S-91735A302 4-40 x 1 1/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
- Reliable thread engagement through fully threaded design and Class 2A thread fit ensuring consistent fastening performance
- Optimized drive efficiency with Phillips No. 1 drive providing secure tool engagement and reduced cam-out risk
- Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and performance
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries
- Versatile coarse threading with 4-40 UNC threads enabling quick installation and superior holding power
Professional Applications & Engineering Value
These 316 stainless steel rounded head screws deliver critical performance advantages in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The combination of fully threaded 4-40 UNC coarse threading and Class 2A thread fit ensures rapid installation with consistent clamping force, while the passivated finish provides enhanced protection against chemical exposure and atmospheric corrosion. The pan head design with Phillips No. 1 drive offers a low-profile solution that resists snagging while maintaining excellent torque transmission. Ideal for marine equipment, chemical processing machinery, food processing applications, and outdoor industrial installations, these screws address the critical need for durable fastening solutions that withstand aggressive environments without compromising mechanical integrity.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 4-40 UNC coarse threads and full threading along the 1 1/4" length. These screws conform to ASME B18.6.3 dimensional standards and are certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring both mechanical precision and environmental responsibility for industrial applications.
