Grades of Bolts - Bolt Grade Marking Chart | AFT Fasteners
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.
ASTM A194 Grade 7 Specification - Boltport Fasteners
Grade 7 nuts can be produced by means of hot forging, cold forging or machining from bar stock followed by heat treatment. ASTM A194 specification covers requirements for chemical composition, heat treatment, hardness, proof load, etc., for Grade 7 nuts.
Bolt Grade Markings and Strength Chart
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. Proof Load: An axial tensile load which the product must withstand without evidence of any permanent set.
Specifications: ASTM A563: Carbon and Alloy Steel Nuts ASTM A194/A194M: Carbon and Alloy Steel Nuts for Bolts for High‐Pressure and High‐Temperature Service. Other, less common, grades exist but are not listed here.
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. Proof load: An axial tensile load which the product must withstand without evidence of any permanent set.
Hex Bolt Identification, Markings and Strength Chart Table Guide
Hex Bolt Identification, Markings and Strength Chart. Additonal information on bolts is located at the bottom of the webpage. Note: Some bolts share identical head identification and have significantly different strengths.
Strength Requirements by Grade - Portland Bolt
ASTM A307 grade C has been replaced by ASTM F1554 grade 36. Grade 2 requirements for diameters ranging from 1/4" through 3/4" only apply to headed fasteners up to and including 6" in length, and to studs of all lengths.
• 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
Bolt Grades [with Charts] - EngineerExcel
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 …
Bolt Grades Chart and Strengths - M3Tools
Aug 29, 2023 · Bolt grades are a standardized system for identifying the mechanical properties of a bolt, including tensile strength, yield strength, and hardness. These measurements are crucial for engineers and builders to ensure that the bolts they use are suitable for specific applications. Let's delve deeper into bolt grades and their importance.