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The wire thread insert is a new type of internal thread fastener. It is a helical coil precisely processed from high-strength, high-precision, and smooth-surfaced cold-rolled rhombic stainless steel wire, and is a concentric body of high-precision internal and external threads. After the wire thread insert is installed, a high-precision internal thread that conforms to international standards is formed, and its various performances are superior to the internal thread formed directly by tapping.
After the wire thread insert is installed, the tolerance of the threaded hole depends on the manufacturing tolerance of the wire thread insert profile and the tolerance zone of the threaded hole for installing the wire thread insert. The threaded tolerance of the installation hole mainly depends on the tapping accuracy of the installation hole for the wire thread insert. Usually, it forms a 6H grade, and when the accuracy is high, it can reach a tolerance zone of 5H or 4H grade. The user of the wire thread insert can select a special tap, tapping method (manual tapping, machine tapping), and lubrication method according to the required tolerance zone to ensure that the accuracy and any usage requirements you require are met.
| Number of coil turns of the thread insert | |||||||
| Specification | 1D | 1.5D | 2D | 2.5D | 3D | Outer diameter before installation | Drill bit diameter |
| St1.6×0.35 | 3.1 | 4.5 | 6.2 | 2.1~2.3 | 1.6 | ||
| St2×0.4 | 3.2 | 5.3 | 7.4 | 9.5 | 11.6 | 2.5~2.8 | 2.1 |
| St2.5×0.45 | 3.6 | 5.9 | 8.2 | 10.5 | 12.8 | 3.2~3.5 | 2.6 |
| St3×0.5 | 4.2 | 6.8 | 9.4 | 12 | 14.6 | 3.7~4.0 | 3.1 |
| St4×0.7 | 4 | 6.6 | 9.1 | 11.7 | 14.2 | 5.0~5.3 | 4.2 |
| St5×0.8 | 4.4 | 7.1 | 9.9 | 12.6 | 15.3 | 6.3~6.6 | 5.2 |
| St6×1.0 | 4.3 | 6.9 | 9.6 | 12.2 | 14.9 | 7.5~7.9 | 6.3 |
| St8×1.25 | 4.8 | 7.7 | 10.6 | 13.5 | 16.5 | 9.8~10.1 | 8.3 |
| St10×1.5 | 5 | 8.1 | 11.2 | 14.2 | 17.3 | 12~12.5 | 10.4 |
| St12×1.75 | 5.3 | 8.4 | 11.6 | 14.8 | 18 | 14.3~14.8 | 12.4 |
| St14×2 | 5.4 | 8.7 | 11.9 | 15.2 | 18.40 | 16.7~17.2 | 14.5 |
| St16×2 | 6.3 | 10.00 | 13.7 | 17.5 | 21.2 | 18.8~19.4 | 16.5 |
Xinxiang Jinbeike Machinery Co., Ltd. was established in 2017. It is a national high-tech enterprise specializing in the research and development, design, production, sales and service of thread sleeves. It produces a full range of thread sleeves. The main products include: wire thread inserts, tailless thread inserts, self-tapping thread inserts, pin-type thread inserts, pipe thread inserts, etc., as well as related supporting installation tools. Since its establishment, the company has aimed to meet the actual needs of customers and develop and produce high-quality hardware fasteners. It strictly implements national and related aviation, and new energy standards, and has established its own product inspection standards and systems.
Q: Are you trading company or manufacturer ?
A: We are manufacturer and also do trading.
Q: How long is your delivery time?
A:Standard parts: 5-10 days,Non-standard parts: 10-25 days.We will make the delivery as soon as possible with the guarantee quality.
Q: Do you provide samples? Is it free or need extra fees ?
A: Yes, we could offer free samples for the items in stock,just need to pay shipping cost. Mold fee is necessary for customized item.
Q: What is your terms of payment ?
A:Payment<=3000 USD, 100% inadvance. Payment>=3000USD, 30% T/T in advance ,balance before shipment.
Q: What's your price terms ?
A: We currently accept wiretransfers, paypal, and credit cards.
Q: How about your price?
A: High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
