S-90283A189 8-32 x 3/16" ASME B18.6.3 Steel Pan Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Excellent holding power through fully threaded UNC coarse spacing design, preventing loosening under vibration
• High tensile strength rating of 60,000 PSI with Rockwell B60 hardness for reliable performance in demanding applications
• Precision Class 2A thread fit ensuring smooth installation and consistent engagement with mating components
• Standard pan head profile with slotted drive for easy installation using common hand tools
• Comprehensive compliance with ASME B18.6.3 manufacturing standards plus RoHS 3 and REACH environmental regulations
• Right-hand threading with UNC thread type for compatibility with standard industrial components and equipment

Professional Applications & Engineering Value

These 8-32 UNC zinc-plated steel rounded head screws address critical engineering challenges in industrial assembly where corrosion resistance and mechanical strength are paramount. The zinc-plated steel construction provides essential protection against environmental degradation, while the fully threaded coarse spacing ensures maximum grip strength in materials prone to vibration-induced loosening. The combination of 60,000 PSI tensile strength and Rockwell B60 hardness makes these slotted drive screws ideal for machinery, electrical enclosures, and automotive applications where reliable fastening under stress is required. The standard pan head design with slotted drive accommodates quick maintenance and field service without specialized tools.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance across applications. These rounded head screws feature UNC thread type with coarse spacing, 3/16" length, and 0.322" head diameter. Full compliance with ASME B18.6.3 manufacturing specifications ensures dimensional accuracy and reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making them suitable for regulated industrial and commercial applications worldwide.