S-91390A638 M20 x 80 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 vibration resistance thanks to the cup tip design that creates deep indentation and prevents loosening under dynamic loads
- Exceptional strength and durability from Rockwell C45 hardened alloy steel, ensuring reliable performance in demanding applications
- Precise coarse thread engagement with Class 5g6g tolerance for quick installation and secure fastening in various materials
- Optimized torque transmission through the 10mm hex drive, allowing for high tightening forces without head protrusion
- International compliance assurance with DIN 916/ISO 4029 standards, guaranteeing dimensional accuracy and interchangeability
- Environmental regulation compliance meeting RoHS 3 and REACH requirements for safe use in regulated industries
- Versatile right-hand threading compatible with standard metric components for broad application across industrial equipment
Professional Applications & Engineering Value
This M20 set screw delivers critical engineering solutions where vibration resistance and permanent positioning are paramount. The cup tip design bites into shaft materials, creating permanent seating that prevents axial movement in pulley systems, gear assemblies, and rotating machinery. Manufactured from alloy steel with Rockwell C45 hardness, it maintains clamping force under extreme stress conditions while the coarse thread pitch ensures rapid installation in production environments. The headless configuration with 10mm hex drive provides flush mounting in space-constrained applications, making it ideal for precision equipment where component clearance is critical.
Specification Summary & Compliance
This metric set screw features M20 x 2.5mm coarse threads with Class 5g6g thread fit tolerance per ISO standards, ensuring precise engagement and reliable performance. The 80mm length with cup tip configuration meets dimensional requirements of DIN 916 and ISO 4029 specifications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming suitability for industrial applications requiring compliant fastening solutions.
