotted drive design accommodating standard screwdriver tools
Professional Applications & Engineering Value
These 8-32 UNC flat head slotted screws deliver critical engineering solutions where surface-flush fastening and high tensile strength are paramount. The zinc-plated steel construction provides essential corrosion protection for industrial equipment, machinery assemblies, and electronic enclosures exposed to harsh conditions. The UNC coarse threading with Class 2A fit ensures rapid installation and secure holding power in materials where fine threads might strip or fail. The 82° countersink angle allows perfect flush mounting in precision applications, eliminating protrusions that could interfere with moving parts or create safety hazards. These fully threaded fasteners distribute clamping force evenly, making them ideal for securing components in automotive, manufacturing, and electrical applications where vibration resistance and reliability are critical.
Specification Summary & Compliance
Manufactured to exacting inch system dimensions with Class 2A thread fit tolerance ensuring precision mating with standard UNC 8-32 nuts and threaded holes. Complies with ASME B18.6.3 mechanical standards for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety. Features right-hand thread direction with coarse thread spacing optimized for rapid assembly in industrial applications.
