新加坡采购需求：螺栓、螺母、垫圈、膨胀锚栓、螺纹杆和螺柱、螺钉

I'm reaching out to request pricing details for a few specific items we are looking to procure. We need a total of 2250 sets of stainless steel wedge anchors, as well as 3400 sets of carriage bolts along with nuts. Additionally, we're interested in 5400 sets of self-drilling screws that include sealing washers. Could you also provide information on lead times and any available discounts for bulk orders? We're aiming to finalize our purchase decision soon, so your prompt response would be appreciated. Looking forward to your detailed quote!