S-90278A335 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Precise component alignment ensured by the 6mm shoulder diameter with tight tolerance (-0.025 to 0mm) and 12mm shoulder length.
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under load.
• Easy and secure installation with a 3mm hex socket drive, preventing cam-out and allowing for high torque application.
• Accurate and reliable threading with Class 6g fit and M5x0.8mm coarse pitch for quick assembly and strong holding power.
• Smooth, low-profile head with 10mm diameter for a flush finish and reduced snagging in compact assemblies.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive, and electronic assemblies exposed to moisture or chemicals. The precise shoulder fit with minimal tolerance ensures accurate positioning of moving parts like gears, pulleys, and linkages, reducing wear and preventing misalignment. The hex socket head allows for efficient tightening in confined spaces, while the Class 6g thread with coarse pitch ensures quick, secure fastening. Its high tensile strength and hardness support demanding operational loads, enhancing the longevity and reliability of your equipment.

Specification Summary & Compliance

This precision shoulder screw features a metric M5x0.8mm thread with Class 6g tolerance for consistent fit. The shoulder diameter is 6mm with a tolerance of -0.025 to 0mm, and shoulder length is 12mm with a tolerance of 0 to 0.05mm, ensuring precise alignment. Manufactured from 18-8 stainless steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, supporting environmentally conscious and safe industrial use.