S-90269A439 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments
• Precise thread engagement with Class 5g6g thread fit ensuring reliable fastening in demanding applications
• High mechanical strength with 70,000 PSI tensile strength and Rockwell B79 hardness for long-term durability
• Secure installation with knurled head providing enhanced grip during assembly with hex drive tools
• Accurate shoulder positioning featuring 20mm shoulder length with tight tolerance for precise component alignment
• Compliance with environmental regulations including RoHS 3 and REACH for global industrial applications
• Optimized for metric systems with M2 x 0.4mm coarse thread design for quick assembly in machinery and equipment

Professional Applications & Engineering Value

This M2 shoulder screw delivers exceptional engineering value in precision assembly applications where component alignment and corrosion resistance are critical. The 316 stainless steel construction with black oxide finish provides superior protection against chemical exposure and atmospheric corrosion, making it ideal for medical equipment, marine components, and food processing machinery. The 20mm shoulder length with controlled tolerance ensures precise spacing between assembled parts, while the knurled head and hex drive design prevent tool slippage during installation. The Class 5g6g thread fit guarantees consistent engagement in threaded holes, reducing the risk of cross-threading in automated assembly lines. These features combine to solve common industrial challenges of misalignment, corrosion-induced failure, and installation inefficiency.

Specification Summary & Compliance

This precision shoulder screw features M2 x 0.4mm coarse metric thread with Class 5g6g thread fit tolerance, ensuring dimensional accuracy per ISO standards. The shoulder diameter maintains -0.072 to -0.01 mm tolerance with shoulder length tolerance of 0 to 0.25 mm for precise component positioning. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring restricted substance compliance.