S-90269A498 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel and black oxide finish, ideal for harsh environments and extended service life.
• Precise component alignment and smooth rotation ensured by the accurately machined shoulder with controlled diameter and length tolerances.
• High mechanical strength and durability with a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under load.
• Secure and reliable fastening provided by the Class 5g6g thread fit, ensuring consistent engagement and vibration resistance.
• Easy installation and removal with a 2.5 mm hex socket drive and knurled head for improved grip and torque application.
• Compliance with strict environmental regulations, being RoHS 3 and REACH compliant for use in regulated industries.
• Versatile metric sizing (M3 x 0.5mm coarse pitch) for broad compatibility in international machinery and equipment designs.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion-induced failure, and assembly inefficiency. The 316 stainless steel construction, combined with a black oxide finish, provides exceptional resistance to chemicals and moisture, making it suitable for demanding sectors like marine equipment, food processing machinery, and chemical handling systems. The precision shoulder diameter and length ensure accurate positioning of moving parts, reducing wear and maintenance needs. With a hex socket drive and knurled head, it allows for quick, tool-friendly installation in confined spaces, enhancing productivity in automated assembly lines and precision instruments. Its high tensile and shear strength ensures reliable performance in dynamic applications, from robotics to conveyor systems, where durability and precision are critical.

Specification Summary & Compliance

This shoulder screw adheres to metric thread standards with an M3 x 0.5mm coarse pitch and Class 5g6g thread fit for precise dimensional accuracy. The shoulder features a diameter of 5 mm (tolerance: -0.072 to -0.01 mm) and length of 7 mm (tolerance: 0 to 0.25 mm), ensuring consistent performance. Manufactured from 316 stainless steel with a Rockwell B79 hardness, it meets industry specifications for strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe usage in global markets.