S-91500A835 10-32 x 1 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and chemical exposure
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and prevents fastener failure under stress
• Precision Class 2A thread fit provides smooth assembly and consistent clamping force in fine-thread applications
• Optimized Phillips drive design allows for efficient installation with standard tools while minimizing cam-out risks
• Full threading along the 1-1/4" length enables maximum adjustability and secure fastening in varying material thicknesses
• 82° countersink angle and flat head profile create a flush surface finish for streamlined assemblies and improved aesthetics
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees consistent quality and environmental responsibility for industrial use

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The 316 stainless steel composition, enhanced by passivated surface treatment, provides superior protection against chlorides, acids, and marine atmospheres—making these fasteners ideal for chemical processing equipment, marine hardware, and food-grade applications. The fine UNF threads and Class 2A fit ensure vibration resistance and precise engagement in thin-section materials, while the fully threaded design accommodates varying material thicknesses without compromising holding power. With Rockwell B80 hardness and optimized Phillips drive, these screws maintain structural integrity during installation and throughout their service life, reducing maintenance costs and assembly failures in critical applications.

Specification Summary & Compliance

These precision flat head screws feature 10-32 UNF fine threads with Class 2A thread fit tolerances, ensuring consistent dimensional accuracy and reliable performance. Manufacturing strictly adheres to ASME B18.6.3 specifications for dimensional uniformity and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, meeting the latest compliance standards for industrial distribution and use.