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A307 All Thread Rod, Plated

The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4" through 4" diameter. A307 is an economical low carbon material often manufactured using A36 round bar. Dimensional specifications are governed by ASME B18.31.3. A307 all thread rod is available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance. The all thread rod listed on this page is domestic where specified, melted and manufactured in the USA.

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Governing Standards
Mechanical Properties
Chemical Properties

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ASTM A307	Covers the mechanical and material requirements for inch series fasteners in diameters from 1/4″ through 4″, made of carbon steel having a minimum tensile strength of 60,000 psi.
ASME B18.31.3	Covers the general and dimensional data for inch series threaded rods.
ASME B1.1 UNC & UNF Class 2A	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Low Carbon Steel			Per ASTM A307-2014
Diameter	Bolt or Stud Length	Tensile Strength	Elongation	Core Hardness (1)
Diameter	Bolt or Stud Length	Min psi	Min %	Rockwell
1/4 thru 4"	Less than 3 X dia (2)	60,000	18	B69 to B100
1/4 thru 4"	3 X dia and longer	60,000	18	B100

Per ASTM A307-2014
Carbon	Manganese	Phosphorus	Sulfur
% by heat analysis	% by heat analysis	% by heat analysis	% by heat analysis
0.29	1.20	0.04	0.15

A307 All Thread Rod, Plated

Technical Data

Governing Standards

Governing StandardsGrade A307A

Mechanical Properties

Mechanical PropertiesGrade A307A

Chemical Properties

Chemical PropertiesGrade A307A