S-91783A638 3/8"-16 x 3" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish for extended service life in harsh environments.
• High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration.
• Secure and precise fit with Class 2A thread tolerance for consistent, reliable fastening.
• Optimized for manual assembly featuring a slotted drive and rounded head for easy installation and removal.
• Durable construction with Rockwell B100 hardness to resist wear and deformation.
• Versatile partial threading allows for effective clamping across a wide range of material thicknesses.
• Full regulatory compliance with ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety.

Professional Applications & Engineering Value

This 3/8"-16 UNC Rounded Head Slotted Screw is engineered to provide a robust and corrosion-resistant fastening solution for demanding industrial applications. The combination of 18-8 Stainless Steel and a passivated finish effectively combats rust and chemical degradation, making it ideal for machinery, marine equipment, and food processing facilities. Its coarse thread spacing (UNC) and partial threading enable quick assembly and strong holding power in softer materials or when a non-threaded shank is required for clearance. The slotted drive and rounded head profile facilitate straightforward manual tightening, offering excellent value for maintenance, repair, and OEM operations where tool accessibility is variable and long-term reliability is critical.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC thread with a Class 2A fit for standard tolerance and a coarse thread spacing. It is manufactured in compliance with the ASME B18.6.3 standard and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.