S-90251A313 M5 x 20 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
- Vibration-resistant locking with a permanent nylon patch that maintains secure fastening without loosening under dynamic loads.
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh or humid industrial environments.
- High-strength, durable performance with Rockwell B80 hardness, ensuring long-term reliability and resistance to wear.
- Secure, non-slip installation using a 2.5 mm hex socket drive for precise torque application and easy assembly in tight spaces.
- Wide temperature tolerance from -50° to 250°F, allowing consistent performance in varied operating conditions.
- Accurate, coarse thread engagement with Class 6g fit for quick assembly and reduced cross-threading risks in metric applications.
- Cup point design that bites into surfaces for a firm grip, preventing component slippage in machinery and assemblies.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this M5 hex socket set screw combines 18-8 stainless steel with a nylon patch thread locker to address common vibration-induced failures. The cup point tip ensures deep embedding into shafts or hubs, providing reliable positioning in power transmission systems, motor assemblies, and precision equipment. Its coarse metric thread (M5x0.8mm) and Class 6g tolerance enable swift installation while maintaining alignment, reducing assembly time and rework. With a temperature range of -50° to 250°F, it performs consistently in automotive, aerospace, and manufacturing applications where thermal cycling and corrosion resistance are critical.
Specification Summary & Compliance
This set screw adheres to DIN 916 / ISO 4029 standards, with a Class 6g thread fit ensuring dimensional accuracy for metric coarse threads. It is manufactured from 18-8 stainless steel and features a Rockwell B80 hardness for mechanical durability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets environmental and safety regulations for global industrial use.
