5/16" × 24 TPI External (Bolt) Thread Specifications
ASME Unified National Fine (UNF) per ASME B1.1 — bolt/screw dimensions
Applications
Automotive batteries
Garden equipment
Light structural work
Technical Specifications
Parameter
Notation
Value
Threads Per Inch
n
24.0 TPI
Pitch
P
0.0417 in
Major Diameter
d
0.3114 in
Pitch Diameter
d2
0.2843 in
UNR Minor Dia (Max)
d1_max
0.2618 in
Allowance
es
0.0011 in
Tolerance Class
Class
2A
Thread Height
H
0.0361 in
Thread Depth
h3
0.0256 in
Crest Width
f / (P/8)
0.0052 in
Root Width
r / (P/4)
0.0104 in
Tap Drill
Drill
0.2708 in
Related Thread Sizes
5/16" × 18 TPI (UNC)
5/16" × 32 TPI (UNEF)
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