赞比亚采购需求：螺栓、螺母、螺钉、垫圈、锚栓、螺纹杆

I am reaching out to request detailed quotes for a few specific fasteners and hardware components we need. Firstly, we require high tensile hexagon studs with specified dimensions, designed to meet our stringent quality standards. Additionally, we need compatible nuts and washers that can accommodate flanges drilled per established industry standards at a high class rating. Furthermore, we are looking for high tensile hexagon bolts that come with corresponding nuts and washers. These should also be tailored to fit flanges drilled according to the specified class rating, with precise thread lengths. Please include your best pricing, lead times, and any applicable certifications or specifications that support the quality and compliance of these products. Thank you!