S-90631A114 M6 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with the nylon insert locking mechanism that maintains clamp force under dynamic loads
• Reliable performance in high-temperature environments, with the nylon insert rated for continuous use up to 220°F
• Enhanced corrosion protection through zinc plating, extending service life in industrial settings
• Precise metric coarse threading (M6 x 1mm) ensures quick installation and compatibility with standard metric bolts
• Class 6H thread fit tolerance provides consistent, secure fastening with reduced risk of cross-threading
• External hex drive design allows for easy installation and removal using common wrenches
• Compliance with major environmental regulations including REACH and RoHS 3 for global market acceptance

Professional Applications & Engineering Value

This M6 nylon insert locknut delivers critical vibration resistance in demanding applications where loosening under dynamic loads poses significant safety and performance risks. The zinc-plated steel construction provides durable corrosion protection for machinery, automotive assemblies, and outdoor equipment exposed to harsh environments. With its metric coarse threading and Class 6H thread fit, this fastener ensures precise engagement and reliable performance in high-vibration industrial settings including conveyor systems, motor mounts, and heavy equipment. The nylon insert maintains locking effectiveness across temperature variations up to 220°F, making it suitable for engine compartments and industrial machinery where thermal cycling occurs.

Specification Summary & Compliance

This locknut features M6 x 1mm coarse pitch metric threading with Class 6H thread fit tolerance according to ISO standards. The external hex drive measures 10mm across flats with a 6mm height profile. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental directives, ensuring regulatory compliance for industrial and commercial applications worldwide.