S-91792A112 4-40 x 5/8" ASME B18.6.3 Stainless Steel Pan Head Slotted Screws
Stainless Steel Pan Head 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 with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under high stress
- Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
- Optimized drive compatibility featuring standard slotted drive for broad tool accessibility and straightforward installation
- Enhanced head design with rounded pan profile providing improved clearance and professional appearance
- Full threading along 5/8" length delivers maximum grip and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 4-40 UNC rounded pan head slotted screws deliver critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The combination of 18-8 stainless steel material with passivated surface treatment creates a robust barrier against chemical exposure and atmospheric corrosion, making them ideal for marine, food processing, and outdoor equipment applications. The coarse thread design provides superior holding power in softer materials and resists loosening under vibration, while the fully threaded 5/8" length ensures maximum engagement depth for structural integrity. The slotted drive system offers compatibility with standard tools for maintenance flexibility across diverse industrial settings.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread form (4-40 size) ensuring interchangeability and proper assembly. Complies with ASME B18.6.3 mechanical standards for pan head slotted screws, RoHS 3 (2015/863/EU) for hazardous substance restriction, and REACH (EC 1907/2006) regulations for chemical safety. The manufacturing process maintains consistent Rockwell B100 hardness and 100,000 psi tensile strength specifications throughout production.
