12MM Enhance Strength Key Locking Inserts Stainless Steel 304 For Thread Repair

Information

The bolt socket is a special fastener with threads inside and outside, and 4 or 2 bolt keys (below M6) on the outer thread. The products are mainly used in military, aerospace, railway locomotives, vibration machinery and other products that require high thread strength.
From the appearance of the product, the bolt sleeve can be divided into thin-wall type and heavy-duty type. There are also reinforced and extra heavy.
The most basic function of the bolt sleeve is to repair the internal thread and strengthen the external thread. As a thread repair method, the bolt sleeve can quickly and effectively repair damaged threads; when used on low-strength materials, it can greatly enhance the strength of the threaded hole.

Since its development, it has gone deep into aerospace, aviation, and railway machinery. Many different fields and industries such as electronics and electrical engineering. The main feature of the product is that there are 2-4 pre-locking keys on the external thread.

Specification

Advantage

• 1: threaded mounting pin sheath may effectively enhance the fastening strength and safety threaded hole, a threaded hole extended periods of time, improve product quality.
• 2: In some spark plugs, molds and other machinery and require frequent removal temperature of the screw holes on the corrosive bolt means threaded screw hole jacket may be enhanced wear resistant-corrosion resistant.
• 3: The bolt thread sheath has a repair function. When the screw thread of the machine's threaded hole slips due to various reasons, use the special tap of the bolt thread sheath for tapping, install the bolt thread sheath, and the threaded hole with the slippery thread can be quickly repaired.
• 4: The installation tools and installation methods of the bolt socket are simple, and the installation is simple and can save time and improve work efficiency.
• 5: Bolt sockets are installed on machinery molds, products that require very high threaded hole strength and fastening safety performance on products such as aerospace industry, products, automobile industry, and shipbuilding industry

Application

1. Quickly and effectively repair damaged threads on a variety of materials.

2. Enhance the thread strength on light materials, such as large and medium-sized non-ferrous metal castings, die castings and ductile ferrous metal base materials, as screw holes that are often screwed in and out.

3. It is especially suitable for use in environments requiring high-strength internal threads, with strong seismic and pull-out resistance. High strength wire thread insert than normally used, the base body is firmly connected with the work does not come off the substrate in the impact or vibration environment.

4. Remedy the wrong hole and avoid reprocessing the wrong part.

Installation method

1. Drilling hole: The drilling depth should be greater than the length of the bolt sleeve. Note that the size of the tapping drill is larger than the usual number.
2. Thread tapping: The size of the tapped thread should correspond to that of the external thread of the bolt sleeve.
3. Installation: Screw the bolt sleeve into the corresponding threaded hole, and require the bolt sleeve to be lower than the surface of the workpiece.
4. Lock key: Use a suitable tool to press the bolt fixing key of the bolt sleeve into the bottom hole.

Installation tool

Tools include: drill bit, wire tap, plug gauge.
Bolt screw sleeve drill bit: When drilling the threaded hole, the drill bit of the plug screw sleeve should be larger than the diameter of the internal thread hole of the plug screw sleeve and smaller than the diameter of the external thread of the plug screw sleeve.

FAQ

Q: Are you a trading company or a manufacturer?
A: We are a factory.
Q: How long is your delivery time?
A: If the goods are in stock, it usually takes 3-10 days. Or if the goods are not in stock, it is 15-20 days, calculated by 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 ≤ 4000 USD, 100% prepaid. Payment ≥ 4000 USD, 30% T/T in advance, balance before shipment.
Q: Do you accept customization?
A: Yes, we can accept customization of materials, specifications, paint colors, length accuracy and some non-standard products