S-90263A119 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and passivated finish for long-lasting performance in harsh industrial environments
• Precise component alignment thanks to the 3mm shoulder with tight length tolerance (±0.05mm) ensuring accurate assembly and reduced wear
• High mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable load-bearing in demanding applications
• Secure and efficient installation using the standard hex socket drive (2mm) for easy torque application and reduced cam-out risk
• Consistent thread engagement with Class 6g fit M3 x 0.5mm coarse threads providing reliable fastening and vibration resistance
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries and global markets
• Optimized for metric assemblies with full metric dimensions ensuring compatibility and interchangeability in precision machinery

Professional Applications & Engineering Value

This M3 shoulder screw delivers exceptional engineering value in applications requiring precise axial positioning and rotational control. The 316 stainless steel construction with passivated finish provides outstanding resistance to chemicals, moisture, and industrial atmospheres, solving corrosion-related failure points in machinery, medical devices, and marine equipment. The precision-ground 3mm shoulder with tight diameter tolerance acts as a reliable locating dowel, eliminating component misalignment in assemblies while the M3 x 0.5mm coarse threads ensure rapid installation and secure fastening. With 70,000 psi tensile strength, this socket head shoulder screw maintains structural integrity under dynamic loads, making it ideal for pivots, gears, and precision instruments where dimensional stability is critical.

Specification Summary & Compliance

This precision metric shoulder screw features M3 x 0.5mm coarse threads with Class 6g thread fit per ISO standards. The shoulder diameter maintains -0.025 to 0 mm tolerance with shoulder length tolerance of 0 to 0.05 mm for precise assembly. Manufactured from 316 stainless steel with Rockwell B79 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental and safety standards.