about us


company profile

in 1989, Dar Yu was founded in Kaohsiung, Taiwan, initially focusing on distributing fasteners.

In 1993, in response to customers' increasing demand for diverse packaging options in the DIY market, we established a plastic ejection manufacturing facility that specialized in producing plastic boxes of varying shapes and sizes.

In 1999, Dar Yu established its sister company, K-tool Enterprise Co., Ltd., to produce hand-tools and high-end insulated screwdrivers.

In 2010, to boost productivity, Dar Yu moved its packing lines and storage to a new 6,000 square meter facility in Renwu Industrial Park.

In 2022, the K-TOOL brand was officially renamed to KTC and began producing high-quality bits and sockets.


We supply over 3,000 items of fasteners and screwdrivers regularly to the overseas customers.

Through our robust supply chain comprising of joint ventures and subcontractors, Dar Yu provides one-stop shopping service to our
customers, offering all kinds of MIT (Made in Taiwan) fasteners and screwdrivers, including customized packages.

For our customer

Dar Yu continuously expands its product line by developing new types and shapes of packaging, thus providing a comprehensive solution to our customers. With the help of our highly efficient packing lines and professional packaging crews, we are able to provide strong support to our customers as a reliable supplier.


We carry out strict quality control on each product batch according to AQL standards in our well-equipped laboratory to ensure only qualified products are delivered to our customers. In addition, to enter the EU market, we provide VPA/GS and VDE/GS certified nut-drivers and screwdrivers.

Customer relation

For the past 30 years, we have provided high-quality products, exceptional services, and a wide range of product selections to establish long-term business relationships with our customers. At Dar Yu, we possess the expertise to design customized hardware store layouts featuring complete series of fasteners and screwdrivers. As a reliable, supportive, innovative, and loyal business partner, Dar Yu is definitely the best choice for you.