Description
Replacing the original cylinder head screws with high-strength Pro-Series 18.8 studs.
This is necessary when making large increases in Performance, as the original cylinder head screws elongate during operation and the cylinder head can lift off.
The Pro-Series 18.8 stud bolts with a tensile strength of 1850 N / mmý provide a solution to this.
In addition, these stud bolts do not have to be replaced after dismantling, but can be reused.
Technical details:
Manufacturer part number: P102081410
Kit content: 14 stud bolt (M11) / 14 nut (M11) / 14 washers / assembly lube/ assembly instructions
Tensile strength: PS 18.8 steel / 1850+ N/mmý (270.000+PSI)
The Pro-Series 18.8 sets are high-strength stud bolts manufactured in Germany.
A special steel is used which, after tempering, has a tensile strength of 1850 + N / mmý.
All threads are Formed and not cut as usual. The so-called rolling of threads can increase the strength of the tooth flanks by around 30%. All Pro-Series products are supplied with a nickel coating or optional with a burnished protecting against corrosion in the long term, even under the toughest conditions. Pro-Series stud bolts have a hexagon socket drive on the head side For screwing in the stud bolts. Due to a cone on the engine block side of the bolt, these are not supported on the thread flanks when the nuts are tightened, but in the bore of the thread in the engine block. This support protects the threads when Racing engines are frequently rebuilt.
Pro-Series advantage over other manufacturers is the nuts and washers included in the set, these also have a tensile strength of 1850 N / mmý.
Application list:
M2 F87 MY 2015-2021 370PS 410PS 450PS
M3 F80 MY 2014-2018 431PS 450PS 460PS
M4 F82/F83 MY 2014-2020 431PS 450PS 460PS 500PS
Warranty
Our warranty terms are based on each manufacturer’s guidelines. Depending on the specific manufacturer, customers may be eligible to process warranty claims either directly with the manufacturer or through us. For detailed information or assistance with warranty inquiries, please contact our support team.
Shipping & Returns
Shipping time will be provided once your order has been processed. Please note that shipping options cannot be changed after your order has been placed.
For returns, kindly contact our support team for guidance. We'll walk you through the process and ensure everything goes smoothly.
Frequently Asked Questions
OEM (Original Equipment Manufacturer) parts are made by the vehicle’s original manufacturer and guarantee perfect fit and performance. Aftermarket parts are produced by third-party companies and may offer enhanced performance or cost savings, but compatibility should always be verified before purchase.
Yes, we work with a network of certified and approved workshops to ensure professional installation of your performance parts. Get in touch with us to find a recommended installer near you.
Yes, but it’s important to ensure they work together without causing performance issues. Some aftermarket parts are designed to complement OEM components, while others may require full system upgrades.
Yes, once your order is shipped, a tracking number will be emailed to you.
Orders can only be modified or canceled before they are processed. Please reach out to us as soon as possible.
If you're not completely satisfied with your purchase, you may return it within 7 days of receiving your order for a full refund, excluding delivery costs. Please note that this policy does not apply to special order parts. To qualify for a refund, items must be unused and returned in their original packaging.