What sizes do hex bolts come in?
Hex bolts range in size from 1/4″ to 4″ in diameter; 1/4″ to 1 1/2″ sizes are commonly available. Lengths range from 3/8″ to 24″; 1/2″ to 10″ is typical. From 3/8″ to 1″, lengths are in 1/8″ increments.
What is Grade A307 equivalent to?
You will often hear about A307 and Grade 2 bolts as being equivalent. While they are small differences they each are referred to as “low carbon” fasteners. A307 is an ASTM (industrial) spec, while Grade 2 is an SAE J429 Grade 2 (automotive) spec.
Can you weld A307 bolts?
A307 bolts, rods, and studs are not always weldable. For this grade to be weldable it must meet the supplementary requirement S1 of the ASTM A307 specification. This supplement provides assurances of weldability by additional chemical composition restrictions and by a carbon equivalent formula.
Is A307 heavy hex?
A307 Grades Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges.
What is a307b?
ASTM A307 Grade B is grade specification in carbon steel bolting intended for use in flanged joints in piping system particularly with cast iron flanges. This grade covers hex headed bolts, stud bolts, threaded rods or any other bolting having a minimum tensile strength between 60 to 100 ksi.
Is A307 the same as Grade 36?
Although A307 grade C and F1554 grade 36 are virtually identical, there are some subtle yet very important differ- ences. The ASTM F1554 specification was introduced in 1994 and covers anchor rods† designed to anchor structural sup- ports to concrete foundations.
Is A325 stronger than A307?
The high strength bolts are ASTM A325 and ASTM A490. The non-high strength bolt is ASTM A307. The ultimate tensile strengths for A325 and A490 bolts are 120 ksi and 150 ksi respectively.
What grade is A307 bolt?
The A307 Thru Bolt and others in the grade A come with 60ksi minimum tensile strength while grade B can range from 60 to 100ksi and grade C from 58 to 80ksi minimum tensile strength values. The astm a307 stud bolt is used with applications where the stud is needed. The material has carbon, manganese, phosphorus and sulfur in the composition.
Are A307 bolts weldable?
Are a307 bolts weldable? Often times, ASTM A307 bolts (and all thread rod) are manufactured from A36 steel, but not always. A36 material should always be weldable and if A307 rods are manufactured from A36 steel, they will be weldable as well. However, A307 bolt can be made from other steels which, in rare instances, may not be weldable.
What is A307 bolt grade?
Grade 2 bolts ( A307) are a standard hardware grade steel. This is the least expensive and most common. They have a tensile strength of 60,000 PSI. Grade 5 bolts are a heat treated carbon bolt. Hardened to increase its strength, it’s most commonly found in automotive applications.
What does 307A mean on a bolt?
Grade A is a heat treated carbon steel bolting material with minimum tensile requirement of 60 ksi and hardness range from 121 to 241 BHN. ASTM A307 specification covers requirements for chemical composition, mechanical properties, hardness, heat-treatment and recommended nuts-washers for Grade A Bolts.