S-90270A664 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise component alignment thanks to the 20mm shoulder with tight tolerances for accurate positioning in assemblies
• High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness to withstand heavy loads and stress
• Reliable thread engagement with Class 6g coarse metric threads ensuring secure fastening and vibration resistance
• Easy installation and removal using standard socket head drive for efficient maintenance and assembly operations
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Cost-effective durability combining corrosion resistance and high strength to reduce replacement frequency and maintenance costs

Professional Applications & Engineering Value

This precision shoulder screw is engineered to solve critical alignment and durability challenges in industrial applications. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for machinery, automotive components, and electronic enclosures exposed to moisture or chemicals. The 20mm shoulder length with precise tolerances ensures accurate positioning of moving parts, reducing wear and maintaining operational precision in rotating assemblies. With Class 6g metric coarse threads and 70,000 psi tensile strength, it delivers reliable fastening under vibration and load stress. The socket head design allows for compact installation in space-constrained applications while facilitating quick maintenance. This combination of material properties and precision engineering makes it particularly valuable for industrial automation equipment, precision instruments, and manufacturing fixtures where dimensional accuracy and long-term reliability are paramount.

Specification Summary & Compliance

This M4 shoulder screw features metric coarse threads with 0.7mm pitch and Class 6g thread fit for standard industrial applications. The shoulder maintains precise dimensions with 5mm diameter (-0.025 to 0 mm tolerance) and 20mm length (0 to 0.05 mm tolerance) for accurate component alignment. Manufactured from 18-8 stainless steel with Rockwell B55 hardness and 70,000 psi tensile strength, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.