In the wide range of goods of alstertaler schrauben & präzisionsteile lothar mewes gmbh you will find high-quality threaded bolts with expansion shank according to DIN 2510 as well as corresponding hexagon nuts and cap nuts. The expansion bolts and nuts are available in steels according to DIN 17240, 267-13 and 29 as well as stainless steels according to DIN 17440, 267-13 and 29. Contact us with any questions – we are happy to advise you
Compared to conventional variants, expansion bolts are generally designed to be noticeably elastic and stretchable. That’s the reason their traction hardly changes when the joint settles over time. Occurring alternating loads cause the bolt to continue to expand or contract without overstretching, cracking or loosening. Anti-rotation is not necessary. Compared to standard bolts, expansion bolts therefore have a longer shank which is also slimmer than the thread. This shank gives the bolts the required resilient properties and makes them insensitive to temperature changes and other influences.
Due to their technical specifications, expansion bolts are used wherever strong temperature fluctuations and thermal expansion occur. A classic area of application: engine construction and general mechanical engineering where suitable bolts are indispensable. For example, expansion bolts are used to fasten cylinder heads in internal combustion engines of motor vehicles. They ensure that the cylinder-head gasket is sufficiently compressed at all temperatures encountered during normal operation and the resulting thermal expansion of the cylinder head. Thus, the cylinder-head is able to fulfill its function at all times.
You can obtain expansion bolts and corresponding nuts according to DIN 2510 in numerous different designs:
Examples:
Bolts
| Nuts
|
Pods
Below you will find an overview of the materials from which our expansion bolts are manufactured:
AD2000-W7 | AD2000-W2 | AD2000-W10 |
1.1181 | 1.4301 | 1.4301
|
1.4923
| 1.4404
| 1.4541
|
1.5680
| 1.4541
| 1.4571
|
1.7218
| 1.4571
| 1.5680
|
1.7225
| 1.4980
| 1.6909
|
1.7709
| 1.4986
| 1.7218 |
Certificates
Acceptance test certificate according to EN 10204 and other standards:
Do you have any questions about our services? We will be happy to provide you with comprehensive advice on our range of expansion bolts. Simply contact us by phone or e-mail – we are looking forward to your inquiry!
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