S-91390A187 M16 x 30 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with the cup point design that bites into surfaces, preventing loosening under vibration and heavy loads.
• Exceptional durability and wear resistance thanks to the high-strength alloy steel construction and Rockwell C45 hardness rating.
• Precise and reliable fit ensured by the Class 5g6g thread tolerance, offering consistent performance in demanding applications.
• Easy and secure installation with the 8mm internal hex drive, allowing for high torque application in confined, headless designs.
• Broad industrial compatibility with its M16x2mm coarse right-hand metric thread, conforming to globally recognized DIN 916 and ISO 4029 standards.
• Safe for regulated environments as it is fully compliant with RoHS 3 and REACH regulations, containing no hazardous substances.
• Optimized for robust fastening in a compact 30mm length, providing a strong mechanical lock for shafts, collars, and gears.

Professional Applications & Engineering Value

This high-strength alloy steel set screw is engineered to solve critical fastening challenges in heavy-duty machinery and precision equipment. The headless design with an 8mm hex drive is ideal for applications where space is limited and a flush surface is required. The M16 coarse thread (2mm pitch) and Class 5g6g thread fit ensure rapid assembly and a secure, vibration-resistant connection, preventing component slippage in pulleys, gears, and couplings. The cup point concentrates pressure to create a permanent dimple in the shaft, providing a mechanical lock that outperforms standard fasteners in high-torque and high-stress environments. Manufactured to DIN 916/ISO 4029 specifications, it delivers the reliability needed for industrial automation, automotive assemblies, and construction equipment.

Specification Summary & Compliance

This set screw features an M16x2mm coarse, right-hand metric thread with a precision Class 5g6g thread fit for excellent dimensional accuracy. It is manufactured from alloy steel and heat-treated to a Rockwell C45 hardness. The product strictly adheres to the DIN 916 / ISO 4029 manufacturing standards and is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant.