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- In the context of fasteners, such as screws, bolts, and nuts, "grade 5" refers to the strength of the material used to make the fastener. Grade 5 fasteners are made from medium carbon steel and are heat treated to increase their strength. They are stronger than grade 2 fasteners, but not as strong as grade 8 fasteners.
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What is the difference between Grade 2 and Grade 5 hardware?
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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.
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. Grade Marking. Specification. Material and Treatment. Nominal Size (In.) Mechanical Properties. Hardness Rockwell.
Mar 11, 2016 · Grade 5 nuts are a finished hex pattern, and A194-2H or A563-DH heavy hex nuts are required for use with A325 bolts. Another difference is that Grade 5 bolts may be specified from 1/4″ diameter up to and including 1-1/2″ diameter.
Stamping of F1554 and A307 Grade C bolts is a supplemental requirement while color coding is required. Although markings are shown on hex heads, grade markings apply equally to products with other head configurations. All Grade BD products shall be marked “BD”.
Components travel along a screw with broad, square threads to clamp and lift heavy loads. 27 products. Choose from our selection of grade 5 bolts in a wide range of styles and sizes. In stock and ready to ship.
A-2 & A-4 Stainless. 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 5 is the most common grade used in manufacturing assembly. Zinc plating, retards the corrosion rate in a normal atmosphere. Tensile Strength: 120,000 psi minimum. Download the spec table as a PDF: Grade Specs.
