S-92558A612 M3.5 x 8 mm Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual operation with a precision knurled round head for superior grip, even with gloves or oily hands
• Exceptional corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh or wash-down environments
• High mechanical strength and durability with a Rockwell B83 hardness and 80,000 psi tensile strength for reliable, long-term performance
• Precise and reliable fastening ensured by a Class 6g thread fit and coarse M3.5 x 0.6 mm thread for quick, secure engagement
• Streamlined assembly process with a fully threaded, right-hand design for rapid installation and removal without tools
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for use in regulated markets
• Versatile 8mm length with a raised profile for optimal clearance and a secure hold in a wide range of panel and fixture applications

Professional Applications & Engineering Value

This M3.5 thumb screw is engineered to solve common industrial assembly challenges where tool-less access and frequent adjustments are required. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it a durable choice for industrial thumb screws in electronics enclosures, machinery panels, and automotive components exposed to moisture. The fully threaded design and Class 6g thread fit ensure consistent engagement and holding power, reducing the risk of cross-threading and component failure. The knurled head offers a non-slip surface, enhancing operator safety and efficiency in high-vibration environments. This combination of a corrosion-resistant thumb screw with a right-hand thread delivers reliable, maintenance-free performance for critical access points and serviceable assemblies.

Specification Summary & Compliance

This metric thumb screw features an M3.5 thread size with a 0.6 mm coarse pitch and a Class 6g thread fit, ensuring high dimensional accuracy and interchangeability. It is manufactured from 18-8 Stainless Steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for industrial use.