符号螺纹种类规范牙型角
M公制粗牙ISO26160°
S细小螺丝ISOR150160°
UNC统一牙粗牙ISO26360°
UNF统一牙细牙ISO26360°
UNEF统一牙特细牙ISO26360°
UN统一牙固定牙ISO26360°
UNS统一牙特殊牙-----60°
NC美制牙粗牙ANSIB1.160°
NF美制牙细牙ANSIB1.160°
NEF美制牙特细牙ANSIB1.160°
N美制牙固定牙ANSIB1.160°
NS美制牙特殊牙ANSIB1.160°
BSW英制牙粗牙BS8455°
BSF英制牙细牙BS8455°
BC自行车牙JISB022560°
SM针车用JISB022660°
CTV自行行车用风嘴JISD942260°
TV汽车用风嘴JIDD420760°
BSC英制自行车BS81160°
BA英制小螺丝BS9330°47°
Tr公制爱克母牙ISO290230°
TW爱克姆牙JISB022229°
ACME爱克姆牙ANSIB1.529°
STUB-ACME浅牙爱克姆ANSIB1.829°
C平行管用螺纹ISO228/155°
BSPF英制平行管螺纹BS277955°
PF英制平行管螺纹ISB020255°
R管用推拔管用ISO7/155°1/16
Rc管用推拔内螺纹ISO7/155°1/16
Rp管用平行内螺纹ISO7/155°
PT推拔管用JISB020355°1/16
PS平行内螺纹JISB020355°
BSP英制管牙BS21.277955°
NPT美制一般推拔管用ANSIB2.160°1/16
NPTR美制栏杆接头用ANSIB2.160°1/16
NPS美制一般平行管用ANSIB2.160°
NPSM美制平行管用装配器用ANSIB2.160°
NPSL美制锁紧螺帽用ANSIB2.160°
NPSH美制水管用ANSIB2.160°
NPSC美制管接头用ANSIB2.160°
NH美制消防水管用ANSIB2.160°
NPSF美制干封管用平行内螺纹ANSIB2.160°
NPTI美制干封管用平行ANSIB2.160°
NPTF美制干封管用推拔ANSIB2.160°1/16
NGT美制瓦斯用推拔ANSIB57.160°1/16
NGS美制瓦斯用平行ANSIB57.160°
NGO美制瓦斯用出口ANSIB57.160°
SGT美制瓦斯用特殊ANSIB57.160°1/8
E电灯泡用JISC7709圆
V瓦斯桶凡而用JISB8245/655°3/26
C薄铜电线管用JISB020480°
常用规格（公制）
M1.2*0.25M2.5*0.45M6*0.75M10*0.75
M1.4*0.3M2.6*0.45M6*1M10*1
M1.6*0.35M3*0.5M7*0.75M10*1.25
M1.7*0.25M3*0.6M7*1M10*1.5
M1.7*0.35M3.5*0.6M8*0.75M11*1
M1.8*0.35M4*0.5M8*1M11*1.5
M2*0.4M4*0.7M8*1.2512*1
M2.2*0.45M5*0.5M9*1M12*1.25
M2.3*0.45M5*0.8M9*1.25M12*1.5
常用规格（美制）
0-80UNF5-40UNC10-32UNF5/16〃-32UNEF
1-64UNC5-44UNV12-24UNC3/8〃-16UNC
1-72UNF6-32UNC12-28UNF3/8〃-24UNF
2-56UNC6-40UNF12-32UNEF3/8〃-32UNEF
2-64UNF5/32〃-32UNC1/4〃-20UNC7/16〃-14UNC
3-48UNC8-32UNC1/4〃-28UNF7/16〃-20UNF
3-56UNF8-36UNF1/4〃-32UNEF7/16〃-28UNEF
4-40UNC3/16〃-24UNC5/16〃-18UNC1/2〃-13UNC
4-48UNF10-24UNC5/16〃-24UNF1/2〃-20UNF
常用规格（英制）
1/8〃-401/2〃-121〃-82〃-4.5
5/32〃-329/16〃-121-1/8〃-72-1/8〃-4
3/16〃-245/8〃-111-1/4〃-72-1/4〃-4
7/32〃-2411/16〃-111-3/8〃-62-1/2〃-4
1/4〃-203/4〃-161-1/2〃-62-3/4〃-4
5/16〃-1813/16〃-101-5/8〃-53-1/4〃-4
3/8〃-167/8〃-91-1/4〃-53-1/2〃-4
7/16〃-1415/16〃-91-7/8〃-4.53-3/4〃-4
4〃-4
