Search results
Results from the WOW.Com Content Network
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.
How Strong Are Grade 8 Bolts? Grade 8 bolts are the highest grade of bolts under the SAE J429 standard, which means they have the highest strength. Here are their various strength specifications:
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 specific permanent deformation.
Grade 8 - Medium Carbon Alloy Steel, Quenched and Tempered - up to 1 1/2" proof load 120000 psi, minimum tensile strength 150000 psi. Lamalloy - Medium Carbon Alloy Steel, Quenched and Tempered - up to 1 1/2" proof load 145000 psi, minimum tensile strength 180000 psi. 1 psi = 6.9 kPa.
Grade 7L. Compatible denotes commercially available nut having suitable mechanical properties and dimensional configuration or style which will make it possible to obtain the desired bolt load. Higher strength nuts or nuts of equal strength may be a suitable substitute provided bolt standard allows.
Get a quick reference PDF for bolt grades chart and strengths. Find out bolt grades, proof loads, and tensile strengths with ease.
Strength Requirements by Grade. Tick the boxes to the left of the grade mark to bring up the Compare button. This will reduce the table to the selected grades for easy comparison. Nominal Size (In.) All specifications are ASTM unless otherwise noted.
Grade 8 hex bolts have 6 marks on the head. tensile strength is 150,000 lbs per square inch. ultimate shear strength. Grade 5 bolt. Gr 5 Hex bolt capability in yield (stretch) = 92,000 lbs / in2 x .03349 in2 = 3081 lbs minimum. Grade 5 hex bolt capability in tension (failure) = 120,000 lbs / in2 x .03349 in2 = 4019 lbs minimum. Grade 10.9 bolt.
Bolt Strength Charts. To help you choose the right bolt strength, here is a chart illustrating specifications for different bolt strengths based on their grade or classification: Table 1: US Standard / Imperial System. Table 2: Metric System (with US Standard equivalent)
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.