Hengrui Fastener Manufacturer

Threads Per Inch (TPI ) and Thread pitch, What is it?

What is Threads Per Inch(TPI)? Threads Per Inch, often abbreviated as TPI, refers to the number of threads across the one-inch of the thread length. It is a measurement method used to describe the thread density of threaded fasteners such as screws, nuts, and bolts. Only used in the US and other countries that follow […]

Coarse and fine thread (UNC and UNF Thread) Types Fasteners, How to Choose?

In machine design and manufacturing, fastener threads are a vital element that determines how components connect. There are two main types of threads: coarse threads and fine threads. Understanding their different characteristics is critical to selecting the correct bolt thread type for a specific application. What are the commonly used specifications for threads? Threads are […]

Spring washer vs. flat washer: What’s the difference?

What is a Spring Washer? Spring washers, also called disc springs or Belleville washers, have a unique conical shape that compresses and flattens when a load is applied, providing spring force. This is essential to prevent loosening caused by vibration. Another variation is the wave spring washer, which has a wavy, undulating shape that provides […]

11 Effective Locking Bolt Methods: Ensuring Secure Fastening with Locking Bolts

When it comes to ensuring secure fastening in construction, machinery, and other heavy-duty applications, using the right locking bolt method is crucial. As a reliable bolt manufacturer, we understand the importance of choosing the correct locking mechanism to prevent loosening and maintain the integrity of your assemblies. In this article, we will explore 11 effective […]

How to Match Nuts and Washers to Different Types of Bolt Grades?

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Introduction Nuts, bolts, and washers are essential parts that hold many machines and structures together. Making sure these parts fit well and are very important for keeping things safe and working right. But sometimes, the importance of correctly matching these components according to their grade and specifications is often overlooked. This guide offers an in-depth […]

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