Tianjin Primo Technology Co., Ltd. is a professional company for the fastener 
manufacture and exporter in China. Our company have 200+ set equipment for the fastener manufacture, the annual production capacity more than 5000 tons, Our products including drywall screws, chipboard screw, self tapping screws, self drilling screws, blind rivets, coil nails, 
strip nails, concrete nails, staples, anchors, thread rod, bolts, nuts and washers etc.