意大利采购需求：内六角螺钉、六角螺母、Gr4六角螺母、Gr6六角螺母、Gr8六角螺母、双头螺栓

We are a small company urgently in need of specific bolts that we haven't been able to source locally in Italy. Our crawler tractor is currently out of commission due to the unavailability of these critical parts. The bolts we require are high strength, partially threaded, and galvanized—details of which we can provide if needed. If your factory has these bolts in stock or can manufacture them, please let us know as soon as possible. We would appreciate any information on pricing, lead times, and minimum order quantities. Thanks in advance for your assistance, and we look forward to your prompt response.