S-91835A126 M4 Press-Fit Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the nylon insert locking mechanism, ensuring reliable performance in high-motion applications
• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Quick and secure installation with press-fit design, eliminating the need for secondary locking elements
• High-temperature durability with nylon insert rated up to 250°F, maintaining locking performance in demanding conditions
• Precision thread fit with Class 6G coarse metric threads, providing consistent engagement and reduced cross-threading risk
• Optimized panel mounting designed for 1.5mm minimum thickness panels with 7.5mm drill preparation
• Environmental compliance assurance with RoHS 3 certification, meeting international regulatory standards

Professional Applications & Engineering Value

This M4 press-fit locknut delivers critical vibration-resistant fastening for industrial equipment, electronic enclosures, and automotive assemblies where loosening under dynamic loads is a major concern. The 18-8 stainless steel body provides excellent corrosion resistance while the nylon insert locking mechanism creates consistent friction against mating threads, eliminating the need for lock washers or thread-locking compounds. The press-fit installation enables rapid assembly in sheet metal panels up to 1.5mm thickness, with the 8.5mm flange diameter distributing load effectively to prevent panel deformation. This combination of materials and design addresses common failure points in vibration-prone applications while streamlining manufacturing processes.

Specification Summary & Compliance

This metric press-fit locknut features M4 x 0.7mm coarse threads with Class 6G thread fit per ISO standards, ensuring precise thread engagement. The round head design with 4mm height and 8.5mm flange diameter provides optimal installation characteristics. Manufactured to PEM® specifications for panel thickness of 1.5mm minimum with 7.5mm drill preparation. The product is RoHS 3 (2015/863/EU) compliant and meets industry standards for press-fit fastener performance and environmental requirements.