S-90585A961 3/4"-10 x 1 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high-stress conditions.
• Precision thread engagement with Class 3A fit and UNC coarse thread spacing ensures secure, vibration-resistant fastening in industrial assemblies.
• Optimized for flush mounting featuring a standard flat head with 82° countersink angle for a smooth, unobtrusive surface finish.
• Efficient installation and removal with a 1/2" hex drive, providing high torque capability and reducing assembly time.
• Full-length threading along the 1-1/2" length offers maximum grip and adjustability in a wide range of material thicknesses.
• Regulatory compliance and quality assurance meeting ASME B18.3 specifications, RoHS 3, and REACH standards for safe, global industrial use.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/4"-10 UNC Flat Head Screws in 316 Stainless Steel address critical challenges like corrosion, high tensile loads, and vibration loosening. The passivated finish enhances surface durability against chemicals and moisture, making them ideal for marine, chemical processing, and outdoor applications. The coarse UNC thread and Class 3A fit provide superior holding power in metals and composites, reducing the risk of thread stripping. With a 1/2" hex drive and fully threaded design, they enable quick, secure installations in structural frameworks, machinery, and heavy-duty equipment, ensuring long-term reliability and minimal maintenance.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit and UNC coarse thread standards, ensuring precise dimensional accuracy per ASME B18.3. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity. Manufactured in the inch system with consistent tolerances, it meets industrial requirements for strength, threading, and head profile specifications.