阿联酋采购需求：高强度镀锌平头自攻螺钉

I'm looking for information on your self-tapping screws with a galvanization finish. Please provide details on the specifications, such as the size options and available packaging. Additionally, I would like to understand your pricing structure and any bulk order discounts you may offer. It would be great if you could share your lead times and any quality certifications your products have. This will help me assess how your products fit into my sourcing needs. Looking forward to your prompt response with the relevant details so that we can proceed further.