S-91390A147 M8 x 25 mm DIN 916, ISO 4029 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior holding power with cup point design that bites into mating surfaces for maximum resistance to loosening under vibration
- Exceptional durability from alloy steel construction with Rockwell C45 hardness for long service life in demanding applications
- Precise thread engagement with Class 5g6g thread fit ensuring reliable fastening and consistent performance
- Easy installation and removal with 4mm hex drive that provides excellent torque transmission and tool accessibility
- Space-saving headless design ideal for applications where protruding fastener heads are not feasible
- Reliable coarse thread performance with 1.25mm pitch that resists cross-threading and enables quick assembly
- Full regulatory compliance meeting DIN 916/ISO 4029 standards plus RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
This M8 set screw delivers exceptional engineering value in industrial applications where reliable, headless fastening is critical. The alloy steel construction combined with Rockwell C45 hardness provides superior resistance to wear and deformation, making it ideal for machinery, automotive components, and precision equipment that experience constant stress and vibration. The cup point design creates a permanent indentation in mating surfaces, effectively preventing rotational movement and maintaining precise alignment. With its 4mm hex drive and coarse thread pitch, this metric set screw offers quick installation and removal while the Class 5g6g thread fit ensures consistent engagement without binding. These features combine to solve common industrial challenges of component slippage, misalignment, and fastener failure in compact assemblies.
Specification Summary & Compliance
This set screw features precise M8 x 1.25mm coarse threads with Class 5g6g tolerance for optimal fit and performance. Manufactured to DIN 916/ISO 4029 specifications, the fastener ensures dimensional accuracy and interchangeability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious manufacturing operations and international market requirements.
