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3/4-10 X 11 1/2 A320 L7 Stud Bolt

Selected A320 Grade L7 Stud Bolt1 1/8-8 X 11 A320 L7 Stud Bolt
A320 Grade L7 Stud Bolt1 1/8-8 X 11 A320 L7 Stud Bolt

Product Specification

Diameter
3/4
Length
11 1/2
Grade
Grade L7
With Nut?
Bolt Only
Material
Steel
Finish
Black
Country of Origin
Unrestricted Origin
Weight
1.183542

Stud Flange Charts

FLANGE NOMINAL PIPE DIAMETER
CLASS BOLTING 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4
150# Number 4 4 4 4 4 4 4 4 8 8
Diameter 1/2 1/2 1/2 1/2 1/2 5/8 5/8 5/8 5/8 5/8
Stud Bolt Length 2-1/4 2-1/2 2-1/2 2-3/4 2-3/4 3-1/4 3-1/2 3-1/2 3-1/2 3-1/2
Mach Bolt Length 2 2 2-1/4 2-1/4 2-1/2 2-3/4 3 3 3 3
300# Number 4 4 4 4 4 8 8 8 8 8
Diameter 1/2 5/8 5/8 5/8 3/4 5/8 3/4 3/4 3/4 3/4
Stud Bolt Length 2-1/2 3 3 3-1/4 3-1/2 3-1/2 4 4-1/4 4-1/4 4-1/2
Mach Bolt Length 2-1/4 2-1/2 2-1/2 2-3/4 3 3 3-1/4 3-1/2 3-3/4 3-3/4
600# Number 4 4 4 4 4 8 8 8 8 8
Diameter 1/2 5/8 5/8 5/8 3/4 5/8 3/4 3/4 7/8 7/8
Stud Bolt Length 3 3-1/2 3-1/2 3-3/4 4-1/4 4-1/4 4-3/4 5 5-1/2 5-3/4
900# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 7/8 1 7/8 1 7/8 - 1-1/8
Stud Bolt Length 4-1/4 4-1/2 5 5 5-1/2 5-3/4 6-1/4 5-3/4 - 6-3/4
1500# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 7/8 1 7/8 1 1-1/8 - 1-1/4
Stud Bolt Length 4-1/4 4-1/2 5 5 5-1/2 5-3/4 6-1/4 7 - 7-3/4
2500# Number 4 4 4 4 4 8 8 8 - 8
Diameter 3/4 3/4 7/8 1 1-1/8 1 1-1/8 1-1/4 - 1-1/2
Stud Bolt Length 4-3/4 5 5-1/2 6 6-3/4 7 7-3/4 8-3/4 - 10
FLANGE NOMINAL PIPE DIAMETER
CLASS BOLTING 5 6 8 10 12 14 16 18 20 24
150# Number 8 8 8 12 12 12 16 16 20 20
Diameter 3/4 3/4 3/4 7/8 7/8 1 1 1-1/8 1-1/8 1-1/4
Stud Bolt Length 3-3/4 4 4-1/4 4-1/2 4-3/4 5-1/4 5-1/4 5-3/4 6-1/4 6-3/4
Mach Bolt Length 3-1/4 3-1/4 3-1/2 4 4 4-1/2 4-1/2 5 5-1/2 6
300# Number 8 12 12 16 16 20 20 24 24 24
Diameter 3/4 3/4 7/8 1 1-1/8 1-1/8 1-1/4 1-1/4 1-1/4 1-1/2
Stud Bolt Length 4-3/4 4-3/4 5-1/2 6-1/4 6-3/4 7 7-1/2 7-3/4 8 9
Mach Bolt Length 4-1/4 4-1/4 4-3/4 5-1/2 5-3/4 6-1/4 6-1/2 6-3/4 7-1/4 8
600# Number 8 12 12 16 20 20 20 20 24 24
Diameter 1 1 1-1/8 1-1/4 1-1/4 1-3/8 1-1/2 1-5/8 1-5/8 1-7/8
Stud Bolt Length 6-1/2 6-3/4 7-1/2 8-1/2 8-3/4 9-1/4 10 10-3/4 11-1/4 13
900# Number 8 12 12 16 20 20 20 20 20 20
Diameter 1-1/4 1-1/8 1-3/8 1-3/8 1-3/8 1-1/2 1-5/8 1-7/8 2 2-1/2
Stud Bolt Length 7-1/2 7-1/2 8-3/4 9-1/4 10 10-3/4 11-1/4 12-3/4 13-3/4 17-1/4
1500# Number 8 12 12 12 16 16 16 16 16 16
Diameter 1-1/2 1-3/8 1-5/8 1-7/8 2 2-1/4 2-1/2 2-3/4 3 3-1/2
Stud Bolt Length 9-3/4 10-1/4 11-1/2 13-1/4 14-3/4 16 17-1/2 19-1/2 21-1/4 24-1/4
2500# Number 8 8 12 12 12 - - - - -
Diameter 1-3/4 2 2 2-1/2 2-3/4 - - - - -
Stud Bolt Length 11-3/4 13-1/2 15 19-1/4 21-1/4 - - - - -
  1. All dimensions are in inches.

Governing Standards

ASTM A320 Covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service.
ASME B18.31.2 Covers the complete dimensional and general data for continuous thread, flange studs (stud bolts), and double-end inch-dimensioned studs.
ASME B1.1 UNC & UNF Class 2A Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Grade L7 Head Marking
Grade L7 Material Marking

Mechanical Properties

Alloy Steel, Quenched & Tempered Per ASTM A320/A320M-15a
Diameter Tempering
Temperature		 Tensile
Strength		 Yield Strength,
0.2% offset		 Elongation
in 4D		 Reduction
of Area		 Hardness
Min Min ksi Min ksi Min % Min % Max
2 1/2" and under 1100F 125 105 16 50 321 HBW or 35 HRC

Chemical Properties

Per ASTM A320/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