S-94450A547 M4 DIN 439B Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Corrosion-resistant 18-8 stainless steel ensures long-term durability and reliability in harsh or humid environments.
- Thin profile design (2.2mm height) saves space and weight, ideal for compact assemblies where standard nuts are too bulky.
- Left-hand thread direction provides secure fastening in applications where right-hand rotation could cause loosening, such as rotating machinery.
- Class 6H thread fit guarantees precise, vibration-resistant engagement with mating bolts, reducing the risk of thread stripping.
- DIN 439B compliance assures consistent quality, dimensional accuracy, and interchangeability in metric fastener systems.
- RoHS 3 and REACH compliance meets stringent environmental regulations, making it safe for use in regulated industries.
- External hex drive allows for easy installation and removal with standard wrenches, improving assembly efficiency.
Professional Applications & Engineering Value
This M4 left-hand thread hex nut is engineered to address specific industrial challenges where reverse-thread fastening is critical. Its 18-8 stainless steel construction offers excellent corrosion resistance, preventing failure in moist or chemically aggressive settings like marine equipment, food processing machinery, and outdoor structures. The thin profile and metric coarse thread (M4 x 0.7mm) enable reliable performance in tight spaces, such as electronic enclosures or automotive components, where vibration resistance and space savings are paramount. By conforming to DIN 439B standards, it ensures precise fit and durability, reducing maintenance needs and enhancing the longevity of assembled products.
Specification Summary & Compliance
This nut features a Class 6H thread fit per ISO metric standards, ensuring tight tolerances for secure fastening. It complies with DIN 439B for dimensional accuracy, including a 7mm width and 2.2mm height. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of hazardous substances and suitable for global industrial use.
