S-90269A118 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh or chemical-exposed environments.
• Enhanced grip and anti-slip performance from the knurled head, allowing for secure manual adjustments without tools.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B79 hardness for reliable, long-term use.
• Precision alignment and spacing ensured by the 6mm diameter shoulder with controlled tolerances for consistent assembly fit.
• Easy installation with standard tools using the 2mm hex socket drive, reducing assembly time and tool wear.
• Accurate and secure threading with Class 5g6g thread fit and coarse pitch for quick engagement and vibration resistance.
• Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring suitability for regulated industries.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and mounting challenges in precision assemblies. The 316 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for medical devices, food processing equipment, and marine applications. The integrated shoulder with a diameter of 6mm provides a precise pivot or bearing surface, eliminating the need for separate spacers and reducing component count. The knurled hex socket head combines tool-driven torque with manual grip, ideal for adjustments in confined spaces. With a coarse thread pitch and Class 5g6g thread fit, it ensures rapid installation and maintains clamp load under dynamic stresses, enhancing reliability in automated machinery and electronic enclosures.

Specification Summary & Compliance

This precision shoulder screw adheres to Metric standards with an M3x0.5mm coarse thread and Class 5g6g tolerance for consistent fit. The shoulder diameter is manufactured to a tolerance of -0.072 to -0.01 mm, and shoulder length to 0 to 0.25 mm, ensuring high dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of restricted hazardous substances for safe use in global industrial markets.