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Home
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Threaded Rod
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A320 L7 All Thread Rod
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1 1/4-8 X 12 FT A320 L7 ALL THREAD ROD
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1 1/4-8 X 12 FT A320 L7 ALL THREAD ROD
Item #:
RGL71250000
1 1/4-8 X 12 FT A320 L7 ALL THREAD ROD
$16.68847/FT
Quantity
Price
Quantity
Price
1
$16.68847/ FT
40
$15.94595/ FT
140
$14.15339/ FT
600
$10.96556/ FT
Qty
In Stock
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Technical Data
Product Specification
Governing Standards
Mechanical Properties
Chemical Properties
Product Specification
Diameter
1 1/4
Length
12 FT
Grades
Grade L7
With Nut?
Bolt Only
Material
Steel
Finish
Black
Origin
Unrestricted Origin
Weight
0.3015,
Governing Standards
Governing Standards
Grade L7
ASTM A320
Covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service.
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.
Mechanical Properties
Mechanical Properties
Grade L7
AISI 4140/4142 Steel, Quenched & Tempered
Per ASTM A320/A320M-15a
Diameter
Tempering
Temperature
Tensile
Strength
Yield Strength,
0.2% offset
Elongation in
2 in. or 50 mm
Reduction
of Area
Hardness
Min
Min ksi
Min ksi
Min %
Min %
Max
2 1/2" and under (1)
1100F
125
105
16
50
321 HBW or 35 HRC
1. These upper diameter limits were established on the basis that these were the largest sizes commonly available that consistently met specification property limits. They are not intended as absolute limits beyond which bolting materials could no longer be certified to the specification.
Chemical Properties
Chemical Properties
Grade L7
Per ASTM 320/A320M-15a
Grade
Carbon
Manganese
Phosphorus
Sulfur
Silicon
Chromium
Molybdenum
% by weight
% by weight
% by weight
% by weight
% by weight
% by weight
% by weight
L7
0.38-0.48
0.75-1.00
0.035 max
0.040 max
0.15-0.35
0.80-1.10
0.15-0.25