S-90237A110 M4 DIN 985, ISO 10511 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology, preventing loosening in high-stress environments
• Enhanced corrosion protection with black-coated steel construction for extended service life in harsh conditions
• High-strength performance meeting Class 10 standards for demanding industrial applications
• Reliable temperature tolerance maintaining locking integrity up to 220°F (104°C)
• Standardized compatibility with DIN 985 and ISO 10511 specifications for seamless integration
• Quick installation with external hex drive design and coarse M4 x 0.7mm threading
• Precision threading with Class 6H fit ensuring consistent engagement and secure fastening

Professional Applications & Engineering Value

This M4 nylon insert lock nut delivers critical vibration resistance for machinery, automotive, and electrical assemblies where dynamic loads threaten fastener integrity. The black corrosion-resistant coating on steel provides durable protection against environmental factors, while the nylon insert locking mechanism creates consistent friction that maintains clamp force without damaging mating threads. Engineered to DIN 985 and ISO 10511 standards, this metric hex locknut offers reliable performance in temperature-fluctuating environments up to 220°F, making it ideal for motors, conveyor systems, and industrial equipment requiring secure, reusable fastening solutions.

Specification Summary & Compliance

This M4 x 0.7mm coarse thread locknut features Class 6H thread fit precision and complies with DIN 985 and ISO 10511 manufacturing standards. The component meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe use across regulated industries. With standardized 7mm width and 5mm height dimensions and right-hand thread direction, this locknut provides consistent performance in metric fastener applications.