S-94387A221 M3 x 20 mm JIS B 1111 JIS Steel Pan Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding environments
• High tensile strength of 60,000 PSI ensures reliable, vibration-resistant fastening under mechanical stress
• Rockwell B71 hardness provides excellent durability and resistance to wear during installation and use
• Class 6g thread fit with coarse 0.5mm pitch enables quick, secure engagement and reduces cross-threading risks
• JIS B 1111 standard compliance guarantees consistent quality and interchangeability for international projects
• Fully threaded 20mm length offers maximum grip and adjustability across material thicknesses
• RoHS 3 environmental compliance meets strict EU regulations for safe, sustainable manufacturing

Professional Applications & Engineering Value

Engineered for robust performance, these M3 metric screws with zinc-plated steel provide critical corrosion protection in humid or industrial settings. The rounded pan head and JIS drive design ensure flush mounting and secure torque transmission, reducing head stripping. With a coarse 0.5mm thread pitch and Class 6g fit, they deliver rapid assembly in metals, plastics, and composites—ideal for machinery, electrical enclosures, and automotive components where vibration resistance and 60,000 PSI tensile strength prevent joint failure.

Specification Summary & Compliance

This screw adheres to JIS B 1111 manufacturing standards, with M3 x 0.5mm coarse threads meeting Class 6g tolerance. Dimensions include a 20mm length (±0.15mm tolerance) and 5.5mm head diameter. It is fully compliant with RoHS 3 (2015/863/EU) for hazardous substance restrictions, ensuring environmental safety in global supply chains.