grade4.6
standardISO 898-1
tensile400
yield240
Execution standard reference
Alloy Steel Alloy Steel Hexagon Head Screw — Fully Threaded — DIN 933 / ISO 4017 / GB/T 5783
Alloy steel is commonly selected for fasteners that require higher strength after controlled heat treatment. Like plain carbon steel it has no inherent corrosion resistance and relies on a protective finish. Alloying and heat treatment can support higher property classes such as 10.9 or 12.9, but the actual class and test evidence are confirmed per order. Highly loaded joints in machinery, automotive and structural connections that specify 10.9 or 12.9. Magnetic. It is not a substitute for stainless where corrosion resistance is the requirement. The table below is controlled selection guidance, not a claim that every listed grade is supplied. Confirm the exact material, grade and mechanical requirements in the quotation.
Hexagon Head Screw — Fully ThreadedCurrent standardControlled material and grade reference
Dimensional reference
Shows dimensions already stored in the standard library. Missing values are not filled automatically.
| gradeReference grade / class | standardReference standard | tensileReference tensile (MPa) | yieldReference yield (MPa) |
|---|---|---|---|
| 4.6 | ISO 898-1 | 400 | 240 |
| 4.8 | ISO 898-1 | 400 | 320 |
| 5.6 | ISO 898-1 | 500 | 300 |
| 5.8 | ISO 898-1 | 500 | 400 |
| 6.8 | ISO 898-1 | 600 | 480 |
| 8.8 | ISO 898-1 | 800 | 640 |
| 9.8 | ISO 898-1 | 900 | 720 |
| 10.9 | ISO 898-1 | 1000 | 900 |
| 12.9 | ISO 898-1 | 1200 | 1080 |
grade4.8
standardISO 898-1
tensile400
yield320
grade5.6
standardISO 898-1
tensile500
yield300
grade5.8
standardISO 898-1
tensile500
yield400
grade6.8
standardISO 898-1
tensile600
yield480
grade8.8
standardISO 898-1
tensile800
yield640
