China Ocean Steel Group Co., Ltd. Business Overview

Manufacturing various screws with processing technology cultivated since our founding! We also accommodate all screws that require special sizes and processing.

Nakauumi responds to changing needs as a specialist in fully threaded products by providing proposals that can accommodate detailed requests. We ensure stable quality and supply by securing a rich inventory and sources for special steel. We value long-term relationships with our customers and have adapted our manufacturing to meet various requests for fully threaded products. We aim to be the go-to choice for all things related to fully threaded products, whether it be size, material, special processing, or delivery time. 【Product Lineup】 ■ Cut bolts (fully threaded, alloy) ■ Long bolts ■ Cut bolts for chemical use (fully threaded) ■ Double-ended bolts ■ Single-ended bolts ■ Other screw products ■ General metal processing products *For more details, please refer to the PDF document or feel free to contact us.

boltContract manufacturingProcessing Contract