S-97345A266 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments including marine and chemical processing.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and reduces risk of fastener failure under stress.
• Precision Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
• Knurled socket head with 5/64" hex drive offers enhanced grip and easy installation, minimizing tool slippage and damage.
• Coarse UNC threading allows for quicker assembly and disassembly, improving maintenance efficiency in industrial settings.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global manufacturing standards.
• Rockwell B79 hardness delivers excellent wear resistance, extending service life in high-cycle operations.

Professional Applications & Engineering Value

This 3-48 UNC Class 3A shoulder screw is engineered to address common industrial challenges such as alignment precision and corrosion-induced failures. The 316 stainless steel material provides exceptional resistance to chlorides and acidic conditions, making it suitable for marine equipment, food processing machinery, and chemical handling systems. The shoulder design with precise diameter tolerances ensures accurate component positioning, reducing wear on moving parts. Combined with a coarse thread spacing and socket head, it enables rapid installation in automated assembly lines, while the high tensile and shear strength supports heavy-duty applications like robotics and aerospace fixtures, ensuring long-term reliability and reduced downtime.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision. Dimensions include a thread diameter of 0.099", shoulder diameter of 1/8" with tolerance of -0.004" to -0.002", and thread length of 5/32". It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured to deliver consistent performance with a tensile strength of 70,000 psi and shear strength of 35,000 psi, it is ideal for applications requiring strict adherence to industrial and environmental regulations.