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Interchangeability of Grade 2 and A307A Fasteners. In general, since the minimum strength requirement of a Grade 2 is greater than that of an A307A, a Grade 2 can be successfully utilized in applications where an A307A is specified, as approved by the “Engineer . of Record”.
ASTM & SAE Grade Markings for Steel Bolts and Screws. Grading* Specification Marking. Material. Bolt & Screw Size, Inches. Min. Yield Strength. Min. Tensile Strength. 307A ASTM A307 GR A. Low or Medium Carbon 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.
29 Αυγ 2023 · Grade 2: This is the standard grade for bolts with no markings. They have a tensile strength of up to 74,000 PSI for bolts over ¼ inch. Grade 5: Identified by three radial lines, these bolts have a tensile strength of up to 120,000 PSI.
9 Ιουν 2022 · The SAE J429 standard has specific requirements for bolts, screws, studs, sems, and U-bolts up to 1-1/2" in diameter. Bolts meeting SAE J429 standards have radial lines engraved on the bolt head. Grade 2, 5, and 8 are the most common grades of fasteners according to the Society of Automotive Engineers standard.
standards have radial lines engraved on the bolt head. Grade 2, 5, and 8 are the most common grades of fasteners according to the Society of Automotive Engineers standard. The higher the grade is, the stronger the material that makes up the fastener. The grade also represents the tensile strength, yield strength, and proof load of a fastener ...
11 Σεπ 2023 · 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. It is typically used for light-duty applications. Grade 5: A medium-strength grade.
