S-91792A117 4-40 x 1 1/4" 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 and passivated finish for long-lasting performance in harsh environments
- High tensile strength of 100,000 psi ensures reliable fastening under significant mechanical stress
- Class 2A thread fit provides consistent, smooth assembly with standard UNC coarse threads
- Fully threaded design offers maximum grip and holding power across the entire screw length
- Slotted pan head design allows for easy installation with standard screwdrivers while providing a low-profile finish
- Compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability
- Environmental regulation compliance with RoHS 3 and REACH ensures safe use in regulated industries
Professional Applications & Engineering Value
These 4-40 UNC rounded pan head slotted screws deliver exceptional engineering value across industrial applications where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel construction combined with passivated surface treatment creates a protective barrier against oxidation and chemical exposure, making them ideal for machinery, electronic enclosures, and marine equipment. The coarse UNC threading ensures quick assembly and reduced cross-threading risks in production environments, while the fully threaded design provides uniform stress distribution. With 100,000 psi tensile strength and Rockwell B100 hardness, these fasteners maintain integrity in high-vibration applications, solving common failure points in industrial assembly while meeting strict dimensional standards.
Specification Summary & Compliance
This 1 1/4" slotted pan head screw features precise Class 2A thread fit with 4-40 UNC coarse threading and right-hand orientation, manufactured to ASME B18.6.3 specifications for dimensional accuracy. The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for global industrial applications.
