S-91900A307 M5 x 30 mm ASTM F879M, ISO 7380 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced Security: Tamper-resistant Torx T25 drive prevents unauthorized removal, ideal for public or high-risk environments.
• Superior Corrosion Resistance: 18-8 Stainless Steel with Passivated finish ensures long-term durability in harsh or outdoor conditions.
• High Mechanical Strength: 80,000 psi tensile strength and Rockwell B96 hardness provide reliable performance under heavy loads and vibration.
• Precise & Reliable Fastening: Class 6g thread fit and coarse 0.8 mm pitch enable quick, secure installation with reduced cross-threading risk.
• Broad Industrial Compliance: Meets ASTM F879M and ISO 7380 standards, ensuring consistent quality and interchangeability in metric assemblies.
• Full-Length Threading: 30 mm fully threaded design offers maximum grip and adjustability across varied material thicknesses.
• Eco-Safe Manufacturing: RoHS 3 and REACH compliant, free from hazardous substances for safe use in regulated industries.

Professional Applications & Engineering Value

These M5 metric screws are engineered to address critical challenges in industrial and security-focused applications. The combination of 18-8 Stainless Steel and a passivated finish delivers exceptional resistance to rust and chemical exposure, making them suitable for outdoor equipment, marine hardware, and food processing machinery. The tamper-resistant Torx drive (T25) provides a vital security layer against vandalism or unauthorized access in public infrastructure, electrical enclosures, and transportation systems. With a coarse thread pitch (0.8 mm) and Class 6g thread fit, these screws ensure rapid, reliable installation—reducing assembly time and preventing thread stripping in soft metals or plastics. Fully compliant with ASTM F879M and ISO 7380, they guarantee dimensional consistency and mechanical performance in demanding engineering environments.

Specification Summary & Compliance

This product adheres to precise dimensional and performance standards: M5 x 0.8 mm coarse thread with Class 6g tolerance for consistent fit. Manufacturing and material specifications meet ASTM F879M and ISO 7380. Environmental and safety compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring no use of restricted hazardous substances. The fully threaded 30 mm length and rounded button head design support standardized industrial applications requiring security, corrosion resistance, and high tensile strength.