S-90304A316 M4 x 8 mm ISO 7045 Steel Pan Head Torx Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel finish, ideal for harsh industrial environments
• Enhanced torque transmission and reduced cam-out thanks to the T20 Torx drive design
• High mechanical strength with 60,000 psi tensile strength and Rockwell B71 hardness for reliable performance
• Secure and precise fastening ensured by Class 6g thread fit and fully threaded M4 x 0.7mm coarse thread
• Easy installation and flush mounting with standard pan head profile and rounded head design
• Compliance with international standards including ISO 7045, RoHS 3, and REACH for global industrial use
• Durable and long-lasting construction suitable for repetitive assembly and disassembly cycles

Professional Applications & Engineering Value

These M4 metric screws with Black-Oxide Steel coating provide exceptional corrosion resistance, making them perfect for automotive, machinery, and electronic assemblies exposed to moisture or chemicals. The Torx T20 drive ensures maximum torque transfer without stripping, reducing tool wear and assembly errors. With a fully threaded coarse pitch design and Class 6g tolerance, they offer quick installation and reliable holding power in metal, plastic, and composite materials. The pan head style distributes clamp force evenly, preventing surface damage and ensuring vibration resistance in dynamic applications.

Specification Summary & Compliance

This screw meets ISO 7045 standards for pan head screws, with M4 x 0.7mm coarse thread and Class 6g thread fit for precise dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are adhered to. Manufactured from high-strength steel with a black-oxide finish, it provides consistent performance in industrial settings requiring durability and regulatory conformity.