S-91280A288 M8 x 90 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex Head Screws
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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
- Superior load-bearing capacity with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in demanding applications
- Enhanced corrosion resistance with black steel construction providing improved durability in industrial environments
- Optimal thread engagement with Class 6g thread fit ensuring precise mating with nuts and threaded components
- Easy installation and removal with external hex drive design allowing standard wrench access and high torque application
- Versatile partial threading providing both threaded and unthreaded sections for flexible fastening solutions
- Coarse 1.25mm pitch threading enabling quick assembly and reduced cross-threading risk in industrial settings
- Comprehensive regulatory compliance meeting ISO 4014, RoHS 3, and REACH standards for global market acceptance
Professional Applications & Engineering Value
This M8 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and ISO 4014 compliance, specifically designed to address common industrial fastening challenges. The partially threaded design with coarse 1.25mm pitch provides optimal stress distribution while allowing for precise adjustment in machinery assembly, structural frameworks, and equipment manufacturing. The external hex drive facilitates high-torque installation without stripping, crucial for maintenance operations in confined spaces. With Rockwell C21 hardness and 110,000 psi tensile strength, this fastener maintains integrity under vibration and dynamic loads, making it ideal for automotive components, industrial machinery, and construction applications where reliability is paramount.
Specification Summary & Compliance
This metric fastener features precise Class 6g thread fit tolerance with M8 x 1.25mm coarse thread spacing and 22mm minimum thread length. Manufactured to ISO 4014 specifications (equivalent to DIN 931) with right-hand threading and 90mm total length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
