Symbols
used for British Threads |
BA |
British
association standard thread |
BSC
|
British
standard bicycle thread |
BSF |
British
standard fine thread |
BSP
|
British
standard pipe thread |
BSPT |
British
standard pipe thread, tapered |
BSW |
British
standard Whitworth coarse thread |
CEI |
British
bicycle thread |
WHIT
|
British
Whitworth standard special thread |
| |
|
Symbols
used for British Threads |
Acme-C |
Acme
thread, centralizing |
Acme-G
|
Acme
threads, general purpose |
Stub
Acme |
Stub Acme thread |
AMO
|
American
Standard microscope objective thread |
N.Butt
|
National
Buttress thread |
NC*
|
American
National coarse thread series |
NF* |
American
National fine thread series |
NEF*
|
American
National extra fine-thread series |
8N*
|
American
National 8-thread series |
12N*
|
American
National 12-thread series |
16N*
|
American
National 16-thread series |
NH
|
American National hose coupling and
fire hose coupling threads |
NGO
|
American
National gas outlet threads |
NM
|
National
Miniature threads series |
NS*
|
Special
threads of American National form |
NC
|
American
Standard coarse thread series |
NF1
|
American Standard fine thread series |
NPT
|
American
Standard taper pipe thread |
NIPTF
|
American Standard taper pipe thread
(dryseal) |
NPTR
|
American
Standard taper pipe thread for railing
fittings |
NPS
|
American Standard straight pipe thread
|
NPSC
|
American
Standard straight pipe thread in couplings |
NPSF
|
American
Standard internal straight pipe thread
(dryseal) |
NPSI
|
American Standard intermediate internal
straight pipe thread (dryseal) |
NPSM |
American Standard straight pipe thread
for mechanical joints |
NPSL
|
American Standard straight pipe thread
for Locknuts & Locknut pipe thread |
NPSH |
American Standard straight pipe thread
for hose couplings and nipples |
ANPT
|
Aeronautical
taper pipe thread |
RMS
|
American
Standard surveying instrument mounting
thread |
|
|
