S-90278A736 M3.5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional strength and durability offering a tensile strength of 70,000 psi and Rockwell B55 hardness for high-stress applications.
• Precise alignment and secure fit ensured by a 6mm shoulder with minimal tolerances, reducing assembly errors and improving component stability.
• Easy installation and removal with a standard hex socket (2.5mm drive) and smooth head, allowing for efficient maintenance and tool compatibility.
• Reliable thread performance due to Class 6g thread fit and M3.5x0.6 coarse thread, providing secure fastening in various materials.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industrial sectors.
• Versatile metric design with right-hand threads for broad compatibility in global machinery and equipment assemblies.

Professional Applications & Engineering Value

This M3.5 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in precision assemblies. Made from 18-8 stainless steel, it resists corrosion and maintains integrity in demanding conditions like automotive, electronics, and machinery. The precise shoulder diameter and length (6mm with tight tolerances) provide accurate positioning for rotating parts, reducing vibration and extending equipment life. Its hex drive and coarse thread facilitate quick installation, while the high tensile strength supports heavy loads, making it a reliable choice for mechanical assembly and automated systems where durability and exact fit are critical.

Specification Summary & Compliance

This shoulder screw adheres to metric standards with a thread size of M3.5x0.6 and Class 6g thread fit for consistent performance. The shoulder features precise tolerances: diameter of 5 mm (-0.025 to 0 mm) and length of 6 mm (0 to 0.05 mm), ensuring exact alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.