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  1. Steel A307 Hot Dip Galvanized Carriage Bolt & Nut with Washer
  2. Steel A307 Hot Dip Galvanized Carriage Bolt & Nut with Washer
  3. Steel A307 Hot Dip Galvanized Carriage Bolt & Nut with Washer
  4. Steel A307 Hot Dip Galvanized Carriage Bolt & Nut with Washer

Steel A307 Hot Dip Galvanized Carriage Bolt & Nut with Washer

ASTM A307The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of the mill bolt specification often manufactured using

  1. Detailed information

ASTM A307

The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of

 the mill bolt specification often manufactured using A36 round bar. There are three grades A, B, and C* which denote tensile strength, 

configuration, and application. Refer to the Mechanical Properties Chart for the subtle strength differences within each grade.

A307 Grades

AASTM A307 Grade AHeaded bolts, threaded rods and bent bolts intended for general applications.
BASTM A307 Grade BHeavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges.
C*ASTM A307 Grade CNonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will be painted green for identification purposes. Permanent marking is a supplemental requirement. *As of August 2007, grade C has been replaced by specification F1554 grade 36We will continue to supply grade C, if required by the project.

A307 Mechanical Properties

GradeTensile, ksiYield, min, ksiElong %, min
A60 min--18
B60 - 100--18
C*58 - 803623

A307 Chemical Properties

ElementGrade AGrade B
Carbon, max0.29%0.29%
Manganese, max1.20%1.20%
Phosphorus, max0.04%0.04%
Sulfur, max0.15%0.05%

A307 Recommended Hardware

NutsWashers
A307 Grades A & C*A307 Grade B
1/4 - 1-1/21-5/8 - 41/4 - 4
A563A HexA563A Heavy HexA563A Heavy HexF844