Micro Fasteners
- General
- Material
- Advantages
Inserts:- Two Types of Inserts:
- Free Running
- Screw locking
Screw thread inserts have a driving “tang” for installation which is notched for easy removal.
The polygonal twist of the Screw Thread Insert result in a high degree of frictional connection and therefore forms a screw lock, so no self-loosening. Additional locking using split pins, wires or washers are not necessary.
Screw Thread inserts provide flexibility in designing and manufacturing.
The design characteristics of Screw Thread inserts allow each coil to adjust independently for maximum surface contact with the parent material. As a result, loads are distributed more evenly. Stress and fatigue concentrations are reduced to maximize thread strength, thus, increasing the reliability and life of the fastening system.
The diamond-shaped wire design allows the inserts to engage the threads in the parent material by which they do not need a thick wall structure to support the internal and external threads, thereby saving space and weight while providing high strength.
Screw Thread inserts are incorporated in softer metallic materials to give them steel like thread performance. This has enabled industries to use lighter weight materials such as Aluminum (and Alloys) without having to give up thread strength.
Inserts are used in engines, gear boxes, fuel systems, radar, avionics, and aircraft applications. They are also used by the military and in many other electronic, mechanical, and commercial applications.
Precision engineering, exact manufacturing standards, and stringent quality control checks are done during entire manufacturing process to assure a high quality product that meets / exceeds all applicable requirements. Screw Thread inserts have been put through Go – No Go gauge test as well as comprehensive dimensional inspections and metallurgical analysis for attaining final Product.
The following insert materials are specifically engineered to meet the demanding requirements of our customers’ applications.
This is the most popular insert material, and it will satisfy most application requirements for strength, corrosion resistance and temperature capability. The inserts can be used in applications with a temperature range from -50° C to 400° C. Cold rolling the stainless steel wire to a diamond shape work-hardens it to a hardness of HRC 40 - 45 and have a smooth finish. The inserts become slightly magnetic from the work-hardening that occurs during the manufacturing process.
This is another insert material, and it will satisfy most application requirements for strength, high corrosion resistance and temperature capability. The inserts can be used in applications with highly corrosive environment and temperature range from -50° C to 400° C.
Screw thread inserts are available in lengths from 1 to 3 times the nominal diameter of the bolt or screw.
Screw Thread inserts are available in Metric, Unified Coarse (UNC), Unified Fine (UNF) thread sizes. Screw Thread inserts can be manufactured using 304 Stainless Steel as well as in 316 Stainless Steel
We are capable of manufacturing any special type of Screw Thread inserts as per customer needs / requirements. We have successfully developed = M 23 x 2.25 pitch
- High-strength, Strong Corrosion and temperature-resistant. Even when exposed to high temperatures and humidity, Screw Thread inserts remain stable and reliable.
- Non-wearing Long-lasting. The high surface quality of the rolled thread made of austenitic chrome-nickel steel (18-8) ensures a high-strength, wear-resistant thread with a constant, extremely low thread friction torque.
- Uniform load and stress distribution
- The elastic properties of the Screw Thread insert allow uniform load and stress distribution along the entire length of the screw.
- Reduced thread friction:- Non seizure of bolts. For a screw tightening application, pre-load force can be adjusted more precisely eliminating friction, thereby using it more efficiently.
- Downsizing:- Perfect for lightweight construction. High-strength bolts can be used in materials with low shear strength.
