S-97478A144 M20 x 120 mm DIN 6914, ISO 7412 Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications
Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance with hot-dipped galvanized steel coating, ideal for harsh industrial environments.
- High tensile strength of 150,000 psi and Class 10.9 grade ensures reliable performance under heavy loads.
- Optimized load distribution from the partially threaded design and 87mm grip length for secure, vibration-resistant connections.
- Easy installation and removal with external hex drive and coarse M20x2.5 thread, reducing assembly time.
- Precise thread fit (Class 6g) guarantees consistent engagement and reduces the risk of cross-threading.
- Compliance with DIN 6914/ISO 7412 standards ensures interchangeability and reliability in structural applications.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe, sustainable use.
Professional Applications & Engineering Value
Engineered for demanding structural steel connections and heavy machinery assembly, this M20 hex head screw addresses critical challenges like vibration loosening and corrosion-induced failure. The hot-dipped galvanized steel provides a robust barrier against moisture and chemicals, extending service life in outdoor or corrosive settings. Its partially threaded configuration and 87mm grip length concentrate clamping force where needed, preventing joint slippage in dynamic loads. With a coarse metric thread and external hex drive, it enables quick fastening in tight spaces, reducing labor costs and enhancing project efficiency for construction, automotive, and industrial equipment sectors.
Specification Summary & Compliance
This hex head screw features an M20x2.5 coarse thread with Class 6g thread fit for precise dimensional accuracy. It meets DIN 6914 and ISO 7412 specifications for structural bolting, ensuring consistent performance in high-strength applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards without hazardous substances.
