ASTM A 453 Grade 660-B Heavy Hex Nuts are made of austenitic stainless steel, precipitation hardening. This grade has high tensile strength and is used in many industries, such as jet engines and supercharger components. They are also available in distinguished sizes, such as metric and imperial. In addition to the many advantages of this steel, it also offers superior corrosion resistance and weldability.
These bolts are available in different finishes. They can be zinc-coated or sherardized for a variety of purposes. Some manufacturers offer them in a forged zinc finish. Some also offer a choice of blind rivets, ensuring a high degree of safety for workers. The ASTM A 453 GR 660 Class B Heavy Hex Nuts specification requires threads to be the same size as the bolt head.
This heavy hexagonal nut is available in several different grades. The most common grades are ASTM A 453 GR 660 Class A Heavy Hex Nut, Class B Heavy Hexagonal Nut, and Slotted Heavy Hex Nut. Class C Heavy Hex Nuts and Hex Castle Nuts are also available. Listed below are a few different styles of these nuts.
As the name implies, ASTM A 453 Grade 660-B Heavy Hex Nuts meet a wide range of requirements. The specification provides the maximum yield strength of 85 ksi. This strength is equal to the minimum of EN 10269 1.4980 and ASTM A638 Type 2. Moreover, A453 Grade 660-B Heavy Hex Nuts are equivalent to EN 10269 Type 2 for impact resistance.
ASTM A 453 Grade 660 Class B Heavy Hex Nut features a lower ferrite content, making them suitable for applications that require a high degree of corrosion resistance. Stainless Steel ASTM A 453 Grade 660 Class C Washers also possess lower ferrite content, making them suitable for use in environments with high temperatures.
In addition to ASTM A453 Grade 660 Stud Bolts, ASTM A 453 Grade 660 Stud Bolts are austenitic stainless steel fasteners. These nuts and bolts can withstand temperatures up to 700degC. As such, they are useful in high temperature fastening applications. They can also be used in valve flanges.
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