S-90582A111 M4 DIN 986 Cap Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance with a nylon insert that maintains locking force under dynamic loads, preventing loosening in high-stress applications.
• Reliable performance in elevated temperatures, with the nylon insert rated for continuous use up to 245°F, ensuring stability in industrial environments.
• Enhanced corrosion protection through zinc plating, extending service life and reducing maintenance in harsh or outdoor settings.
• Precise metric coarse threading (M4 x 0.7 mm) with Class 6H fit for easy installation and secure fastening without cross-threading risks.
• Standard external hex drive design allows for quick, tool-friendly installation using common wrenches, improving assembly efficiency.
• Compliance with DIN 986 and Class 6 standards guarantees dimensional accuracy, load capacity, and interchangeability for professional use.
• Environmentally safe and regulated material use, meeting REACH and RoHS 3 directives for responsible sourcing and workplace safety.

Professional Applications & Engineering Value

This M4 nylon insert lock cap nut is engineered to address common industrial challenges like vibration-induced fastener failure and thermal degradation. The zinc-plated steel construction provides robust strength and corrosion resistance, ideal for machinery, automotive assemblies, and electrical enclosures exposed to moisture or chemicals. The nylon insert creates consistent friction on the metric coarse thread, ensuring a secure lock without damaging mating components. By adhering to DIN 986 specifications and Class 6H thread fit, it delivers reliable performance in repetitive disassembly scenarios, reducing downtime and maintenance costs. Its external hex drive and compact profile (7 mm width, 9.6 mm height) facilitate access in confined spaces, making it a versatile choice for OEMs and maintenance teams seeking durable, vibration-resistant fastening solutions.

Specification Summary & Compliance

This cap nut features an M4 x 0.7 mm coarse thread with Class 6H thread fit for precise dimensional tolerance, manufactured to DIN 986 standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence. The fastener meets Class 6 strength requirements, with a nylon insert rated for temperatures up to 245°F, supporting consistent performance in regulated industrial applications.