What does A325 mean on a bolt?
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 11⁄2 inches (13 to 38 mm) in diameter.
What is the longest A325 bolt?
Stock F3125 Grade A325 Structural Bolts
Length | Diameter | |
---|---|---|
1/2″ | 3/4″ | |
23⁄4 | – | 16132 |
3 | – | 16134 |
Other sizes available upon request |
Is A325 bolt stronger than Grade 8?
Strength Differences A325 bolts are typically manufactured from a medium carbon steel (although they can be made from an alloy) while SAE grade 8 bolts are made from a medium carbon alloy steel. Grade 8 bolts are significantly stronger than an A325.
Are A325 bolts high strength?
ASTM A325 covers high strength structural bolts used in structural steel connections. A325s have a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting steel to steel.
How do I identify an A325 bolt?
All A325 type 1 bolts are simply marked with “A325” and the manufacturer’s logo. The exceptions are as follows: A325 type 3 weathering steel bolts are underlined (A325). Fully threaded A325 structural bolts are designated with a “T” (A325T).
What grade is an A325 bolt?
SAE grade 5 bolt
The A325 bolt strength, or SAE grade 5 bolt strength, is usually used for structural bolting projects.
What is the strongest metal bolt?
BUMAX® Ultra has proven itself as the world’s strongest bolt – in various highly-demanding critical fastener applications around the world where standard fasteners are simply inadequate.
What is the hardest grade bolt?
Grade 8
Grade 8 is the hardest, Grade 5 is medium, and Grade 2 is the softest. This is the most common grade of steel fastener and is the least expensive. Grade 2 bolts have no head marking, although sometimes a manufacturer’s mark is present. This grade of bolt is made from low or medium carbon steel.
How much weight can a A325 bolt hold?
ASTM A325 bolts are available in diameters from ½ to 1-1/2 inch diameters (for diameters greater than 1-1/2, ASTM A449 specifications should be considered) with a minimum tensile strength of 120,000 PSI for diameters one inch and less and 105,000 PSI for sizes over one inch to 1-1/2.
Is A325 stronger than Grade 5?
As a comparison, the ASTM A325 bolt is roughly equivalent to the SAE grade 5. A grade 8 bolt would be one that meets ASTM A490 standards. The A325 bolt strength, or SAE grade 5 bolt strength, is usually used for structural bolting projects.
What material is A325 bolt?
medium carbon steel
A325 Heavy Hex Bolt, Galvanized ASTM F3125 Grade A325 heavy hex bolts are high strength structural bolts manufactured from medium carbon steel, carbon boron, or medium carbon alloy steel.
Are titanium bolts stronger than steel?
Applications for Titanium Fasteners The strength and low weight of Titanium make it exceptionally unique, and some grades of Titanium can be anywhere from two to four times stronger than Stainless Steel.
Are A325 bolts slip critical?
“SC” signifies a slip-critical connection where the bolts are not being used in shear, but instead, the tension from the connection resists the shearing force. You simply require the same standard A325 heavy hex structural bolt but will be using them in three different connection types. Slip-critical connection.
Are A325 bolts stainless?
Whereas stainless steels consist of chrome and nickel, A325 bolts have a chemical composition of medium carbon or medium carbon alloy steel that is quenched and tempered. Stainless steel is naturally corrosion-resistant.
Are A325 bolts galvanized?
The two most common types of structural bolt coatings for F3125 Grade A325 bolts are hot-dip galvanized and mechanical galvanized. F3125 Grade A490 bolts can be coated in a zinc/aluminum corrosion protective coating or a zinc-rich base coat and aluminum coating.
What type of bolt is the strongest?
Grade 9 structural bolts, also known as grade 9 hex cap screws, are one the strongest structural bolts that can be used today. While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI.
What material is A325?
ASTM A325 specification covers two types of quenched and tempered steel heavy hex bolts in metric and imperial sizes for structural purpose. The specification includes type 1 & type 3 fastener material intended for structural bolting purpose.
What grade is a structural bolt?
A grade 8 bolt would be one that meets ASTM A490 standards. The A325 bolt strength, or SAE grade 5 bolt strength, is usually used for structural bolting projects.