Standard: ISO9001 Number: 12819Q21637R1S Issue Date: 2019-12-08 Expiry Date: 2022-12-07 Scope/Range: SALES OF FASTENER Issued By: QMS

Standard: American trademark Number: 5447672 Issue Date: 2018-04-17 Scope/Range: Sales in the US fastener market Issued By: Director of the United States Patent and Trademark Office

Standard: EU trademark Number: 016922693 Issue Date: 2017-11-28 Scope/Range: Sales in the EU fastener market Issued By: EUROPEAN UNION INTELLECTUAL PROPERTY OFFICEL

Standard: CHINA TRADEMARK Number: 17132974 Issue Date: 2016-08-21 Expiry Date: 2026-08-20 Scope/Range: Sales in the CHINA fastener market Issued By: CHINA TRADEMARK OFFICE

Standard: Zhejiang Province Science and technology small and medium-sized enterprise certificate Number: 20183304000007 Scope/Range: Issued By: Science and Technology Department of Zhejiang Province

Standard: A patent for a washer Number: ZL 2017 2 1713374.3 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property

Standard: A patent for a square nuts Number: ZL 2017 2 1711378.8 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property

Standard: A High-strength hexagonal nut Number: ZL 2017 2 1713373.9 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property

Standard: A High-strength hexagonal bolt Number: ZL 2017 2 1711387.7 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property

Standard: A nylon lock nut Number: ZL 2017 2 1712161.8 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property

Standard: A kind of Thread rod Number: ZL 2017 2 1711377.3 Issue Date: 2017-12-11 Scope/Range: Issued By: Chinese intellectual property