S-91390A616 M8 x 120 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup point design that bites into mating surfaces for permanent, vibration-resistant fastening
• Exceptional durability from Rockwell C45 hardened alloy steel that withstands heavy loads and repeated adjustments
• Precise thread engagement with Class 5g6g tolerance ensuring reliable performance in demanding industrial applications
• Easy installation and removal using standard 4mm hex tools without requiring additional clearance for screw heads
• Optimized for coarse thread applications with M8 x 1.25mm pitch providing faster assembly and reduced cross-threading risk
• Global compliance assurance meeting both DIN 916 and ISO 4029 standards for international project specifications
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance for sustainable sourcing

Professional Applications & Engineering Value

This M8 set screw delivers critical engineering solutions where space constraints and vibration resistance are paramount. The headless design with 4mm hex drive enables flush mounting in precision machinery, automotive components, and manufacturing equipment where protruding fastener heads would interfere with operation. Manufactured from alloy steel with Rockwell C45 hardness, it maintains dimensional stability under extreme mechanical stress while the cup point creates permanent seating by embedding into shaft surfaces. The coarse thread pitch (1.25mm) ensures rapid installation in production environments and provides superior performance in softer materials where fine threads might strip. Compliant with DIN 916/ISO 4029 specifications, this metric set screw offers engineers reliable interchangeability and quality assurance for global manufacturing requirements.

Specification Summary & Compliance

This precision fastener features Class 5g6g thread fit tolerance per ISO metric standards, ensuring consistent engagement and load distribution. The 120mm length with right-hand thread direction provides versatile application coverage while maintaining dimensional accuracy. Manufacturing compliance includes DIN 916 and ISO 4029 specifications for dimensional and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming responsible material sourcing and manufacturing processes for international industrial applications.