S-90576A726 M48 ISO 10511, DIN 985 Locknuts

Locknuts

1143FA00023 Locknuts
1143FA00023 Locknuts

Image may differ from product. See technical specification for details.

Part No.
Part No. 1143FA00023
Equivalent to mcmaster :
90576A726

Basic Information

System of Measurement Metric
Nut Type Locknut, Hex
Specifications Met ISO 10511, DIN 985

Dimension Parameters

Width 75 mm
Height 48 mm

Thread Parameters

Thread Type Metric
Thread Size M48
Thread Direction Right Hand
Thread Pitch 3 mm
Thread Spacing Fine
Thread Fit Class 6H

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Material & Strength Parameters

Material Zinc-Plated Steel
Strength Class Class 8

Temperature & Environment Parameters

Insert Maximum Temperature 220°F

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
Locking Type Nylon Insert
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior vibration resistance through nylon insert locking technology, preventing loosening in high-stress environments
  • Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding conditions
  • Reliable high-temperature performance maintaining locking integrity up to 220°F (104°C)
  • Precise metric threading with Class 6H fit and fine 3mm pitch for secure, accurate fastening
  • Heavy-duty strength rating meeting Class 8 standards for industrial applications
  • Standard external hex drive for easy installation with common tools and 75mm width for optimal torque application
  • International compliance with ISO 10511 and DIN 985 standards for global project compatibility

Professional Applications & Engineering Value

This M48x3mm nylon insert lock nut delivers exceptional engineering value in industrial applications where vibration-induced loosening poses significant reliability challenges. The zinc-plated steel construction provides durable corrosion resistance while the nylon insert locking mechanism creates consistent friction against mating threads, maintaining clamp force without damaging threads. The fine metric threading with Class 6H fit ensures precise engagement in heavy machinery, structural steel connections, and equipment subjected to dynamic loads. With its 220°F temperature rating and Class 8 strength classification, this external hex locknut solves critical fastening challenges in manufacturing, construction, and transportation sectors where safety and reliability are paramount.

Specification Summary & Compliance

This metric lock nut features M48x3mm fine threading with Class 6H thread fit tolerance and right-hand thread direction. Manufactured to ISO 10511 and DIN 985 specifications with Class 8 strength rating. The component measures 75mm width and 48mm height with external hex drive style. Compliant with RoHS 3 (2015/863/EU) environmental standards for industrial use.

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