S-91287A321 M8 x 130 mm ISO 4014, DIN 931 18-8 Stainless Steel Hex Head Screws
18-8 Stainless 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 corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term outdoor use
- High tensile strength of 100,000 psi ensures reliable performance under significant mechanical loads and vibration
- Coarse M8 x 1.25mm thread provides faster assembly and reduced risk of cross-threading in industrial applications
- Class 6g thread fit guarantees precise, consistent engagement with mating components for secure fastening
- External hex drive design allows for high-torque installation using standard tools, speeding up maintenance and assembly
- Partially threaded shank offers optimal grip length (22mm min) for materials where full threading isn't required
- Compliance with ISO 4014/DIN 931 ensures dimensional accuracy and interchangeability in global engineering projects
Professional Applications & Engineering Value
This M8 hex head screw is engineered to solve critical fastening challenges in demanding sectors such as machinery assembly, structural frameworks, and outdoor equipment. The 18-8 stainless steel material provides excellent resistance to rust and chemical exposure, making it suitable for marine, chemical processing, and food-grade environments. Its coarse metric thread (M8 x 1.25mm) ensures quick, reliable installation even in applications with slight misalignment or debris. The partially threaded design and 130mm length allow for secure clamping over extended unthreaded sections, reducing stress concentration. With an external hex drive, it supports high torque application, minimizing the risk of tool slippage and enhancing worker safety during assembly or disassembly in maintenance-heavy operations.
Specification Summary & Compliance
This fastener adheres to ISO 4014 / DIN 931 dimensional standards, ensuring precise Class 6g thread fit and M8 x 1.25mm coarse thread specifications. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming the absence of hazardous substances and supporting use in regulated industrial and consumer applications globally.
