S-90807A132 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Durability: Crafted from high-strength alloy steel with a black oxide finish for superior corrosion resistance and long service life in demanding environments.
• Precision Fit & Alignment: Features a Class 3A thread fit and a precisely machined shoulder, ensuring accurate location and secure fastening in assemblies.
• High Tensile Strength: With a tensile strength of 140,000 psi and a hardness of Rockwell C32, this screw reliably handles heavy loads and high-stress applications.
• Secure & Easy Installation: The hex socket drive (3/16") and knurled head provide excellent grip and torque transmission, preventing tool slippage during installation.
• Versatile Coarse Thread Design: The 3/8"-16 UNC coarse thread allows for quick assembly and disassembly, even in materials where fine threads might be prone to stripping.
• Compliance & Reliability: Manufactured to be RoHS 3 and REACH compliant, ensuring safety and environmental responsibility for your industrial projects.

Professional Applications & Engineering Value

This alloy steel shoulder screw is engineered to address critical challenges in mechanical assemblies requiring precise component location and rotational movement. The 3/8" shoulder diameter acts as a built-in spacer or pivot point, eliminating the need for additional bushings or washers and reducing part count. The black oxide finish not only enhances corrosion resistance but also provides a mild lubricity, easing assembly and reducing galling. With its Class 3A thread fit and 140,000 psi tensile strength, it delivers reliable performance in high-vibration environments found in machinery, automotive systems, and heavy-duty industrial equipment. The combination of a hex socket drive and knurled head ensures secure tool engagement, making it an ideal precision shoulder fastener for applications demanding both strength and dimensional accuracy.

Specification Summary & Compliance

This shoulder screw conforms to UNC (Unified Coarse) thread standards with a precise Class 3A fit for superior thread engagement. The shoulder features a diameter of 3/8" with a tolerance of -0.004" to -0.002" and a length of 3/8" with a tolerance of -0.005" to 0.005". It is manufactured from alloy steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent international environmental and safety standards for industrial components.