Screw locking Helical Insert is designed to provide a screw-locking feature which will retain screws or bolts under the most severe vibration or varying temperature conditions. In addition to the benefits afforded by free running inserts, Donghai screw locking inserts offer the additional security of prevailing locking torque.

Xinxiang Donghai Industry Co., Ltd. is located in the Hi-Tech Zone , which is the center of highly skilled talents of Xinxiang City. We specialized in manufacturing the different series of Wire Thread Inserts according to National Standard, MS Standard,ZIN Standard, Unified Thread Standard and it also maktes all kinds of related tools. We registered the self-owned brand Thaishell in 2014.Our research and development team consists of young and middle-aged experts having rich experience in fastener industry. We strict controls product quality and management system, to provide individualized product solutions.

Q: Are you a trading company or a manufacturer?A: We are a manufacturer.Q: How long is your delivery time?A: Generally it is 3 days if the goods are in stock. or it is7days if the goods are not in stock, it is according to quantity.Q: Do you provide samples? Is it free or extra?A: Yes, we can provide samples for free, but no shipping fee.Q: What are your payment terms?A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.Welcome to other terms.Q: What are your price terms?A: EXW/FOB/CIF/CFR/FCA/CPT/CIP etc.Q: What is your product range?A: Our product range includes wire thread insert, self taping thread insert, key insert, tap, heavy duty keensert, etc. We strictly implement various quality standards such as GB, ISO, DIN, JIS, AISI NFE, BSW, etc., and also accept non-standard products.Q: Why should I choose you? What are your advantages? What industry do you serve?A: We are a professional manufacturer with many years of production and management experience in the field of fasteners. We can provide our customers with good solutions in terms of production design, production technology, packaging and after-sales service. Customer satisfaction is our only pursuit.Thank you for your time! Your satisfaction and good feedback are our eternal pursuit!If you have another question, pls feel free to Contact Us.