English繁體 Main Products : Lock Nut,Weld Nut,Nylon Nut,Flange Nut,Special Nut,Stainless Steel Nut,Punch & Die



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Yeh Cheng Machinery Co., Ltd.
Tel: 886-6-230-5788
Fax: 886-6-230-7699
E-mail: y5551075@ms35.hinet.net
No. 236-1, Sec. 1, Zhongshan
Rd., Kuei-Jen Dist., Tainan
City 71142, Taiwan

About us

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YEH CHENG MACHINERY CO., LTD. is a nut manufacturer located in Tainan Taiwan, which was founded by President Kuei-Ming Cheng in 1993. With the leadership of professional technologies and the spirit of constant advancement in quality in the preliminary stage, it focuses on the development of automobile fastener market and has international automobile quality certification.

YEH CHENG possesses an R&D team with 10 years of experience since establishment, beginning with standard Hex Flange Nut to gradually transform to high value-added, customized products. In addition, the forming methods are all cold forging at the moment, mainly developing all kinds of Special Nuts, especially for Special Flange Nuts.

In the meantime, we value the integration of quality and technologies more as well as put it into practice. With constant enhancement, upgrade of new machines, it can increase high precision/QC equipment in order to substantially reinforce the competitiveness of products’ quality.

In the future, YEH CHENG will still stick to the policy of “Quality First, Pursuit of Perfection, Constant Advancement, and Customer’s Satisfaction” in order to consolidate the value of enterprise and products. It is YEH CHENG’s goal to have the long-run business by satisfying customer’s needs and gain customers’ trust.


1993 YEH CHENG MACHINERY CO., LTD. was founded.
2001 Certified by ISO 9002/1994.
2003 Certified by ISO 9001/2000.
2008 Certified by ISO/TS16949.
2009 The Central Lock Machine (Patent NO. M373975) was developed to press 2,3, and 6 points.

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