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SAE J429 Grade 2. Grade 2 Cap Screws are manufactured in accordance with SAE J429 and must meet hardness requirements . of 80-100 HRb for diameters up to and including 3/4” and 70-100 HRb for sizes over 3/4” diameter. The wedge tensile strength requirements are 74,000 psi minimum for diameters up to and including 3/4” and
Properties shown are those of coarse 8‐thread heavy hex nuts. Hardnesses are Brinell Hardness numbers. The nut manufacturer, at his option, may add other markings to indicate the use of atmospheric‐corrosion‐resistant steel.
18 Σεπ 2024 · Learn the essentials of bolt and nut grades, including SAE, ISO, and ASTM standards. Discover the differences between US and metric grades, their applications, and how to choose the right fasteners for your project. Whether you need Grade 8, Class 12.9, or stainless steel, this guide covers it all.
This chart helps to identify the grades of bolts using the identification marks on the bolt's head along with the strength and hardness of common grade bolts. Please note the bolt heads may also include the manufacturer's identification stamp, especially with high strength bolts.
12748 East Florence Ave. Santa Fe Springs, CA 90670 • Tel: (562) 944-9549 • Fax: (562) 944-9360 Visit our website at www.pacificcoastbolt.com. — 10 —. ASTM & SAE Grade Markings for Steel Bolts and Screws.
The grade of bolts is stamped on a bolt head as a marking that indicates the type of material the bolt is made of and its strength rating. For instance, Grade 2 bolts are made of low-carbon steel and are the most common type of bolt used in construction.
11 Σεπ 2023 · The higher the tensile strength, the stronger the bolt. There are two main grading systems for bolts: the SAE system and the metric system. SAE system: The SAE system is used in the United States and Canada. The most common SAE bolt grades are 2, 5, 8, and 10. Grade 2: The weakest grade.
