QINGDAO SINO PRECISION HARDWARE CO., LIMITED is a certified by ISO9001:2015 industrial and trade integrating enterprise which focuses on the production and R&D of standard and non-standard nuts, washers, and taps.

   Since 2013, its founders have been engaged in the fastener industry. After more than a decade of in-depth development of the global market, we have won the trust of hundreds of customers and established long-term partnerships. As the market share continues to rise, in order to the growing market demand and meet the requirements of customers in the industrial market for high-quality products; in 2022, we completed the transformation from a trader to a manufacturer by investing in a nut and a washer plant by way of capital injection.

   Besides, there are over 200 long-term and mutually cooperated factories of other fasteners in our database. Now, SINO has more than 150 items with different packing that supplied regularly to our customers which are continuously expanding. Strict production procedure and quality controlling are carried out in per product batch by our well-trained employees  .........