赞比亚采购需求：螺栓、螺母、螺钉、垫圈、锚栓、螺纹杆

I'm looking for a quote on a couple of high tensile fasteners. The first is a specific type of stud that includes nuts and washers designed for certain flange specifications. I need details on sizes and materials for optimal performance in high-pressure environments. Additionally, I'm interested in another type of bolt that also comes with matching nuts and washers, suitable for different flange classes. Please provide pricing, lead times, and any available options. Looking forward to your response!