S-97131A210 M20 DIN 982, ISO 7040 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through nylon insert locking technology, preventing loosening under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh environments
- High-strength performance with Class 8 rating, ensuring reliable fastening in demanding industrial applications
- Wide temperature tolerance up to 220°F (104°C), maintaining locking integrity across various operating conditions
- Precision thread engagement with Class 6H fit and coarse 2.5mm pitch for quick installation and secure holding power
- Standardized compatibility meeting DIN 982 and ISO 7040 specifications for interchangeability and quality assurance
- External hex design providing excellent torque transmission and tool accessibility for efficient assembly
Professional Applications & Engineering Value
This M20 nylon insert lock nut delivers critical vibration-resistant performance for industrial machinery, automotive assemblies, and heavy equipment where constant motion threatens fastener integrity. The zinc-plated steel construction combines corrosion resistance with the durability needed for harsh operating environments, while the nylon insert creates consistent friction that maintains clamping force without damaging mating threads. Engineered to DIN 982 and ISO 7040 standards, this Class 8 locknut provides reliable locking performance in applications subject to thermal cycling and dynamic stresses, eliminating the need for secondary locking devices and reducing maintenance intervals. The coarse metric thread with 2.5mm pitch ensures rapid installation while the external hex drive accommodates standard tools for efficient assembly and disassembly.
Specification Summary & Compliance
This M20x2.5 lock nut features precision Class 6H thread fit with coarse thread spacing, 30mm width, and 22mm height. Manufactured to DIN 982 and ISO 7040 specifications with Class 8 strength rating. Compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring safe use across regulated industries.
