S-93791A518 10-32 x 3/4" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide passivated finish on 18-8 stainless steel, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable load-bearing capacity and durability in demanding applications
• Precise Class 3A thread fit provides tighter tolerances for secure fastening and reduced risk of loosening under vibration
• Fully threaded design with fine UNF spacing offers maximum grip and uniform stress distribution along the entire length
• Standard 82° countersink angle allows for flush mounting, minimizing protrusion and improving aesthetic finish
• Hex drive compatibility with 1/8" drive size enables easy installation and removal using common tools
• Compliance with ASME B18.3, RoHS, and REACH ensures adherence to industry standards and environmental regulations

Professional Applications & Engineering Value

These 10-32 UNF flat head screws are engineered to address critical challenges in precision assembly and machinery. The 18-8 stainless steel construction, combined with a black-oxide passivated finish, delivers robust protection against corrosion and wear, making them suitable for automotive, aerospace, and electronic enclosures where exposure to moisture or chemicals is common. The Class 3A thread fit and fine threading ensure minimal backlash and vibration resistance, reducing maintenance needs in dynamic systems. With a fully threaded design and 82° countersink angle, they provide seamless integration into tapered holes, enhancing structural integrity and streamlining production workflows. Ideal for OEMs and MRO applications, these screws offer long-term reliability and compliance with global standards.

Specification Summary & Compliance

This product adheres to Class 3A thread fit per UNF standards, ensuring high precision in inch-based systems. Manufacturing follows ASME B18.3 specifications, with dimensions including a 3/4" length, 10-32 thread size, and fine spacing. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of restricted substances. The Rockwell B55 hardness and 70,000 psi tensile strength validate its mechanical reliability for industrial use.