S-91390A230 M5 x 30 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Rockwell C45 hardness ensuring high resistance to wear and deformation in demanding applications.
• Secure and precise installation using a standard 2.5 mm hex key, providing reliable torque transfer without the risk of cam-out.
• Optimized for high-vibration environments due to the coarse thread pitch (0.8 mm), which resists loosening under dynamic loads.
• Superior component fixation with the cup point tip, which bites into the contact surface for a non-slip, permanent assembly.
• Guaranteed dimensional interchangeability and fit, manufactured to Class 5g6g thread tolerance for consistent performance.
• Compliance with major international standards including DIN 916 and ISO 4029, ensuring quality and reliability for global projects.
• Safe for use in regulated industries, being fully RoHS 3 and REACH compliant and free from hazardous substances.

Professional Applications & Engineering Value

This alloy steel set screw is engineered to solve critical challenges in industrial assembly and precision machinery. Its headless design and hex drive allow for a flush installation in confined spaces, preventing interference with moving parts. The M5x0.8 coarse thread ensures rapid assembly and provides excellent resistance to vibrational loosening, a common failure point in motors, gears, and pulleys. The cup point tip concentrates pressure to create a strong bite on shafts and collars, securing components without slippage. Manufactured from high-grade alloy steel and heat-treated to Rockwell C45 hardness, it delivers the durability and fatigue resistance required for heavy-duty cycles, making it an indispensable metric fastener for automotive, aerospace, and manufacturing applications.

Specification Summary & Compliance

This M5 set screw features a 30 mm length and a 0.8 mm pitch coarse right-hand thread conforming to Class 5g6g tolerance for precise fit. It is manufactured according to the DIN 916 / ISO 4029 specifications, ensuring dimensional accuracy and performance reliability. The product is verified to be compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for industrial use.