#0 × 80 TPI External (Bolt) Thread Specifications
ASME Unified National Fine (UNF) per ASME B1.1 — bolt/screw dimensions
Applications
Precision electronics
Eyeglass hinges
Delicate instruments
Technical Specifications
Parameter
Notation
Value
Threads Per Inch
n
80.0 TPI
Pitch
P
0.0125 in
Major Diameter
d
0.0595 in
Pitch Diameter
d2
0.0514 in
UNR Minor Dia (Max)
d1_max
0.0446 in
Allowance
es
0.0005 in
Tolerance Class
Class
2A
Thread Height
H
0.0108 in
Thread Depth
h3
0.0077 in
Crest Width
f / (P/8)
0.0016 in
Root Width
r / (P/4)
0.0031 in
Tap Drill
Drill
0.0475 in
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