印度采购需求：紧固件、干壁螺钉、SDS、自攻螺钉、自钻螺钉、刨花板螺钉

We are looking to source black phosphated drywall screws in various specific sizes to meet our project needs. Additionally, we're also interested in procuring chipboard screws and hex self-drilling screws. Could you please provide us with your pricing, availability, and any relevant specifications? It would be great to know about delivery timelines as well. Looking forward to your prompt response.