These charts 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.

Tensile Strength: The maximum load in tension (pulling apart) which a material can withstand before breaking or fracturing. Yield Strength: The maximum load at which a material exhibits a …

Mar 28, 2022 · Bolt strength can be divided into ordinary grade and high strength grade. In this article, we’ll introduce the bolt grades system, the meaning of the bolt head markings grade, you can also check out the metric bolt grades chart.

Metric steel bolts, screws and studs - proof and tensile strength. For metric bolts strength is according ISO 898 Mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9. Bolts, nuts and threaded rods - torque, tension and loads.

Sep 11, 2023 · In the metric system, there are 4 grades, from 4.8 to 12.9. The higher the grade, the stronger the bolt. Here is a table showing the different grades of bolts in the SAE and metric systems, along with their tensile strengths: The materials used for …

Bolt grades are essential for ensuring that bolted joints are strong and durable enough to handle the intended load with the appropriate safety factor. These alphanumeric designations categorize bolts based on their mechanical properties, such as …

ASTM A194 Grade 4 is a standard material specification for high tensile nuts and other internally threaded fasteners, made from carbon molybdenum steel. Grade 4 nuts can be produced by means of hot forging, cold forging or machining from bar stock followed by heat treatment.

Grade 5 bolts are made of medium-carbon steel and are stronger than Grade 2 bolts, while Grade 8 bolts are made of high-carbon steel and are the strongest. The bolt grades and strength chart outlines the physical and mechanical properties of various grades of bolts.

Dec 10, 2022 · A bolt strength chart is an important tool for calculating the tension or clamp force that a bolted joint can withstand. It is used to select the correct size and type of bolt for specific applications, ensuring that the joint will be strong enough to handle any load it may incur.

Bolt Grade Markings and Strength Chart for US Bolts. Head Marking, Grade, Material, Nominal Size Range (inches) and Bolt Strength.