S-90576A163 M33 DIN 985, ISO 10511 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered nylon insert that maintains locking force under dynamic loads
• Exceptional corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• High-temperature performance with nylon insert rated up to 220°F (104°C) for demanding industrial applications
• Heavy-duty reliability with Class 8 strength rating ensuring consistent performance under high stress conditions
• Precision thread engagement with Class 6H thread fit providing secure fastening and easy installation
• Industry-standard compliance meeting DIN 985 and ISO 10511 specifications for guaranteed interchangeability
• Environmental responsibility with RoHS 3 compliance for safe use in regulated industries

Professional Applications & Engineering Value

This M33 nylon insert lock nut delivers critical vibration resistance in heavy machinery, automotive assemblies, and industrial equipment where constant motion threatens fastener integrity. The zinc-plated steel construction provides essential corrosion protection while the nylon insert locking mechanism creates consistent friction against bolt threads, preventing loosening without damaging mating surfaces. With coarse metric threading (3.5mm pitch) and Class 6H thread fit, these lock nuts ensure rapid installation and reliable performance in high-vibration environments. The external hex drive style allows for standard wrench access, making maintenance and assembly efficient in confined spaces. Engineered to withstand temperatures up to 220°F, these DIN 985 and ISO 10511 compliant lock nuts provide lasting security in demanding industrial applications where safety and reliability are paramount.

Specification Summary & Compliance

This M33 x 3.5mm nylon insert lock nut features Class 6H thread fit tolerance ensuring precise engagement with mating bolts. Manufactured to DIN 985 and ISO 10511 standards for dimensional accuracy and performance consistency. The product maintains RoHS 3 (2015/863/EU) compliance for environmental safety and meets Class 8 strength requirements for heavy-duty applications. With standardized 50mm width and 33mm height dimensions, these lock nuts provide reliable interchangeability across industrial fastening systems.