美国采购需求：不锈钢螺丝，平头螺丝，内六角螺丝，帽螺丝，不锈钢紧固件，平头内六角螺丝

I'm reaching out to inquire about your pricing for a specific type of screws that we are looking to purchase in bulk. We need a quantity of 12,000 units, and they should come with the necessary nuts and washers. The screws should meet Grade 5 specifications and have a black finish. Additionally, please include the shipping costs to Venezuela in your quote. If you have any minimum order requirements or lead times for production, kindly let me know. I appreciate your assistance and look forward to your prompt response with the details!