15/16" × 20 TPI External (Bolt) Thread Specifications
ASME Unified National Fine (UNF) per ASME B1.1 — bolt/screw dimensions
Applications
General purpose
Industrial (US)
Technical Specifications
Parameter
Notation
Value
Threads Per Inch
n
20.0 TPI
Pitch
P
0.0500 in
Major Diameter
d
0.9361 in
Pitch Diameter
d2
0.9036 in
UNR Minor Dia (Max)
d1_max
0.8766 in
Allowance
es
0.0014 in
Tolerance Class
Class
2A
Thread Height
H
0.0433 in
Thread Depth
h3
0.0307 in
Crest Width
f / (P/8)
0.0063 in
Root Width
r / (P/4)
0.0125 in
Tap Drill
Drill
0.8875 in
Related Thread Sizes
15/16" × 20 TPI (UNEF)
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