S-97478A142 M20 x 100 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 due to hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments.
- High tensile strength of 150,000 psi (Class 10.9) ensures reliable performance under heavy loads and vibrations.
- Superior hardness (Rockwell C32) provides excellent wear resistance and durability over long-term use.
- Coarse 2.5mm thread pitch allows for faster installation and better grip in various materials.
- Partially threaded design offers optimal clamping force with a 67mm grip length for secure joint connections.
- Compliance with DIN 6914/ISO 7412 standards guarantees dimensional accuracy and interchangeability in metric applications.
- External hex drive head enables easy tightening with standard tools, reducing assembly time and effort.
Professional Applications & Engineering Value
Engineered for demanding heavy-duty applications, these M20 hex head screws are crafted from hot-dipped galvanized steel to combat corrosion in construction, machinery, and structural frameworks. The Class 10.9 strength rating and coarse metric thread ensure robust fastening in high-stress environments, minimizing the risk of loosening under dynamic loads. With a partially threaded shank, they provide precise clamping without compromising tensile integrity, making them ideal for bolted connections requiring consistent preload. Adherence to DIN 6914/ISO 7412 standards ensures reliable performance in industrial assemblies, while the external hex drive simplifies maintenance and disassembly, reducing downtime in critical operations.
Specification Summary & Compliance
This fastener features a metric M20x2.5 coarse thread with Class 6g thread fit for precise tolerance, a length of 100mm, and a grip length of 67mm. It meets DIN 6914/ISO 7412 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in global markets.
