S-91273A916 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Precise alignment and pivot points enabled by the 3/16" shoulder with tight diameter and length tolerances for reliable assembly fit.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength, ensuring joint integrity under load.
• Secure, non-slip installation provided by the knurled socket head and 3/32" hex drive, resisting cam-out during torque application.
• Fine-thread reliability with the 10-32 UNF thread and Class 2A fit, offering excellent vibration resistance and clamping force.
• Consistent material hardness at Rockwell B55, providing excellent wear resistance and durability for repeated use.
• Global compliance assurance meeting RoHS 3 and REACH standards, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to solve critical alignment and pivot challenges in mechanical assemblies. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions. The 3/16" shoulder length with controlled tolerances acts as a precise locating diameter for gears, linkages, and rotating components, eliminating misalignment and reducing wear. The 10-32 UNF fine thread with Class 2A fit ensures secure fastening in high-vibration environments like machinery, automotive systems, and automation equipment. Combined with a knurled socket head for anti-slip torque application, this industrial fastener delivers reliable performance in precision instruments, conveyor systems, and assembly jigs where dimensional accuracy and durability are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent engagement. The shoulder diameter tolerance is -0.004" to -0.002" and length tolerance is -0.005" to 0.005", ensuring high dimensional precision. Manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55 and tensile strength of 70,000 psi, it meets rigorous mechanical requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.