S-90251A161 M4 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
- Vibration-resistant locking with permanent nylon patch thread locker that maintains secure fastening under dynamic loads and temperature fluctuations
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring longevity in harsh industrial environments
- Optimized mechanical strength with Rockwell B80 hardness providing excellent durability and resistance to deformation
- Precise thread engagement through Class 6g thread fit and coarse pitch design for quick installation and reliable holding power
- Flush mounting capability with headless design and cup tip for seamless integration where protruding fasteners are undesirable
- Wide temperature tolerance with thread locker effective from -50° to 250°F for consistent performance across diverse operating conditions
- Standardized compatibility meeting DIN 916/ISO 4029 specifications for guaranteed interchangeability and engineering consistency
Professional Applications & Engineering Value
This M4 set screw with nylon patch thread locker addresses critical vibration-induced loosening challenges in precision assemblies. The 18-8 stainless steel construction provides inherent corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements, while the hex drive design enables high-torque installation in confined spaces. The cup tip concentrates clamping force for superior grip on shafts and axles, preventing component slippage in power transmission systems. Engineers specify this metric set screw for permanent fastening in robotics, automotive subsystems, and industrial machinery where coarse thread design accelerates assembly and Class 6g thread fit ensures precise tolerance matching.
Specification Summary & Compliance
This hex headless set screw features M4 x 0.7mm coarse thread with right-hand thread direction and Class 6g thread fit per ISO metric standards. Manufacturing complies with DIN 916/ISO 4029 specifications for dimensional accuracy and performance. The component is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for industrial use.
