Fastener Performance Grade Standards
International Standard (ISO) NO. Code Name Note 1 ISO 898-1 Mechanical properties of carbon steel and alloy steel fasteners, Part 1: Performance grades of coarse and…
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What Is an A193 B7 Stud Bolt?
ASME A193 B7 threaded rod is a high-end alloy steel bolt used in high-temperature and high-pressure environments. A193-B7 studs are often used in conjunction with A194-2H…
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Complete Guide to Wing Nuts
Wing nuts are a common type of nut, named for their unique appearance. They are easy to install and can be used with bolts, studs, and…
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What Types of Non-metallic Washers Are There?
PTFE Washers Polytetrafluoroethylene gaskets, also known as Teflon gaskets, is known as the “king of plastics” polytetrafluoroethylene material (PTFE) made of gaskets, in the field of…
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What Are the Different Grades of Bolts?
Bolt grade (also known as “strength grade” or “performance grade”) is a standard used to indicate the mechanical properties of the bolt material and after heat…
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What Are the Materials and Types of Washers?
What Is a Washer? Washers are fasteners used between the bearing surface of bolts, screws, or nuts and the connected parts. They serve to protect the…
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Cold Heading Process for Fasteners
What Is the Cold Heading Process for Fasteners? Cold heading for fasteners is a forging method that uses molds and cold heading equipment to upset metal…
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What Is a Chemical Anchor
Chemical anchors, also known as chemical bolts, are a new type of fastener material. They consist of a screw, nut, washer, and chemical agent. Chemical anchors,…
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How to Choose Self-Tapping Screws for Decoration?
Self-tapping screws are a common type of screw used in interior decoration. These screws are widely used for their drilling capabilities. Many decoration materials come with…
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Bolts and Screws, What’s the Difference
In the fastener industry, bolts and screws are the most commonly used. They both consist of a shank and a head, and their head shapes are…
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Guide to The Way To Prevent Nut Loosening
In a vibrating environment, the loosening of fasteners is like an “invisible bomb” that may cause equipment failure at any time. Today, BD Fastener shares a…
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Screw Types and Usage Guide
Screws are common tools in our daily lives, used to connect parts and materials. But there are many types of screws. Do you know how to…
