ASTM A193 B7 and A320 L7 Threaded Rod

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ASTM A193 B7 Threaded Rod
A320 L7 Threaded Rod
ASTM A193 L7 Threaded Studs


ASTM A193 B7

Stock Lengths: 6 ft. and 12 ft.

NATIONAL COARSE (USS) & UN-8
Size Wt Per 100' Pieces Per Tube
1/4-20 12.2 50/10*
5/16-18 19.9 35/10*
3/8-16 29.3 25/10*
7/16-14 40.2 17/10*
1/2-13 53.3 12
9/16-12 67.8 10
5/8-11 84.3 8
3/4-10 123.5 5
7/8-9 170.5 4
1-8 223.1 2
1 1/8-7 281.1 1
1 1/8-8 303.4 1
1 1/4-7 353.7 1
1 1/4-8 361.8 1
1 3/8-6 423.2 1
1 3/8-8 462.4 1
1 1/2-6 512.2 1
1 1/2-8 533.8 1
1 5/8-8 631.6 1
1 3/4-5 694.7 1
1 3/4-8 738.4 1
1 7/8-8 853.6 1
2-4 1/2 911.8 1
2-8 976.1 1
2 1/4-8 1250.0 1
2 1/2-4 1448.0 1
2 1/2-8 1550.0 1
2 3/4-8 1889.0 Bulk
3-8 2260.0 Bulk
3 1/4-8 2671.0 Bulk
3 1/2-8 3111.0 Bulk
3 3/4-8 3754.8 Bulk
4-8 4272.1 Bulk

*available in 10 piece tube quantities

Zinc & Yellow Zinc available upon Request

Tubes labeled with Size, Lot & Heat numbers. Chemical & Physical Test Reports available.

NATIONAL FINE (SAE)
Size Wt Per 100' Pieces Per Tube
1/4-28 13.4 50/10*
5/16-24 21.4 35/10*
3/8-24 31.8 25/10*
7/16-20 43.1 17/10*
1/2-20 57.5 12
5/8-18 91.4 8
3/4-16 132.7 5
7/8-14 181.7 4
1-14 240.5 2
1-1/8-12 303.4 1
1-1/4-12 378.7 1
1-3/8-12 424.3 1
1-1/2-12 554.4 1

*available in 10 piece tube quantities


ASTM A320 L7 Threaded Rod

Alloy Steel Bolting Material for Low-Temperature Service

Stock Lengths: 12 ft.

5/8" thru 2 1/2" - Minimum Tensile Strength 125,000

Charpy Impact Tested

NATIONAL COARSE (USS) & UN-8
Size Wt Per 100' Pieces Per Tube
5/8-11 84.3 8
3/4-10 123.5 5
7/8-9 170.5 4
1-8 223.1 2
1 1/8-8 303.4 1
1 1/4-8 361.8 1
1 3/8-8 462.4 1
1 1/2-8 533.8 1
1 5/8-8 631.6 1
1 3/4-8 738.4 1
1 7/8-8 853.6 1
2-8 976.1 1
2 1/4-8 1250.0 1
2 1/2-8 1550.0 1
2 3/4-8 1889.0 Bulk
3-8 2260.0 Bulk


ASTM A320 L7 Threaded Studs

Vulcan Threaded doesn't just make threaded rod. Vulcan Threaded Products is a Domestic manufacturer of ASTM A193 Gr.B7 threaded studs in a wide variety of sizes. Whether Fully Threaded or Double Ended, 2 inches long or 240* inches long, Vulcan can fill all of your B7 threaded stud requirements.

ASTM Threaded Studs ASTM Threaded Studs
A193 Gr.B7
Chemical Requirements
Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum
0.37-0.49 0.65-1.10 0.035 max 0.040 max 0.15-0.35 0.75-1.20 0.15-0.25

Mechanical Requirements
2 1/2" diameter and under
Tensile Strength, min. Yield Strength, min. 0.2% offset Elongation in 4D, min. % Reduction of Area, min.% Hardness, max
125,000 105,000 16 50 321 HB

Over 2 1/2" to 4" diameter
Tensile Strength, min. Yield Strength, min. 0.2% offset Elongation in 4D, min. % Reduction of Area, min.% Hardness, max
115,000 95,000 16 50 321 HB