S-98052A441 M12 x 38 mm Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual torque application with the four-arm head design and 63.5mm width for superior grip without tools
• Corrosion-resistant performance through black-oxide steel construction and zinc-plated cast iron head
• Reliable load-bearing capacity with 70,000 psi tensile strength and Rockwell B84 hardness
• Precise thread engagement ensured by Class 6g metric coarse threads (M12 x 1.75mm)
• Quick installation in deep assemblies with fully threaded 38mm length and extended 6.5mm tip
• Stable anti-rotation performance from integrated 28.5mm diameter collar
• Environmental compliance assurance meeting RoHS 3 and REACH regulations

Professional Applications & Engineering Value

This M12 thumb screw combines black-oxide steel durability with zinc-plated cast iron head protection to solve critical industrial challenges. The four-arm thumb screw design enables rapid manual adjustments in machinery maintenance, electrical enclosures, and production equipment where tool access is limited. With Class 6g thread fit and coarse pitch threading, it maintains secure fastening in high-vibration environments while the extended tip facilitates alignment in blind holes. The 70,000 psi tensile strength ensures reliable performance in heavy-duty assemblies, making it ideal for repeated use in manufacturing, automation, and industrial control systems.

Specification Summary & Compliance

Manufactured to metric standards with M12 x 1.75mm coarse right-hand threads meeting Class 6g tolerance. Features 38mm total length with 6.5mm extended tip and 28.5mm collar diameter. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations, ensuring environmental safety in industrial applications.