S-90263A233 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction and passivated finish.
• Exceptional mechanical strength with a 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under heavy loads.
• Precise alignment and location ensured by the 2mm shoulder with tight diameter and length tolerances for stable assembly.
• High-accuracy threading with a Class 6g fit and M4x0.7 coarse pitch for easy, secure fastening and vibration resistance.
• Secure and flush installation enabled by the hex socket head and smooth profile, allowing for high torque application in confined spaces.
• Full regulatory compliance with RoHS 3 and REACH standards, making it safe for use in sensitive and international industrial applications.
• Optimized for demanding applications with a robust combination of material, precision shoulder, and thread design for long-term durability.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and wear issues in industrial machinery, automation systems, and precision instruments. The 316 stainless steel material provides excellent corrosion resistance, making it ideal for harsh environments like marine, chemical processing, and food-grade equipment. The 2mm precise shoulder with controlled tolerances acts as a pivot, bearing surface, or locator, preventing component misalignment and reducing wear on mating parts. Combined with the M4x0.7 coarse pitch metric thread and Class 6g fit, it ensures secure fastening and resistance to loosening under vibration. The hex socket drive allows for high torque application in tight spaces, providing a reliable and durable fastening solution for heavy-duty assemblies.

Specification Summary & Compliance

This M4 shoulder screw features a Class 6g thread fit per metric standards with a 0.7mm coarse pitch and 5mm thread length. The shoulder has a precise diameter of 5mm (tolerance: -0.025 to 0 mm) and length of 2mm (tolerance: 0 to 0.05 mm) for accurate positioning. It is manufactured from 316 stainless steel with a passivated finish and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances and suitable for regulated industries.