From £0.13 Excl. VAT
Grade 12.9 high tensile bolts offer exceptional strength and reliability, making them a preferred choice for applications requiring high tensile strength and resistance to mechanical stress. The "grade" classification signifies the strength of the bolt material, which is determined by its alloy composition and heat treatment.
Grade 12.9 bolts are often utilised in industries such as automotive, aerospace, construction, and machinery manufacturing, where reliable and robust fastening solutions are essential.
Size availability: M6, M8, M10, M12, M14, M16, M18, M20, M24, M30, M36
Finishes include: Zinc, unplated self colour
| Thread Length Calculator | |
| Up to 125mm = | 2 x thread diameter + 6mm |
| 125 - 200mm = | 2 x thread diameter + 12mm |
| Over 200mm = | 2 x thread diameter + 25mm |
| Metric TPI Chart | |||||
| Diameter | TPI | Diameter | TPI | Diameter | TPI |
| M3 | 0.50 | M14 | 2.00 | M33 | 3.50 |
| M4 | 0.70 | M16 | 2.00 | M36 | 4.00 |
| M5 | 0.80 | M18 | 2.50 | M39 | 4.00 |
| M6 | 1.00 | M20 | 2.50 | M42 | 4.50 |
| M7 | 1.00 | M22 | 2.50 | M45 | 4.50 |
| M8 | 1.25 | M24 | 3.00 | M48 | 5.00 |
| M10 | 1.50 | M27 | 3.00 | M52 | 5.00 |
| M12 | 1.75 | M30 | 3.50 | M56 | 5.50 |
Please note our images are for display purposes only, thread length will vary.
View our range of grade 12 nuts here
View our range of washers here
More information on coatings here
