S-91390A258 M2.5 x 8 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 materials for secure, vibration-resistant fastening
- Exceptional durability from alloy steel construction with Rockwell C45 hardness for long service life in demanding applications
- Reliable installation through hex drive design that prevents cam-out and ensures proper torque application
- Precise thread engagement with Class 5g6g thread fit providing consistent performance and reduced assembly issues
- Industry-standard compatibility meeting DIN 916/ISO 4029 specifications for seamless integration into existing systems
- Environmental compliance with RoHS 3 and REACH regulations for safe use across global markets
- Optimized for coarse threading with 0.45mm pitch enabling faster installation and reduced cross-threading risks
Professional Applications & Engineering Value
This M2.5 set screw delivers exceptional engineering value through its alloy steel composition and precision metric thread design. The Rockwell C45 hardness ensures resistance to deformation under load, while the cup point configuration provides superior grip on shaft components, preventing rotational slippage in machinery assemblies. The hex drive design allows for high-torque installation in confined spaces where headless fasteners are required. Ideal for precision equipment, automotive subsystems, and industrial machinery, this set screw solves critical alignment and retention challenges in right-hand thread applications where vibration resistance and positional accuracy are paramount. The coarse thread spacing facilitates quicker assembly while maintaining the structural integrity demanded by DIN 916 and ISO 4029 standards.
Specification Summary & Compliance
This metric set screw features M2.5 x 0.45mm coarse thread with Class 5g6g thread fit ensuring precise dimensional accuracy per ISO standards. Manufacturing complies with DIN 916 and ISO 4029 specifications for headless set screws with hex socket drive. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring restricted substance compliance.
