S-90251A318 M8 x 8 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locking that maintains secure fastening in high-stress environments
• Superior corrosion protection from 18-8 stainless steel construction for extended service life in harsh conditions
• Reliable high-temperature performance with thread locker effectiveness maintained from -50° to 250°F
• Precise installation control through 4mm hex drive design that prevents tool slippage and ensures proper torque application
• Optimized thread engagement with Class 6g thread fit providing consistent clamping force and reduced loosening risk
• Minimal profile design with headless construction allowing flush mounting in space-constrained applications
• Enhanced grip performance from cup tip design that digs into mating surfaces for superior anti-rotation security

Professional Applications & Engineering Value

This M8 x 1.25mm nylon patch locking set screw delivers critical vibration resistance in demanding industrial applications where constant motion and thermal cycling compromise traditional fasteners. The 18-8 stainless steel construction provides essential corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements, while the Rockwell B80 hardness ensures durability against wear and deformation. The coarse thread pitch enables quicker installation and better performance in softer materials, and the headless hex drive design allows for flush mounting in precision assemblies. Particularly valuable in automotive components, industrial machinery, and electrical enclosures, this DIN 916 compliant fastener solves the persistent challenge of maintaining clamp load under continuous vibration and thermal stress.

Specification Summary & Compliance

Manufactured to DIN 916 / ISO 4029 standards with Class 6g thread fit precision for consistent performance. The metric coarse thread (M8 x 1.25mm) ensures reliable engagement across industrial applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making this fastener suitable for global industrial markets and environmentally conscious manufacturing requirements.