S-90263A244 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Precise component alignment enabled by the 20mm shoulder with tight diameter tolerance for reduced vibration and wear
• High-strength performance with 70,000 psi tensile strength and Rockwell B79 hardness for demanding applications
• Reliable thread engagement through Class 6g thread fit and coarse 0.7mm pitch for quick assembly and secure fastening
• Easy installation and removal with 2.5mm hex socket drive preventing cam-out and enabling high torque application
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial supply chain requirements
• Dimensional stability with precise shoulder length tolerance ensuring consistent performance in precision assemblies

Professional Applications & Engineering Value

This M4 shoulder screw delivers exceptional engineering value in applications requiring precise component positioning and rotational control. The 316 stainless steel material combined with passivated finish provides outstanding resistance to chemicals, saltwater, and industrial atmospheres, solving corrosion-related failure points in machinery, marine equipment, and chemical processing systems. The 20mm shoulder length with precise diameter control serves as an accurate locating dowel for gears, pulleys, and rotating assemblies, eliminating the need for additional alignment components. The socket head design with 2.5mm hex drive allows for compact installation in space-constrained applications while providing reliable torque transmission. These metric shoulder screws are engineered to maintain dimensional integrity under load, making them ideal for precision instruments, automation equipment, and manufacturing jigs where repeated accuracy is critical.

Specification Summary & Compliance

This precision shoulder screw features M4 x 0.7mm coarse metric thread with Class 6g thread fit tolerance, ensuring compatibility with standard metric components. The shoulder maintains a precise 5mm diameter with -0.025 to 0 mm tolerance and 20mm length with 0 to 0.05 mm tolerance for accurate positioning. Manufactured from 316 stainless steel with passivated finish, the fastener delivers consistent performance with 70,000 psi tensile strength and Rockwell B79 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial applications worldwide.