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ASME B18.31.2-UNF Online Drawing Generator & Dimensions

Continuous thread studs, fine pitch

Use this ASME B18.31.2-UNF online drawing generator to review the Continuous thread studs, fine pitch geometry and configure diameter, pitch, overall length and thread engagement. Export a technical PDF drawing for sourcing, engineering review or custom manufacturing. Searches for ASME B18.31.2-UNF, ASMEB18.31.2-UNF, ASME B18.31.2-UNF drawing and ASME B18.31.2-UNF dimensions refer to this page.

Standards
  • ASME B18.31.2-UNF
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Use this ASME B18.31.2-UNF drawing generator to configure dimensions, review the technical drawing and export a custom drawing for manufacturing. Whether the specification is written as ASME B18.31.2-UNF or ASMEB18.31.2-UNF, this online drawing tool covers the same Continuous thread studs, fine pitch standard reference.

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Select the available size parameters, review the dimensional values and prepare a drawing-based specification. Material, grade, finish, tolerances, inspection and documentation requirements can be added to the manufacturing inquiry.

ASME B18.31.2-UNF

Continuous thread studs, fine pitch

Technical Data Sheet

ETERNAL FASTENER
Wuxi, Jiangsu, China
Email: [email protected]
Web: www.fasteneref.com
WhatsApp: +8615951571207
ASME B18.31.2-UNF
ASME B18.31.2-UNF Continuous thread studs, fine pitch
Product code
Product specification
1/2"-20X3"
Product standard
ASME B18.31.2-UNF
Material / grade
Steel 45
Unit
inch
Mechanical properties
45H
ASME B18.31.2-UNF technical drawing
Dimension
Parameter (inch)
Dimension
Parameter (inch)
d
1/2
P
20
L
2.92~3.08
c
0.1

max = maximum; min = minimum

Material
Material type
Steel
Grade
45
Thread
Tolerance
Standard
Mechanical properties
Property class
45H
Standard
Tolerance
Product grade
Standard
Surface defects
Surface Treatment
Inspection & packaging
Ref. wt / 1000 pcs (kg)
Document No.: EF-ASME-B18-31-2-UNFRevision: v1Issue date: 2026-11-14Page: 1 / 2

Technical Data Sheet

Dimensions & size table

Unit: inch

DimensionPc/max
1120.167
1/4280.071
1/2200.1
1-1/8120.167
1-1/4120.167
1-3/8120.167
1-1/2120.167
3/8240.083
3/4160.125
5/16240.083
5/8180.111
7/16200.1
7/8140.143
9/16180.111
Document No.: EF-ASME-B18-31-2-UNFRevision: v1Issue date: 2026-11-14Page: 2 / 2

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