S-90269A222 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
• Enhanced torque transmission and reduced tool slippage with the 2.5mm hex drive and knurled socket head design for secure fastening.
• Precise component alignment and pivot points enabled by the 5mm shoulder diameter with tight tolerance, ensuring reliable assembly.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B79 hardness, suitable for demanding loads.
• Reliable thread engagement and interchangeability due to the M4 x 0.7mm coarse thread with Class 5g6g fit per metric standards.
• Compliance with environmental and safety regulations, including RoHS 3 and REACH, for use in global markets and sensitive industries.
• Optimized for automated and manual assembly with consistent 13mm shoulder length, facilitating efficient production processes.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical challenges in precision machinery, where misalignment and corrosion can lead to equipment failure. The 316 stainless steel material offers exceptional resistance to chemicals and moisture, making it ideal for industrial applications in food processing, medical devices, and marine equipment. The socket head with hex drive and knurled texture ensures maximum torque application without stripping, while the precisely machined shoulder diameter acts as a reliable locating surface for gears, bearings, and linkages. By combining a Class 5g6g thread fit with a coarse M4 x 0.7mm thread, it provides quick assembly and high vibration resistance, reducing maintenance needs and downtime in automated systems.

Specification Summary & Compliance

This precision shoulder screw features a metric M4 x 0.7mm coarse thread with a Class 5g6g thread fit for standard interchangeability. The shoulder diameter is manufactured to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length is held to 0 to 0.25 mm tolerance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for various industrial and export requirements.