S-91385A428 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 vibration resistance with nylon patch thread locker that maintains secure fastening in high-stress environments
- Exceptional corrosion protection through black-oxide coating on alloy steel, extending service life in harsh conditions
- High-strength performance with Rockwell C45 hardness rating ensuring reliable load-bearing capacity
- Wide temperature tolerance from -50° to 250°F (-45° to 121°C) for stable operation across diverse industrial settings
- Precise thread engagement with Class 5g6g thread fit providing consistent, reliable mating with components
- Easy installation and removal through 4mm hex drive design, enabling efficient maintenance operations
- Secure cup tip design that digs into mating surfaces to prevent slippage and rotational movement
Professional Applications & Engineering Value
This M8 set screw with nylon patch thread locker addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and precision equipment. The black-oxide alloy steel construction provides enhanced corrosion resistance while maintaining the Rockwell C45 hardness necessary for high-stress applications. The coarse thread design with 1.25mm pitch ensures rapid installation and superior holding power in soft materials and adjustment applications. The headless design with cup tip creates positive seating contact points, preventing component displacement in precision alignment systems. Engineered to DIN 916/ISO 4029 specifications, this metric set screw delivers reliable performance in manufacturing, automation, and mechanical systems where vibration resistance and positional accuracy are paramount.
Specification Summary & Compliance
This set screw features Class 5g6g thread fit tolerance according to ISO metric standards, ensuring precise dimensional accuracy. Manufactured to DIN 916/ISO 4029 specifications with M8 x 1.25mm coarse thread profile and 25mm length. 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 strict chemical substance control.
