Product Description
M12 Grade 8.8 Yellow Zinc Plated Steel Hexagon Head Bolts With Shank – DIN 931
M12 hexagon head bolts manufactured to DIN 931 from Grade 8.8 high tensile steel with a yellow zinc plated finish. These part-threaded bolts feature a plain shank beneath the head and an M12 × 1.75 metric coarse thread.
The hexagon head accepts a 19mm spanner or socket. Available in lengths from 45mm to 150mm for machinery, maintenance and general engineering assemblies requiring a bolt with an unthreaded shank.
Specifications
| Product type | Hexagon head bolt with shank |
|---|---|
| Standard | DIN 931 |
| Thread size | M12 |
| Nominal thread diameter | 12mm |
| Thread pitch | 1.75mm |
| Thread type | Metric coarse — standard pitch |
| Thread coverage | Part threaded, with a plain shank beneath the head |
| Material | High tensile steel |
| Property class | 8.8 |
| Finish | Yellow zinc plated |
| Head style | Hexagon |
| Spanner size | 19mm across flats |
| Nominal head height | 7.5mm |
| Length measurement | Measured from beneath the head to the end of the bolt |
Available Lengths
45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm and 150mm.
The threaded and plain shank lengths depend on the bolt length. Please check with us before ordering if either measurement is critical to your assembly.
Pack Quantities
Quantity options include 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 50, 100, 250, 500 and 1000. Select the required length and quantity from the options above.
Typical Applications
- Machinery and equipment assembly.
- Securing brackets and mechanical components.
- Maintenance and replacement of matching M12 bolts.
- Joints requiring an unthreaded shank through the clamped components.
Fitting Information
Use with matching M12 × 1.75 nuts or tapped holes. Select compatible nuts and washers of a suitable strength for the assembly.
Check that the bolt provides sufficient thread engagement and that the plain shank does not prevent the joint from tightening fully. Use a 19mm spanner or socket and follow the tightening requirements for the application.
