S-91304A155 M8 x 30 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat 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
- Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from blue zinc plating extends service life in harsh environments, minimizing maintenance and replacement costs.
- High-strength Class 10.9 rating provides consistent clamping force and durability for demanding mechanical assemblies.
- Precision Class 6g thread fit ensures smooth installation and secure fastening, reducing assembly time and improving joint integrity.
- 5mm hex drive design allows for easy installation with standard tools, enhancing workflow efficiency in tight spaces.
- Full threading along the 30mm length offers maximum grip and adjustability, suitable for varied material thicknesses.
- Compliance with DIN 7991/ISO 10642 standards guarantees dimensional accuracy and interoperability with metric components.
Professional Applications & Engineering Value
These M8 flat head screws are engineered with blue-dyed zinc-plated alloy steel to address common industrial challenges such as vibration loosening and environmental degradation. The coarse 1.25mm pitch thread and right-hand threading provide quick assembly and high resistance to shear forces, making them ideal for heavy machinery, automotive frames, and structural steelwork. The flat head profile sits flush with surfaces, preventing protrusions in precision equipment. Combined with Rockwell C32 hardness, they deliver long-term reliability in applications requiring high tensile strength and corrosion protection, reducing downtime and lifecycle costs.
Specification Summary & Compliance
This screw features M8 x 1.25mm coarse threads with a Class 6g thread fit for precise tolerance, manufactured to DIN 7991 and ISO 10642 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for global supply chains.
