Partial and full profile inserts for internal and external threads
Threading Inserts
Partial Profile 60°
D is expressed in inches. Pitch, L, X and Y are expressed in millimetres. TPI means threads per inch.
Standard Inserts
External
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
1/4
0.5–1.5
48–16
11ER A60
11EL A60
11
0.8
0.9
3/8
0.5–1.5
48–16
16ER A60
16EL A60
16
0.8
0.9
3/8
0.5–3.0
48–8
16ER AG60
16EL AG60
16
1.2
1.7
3/8
1.75–3.0
14–8
16ER G60
16EL G60
16
1.2
1.7
1/2
3.5–5.0
7–5
22ER N60
22EL N60
22
1.7
2.5
5/8
5.5–6.0
4.5–4
27ER Q60
27EL Q60
27
2.1
3.1
Internal
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
1/4
0.5–1.5
48–16
11IR A60
11IL A60
11
0.8
0.9
3/8
0.5–1.5
48–16
16IR A60
16IL A60
16
0.8
0.9
3/8
0.5–3.0
48–8
16IR AG60
16IL AG60
16
1.2
1.7
3/8
1.75–3.0
14–8
16IR G60
16IL G60
16
1.2
1.7
1/2
3.5–5.0
7–5
22IR N60
22IL N60
22
1.7
2.5
5/8
5.5–6.0
4.5–4
27IR Q60
27IL Q60
27
1.8
2.7
Pressed Inserts
External
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
3/8
0.5–1.5
48–16
16ER A60
16EL A60
16
0.8
0.9
3/8
0.5–3.0
48–8
16ER AG60
16EL AG60
16
1.2
1.7
3/8
1.75–3.0
14–8
16ER G60
16EL G60
16
1.2
1.7
Internal
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
3/8
0.5–1.5
48–16
16IR A60
16IL A60
16
0.8
0.9
3/8
0.5–3.0
48–8
16IR AG60
16IL AG60
16
1.2
1.7
3/8
1.75–3.0
14–8
16IR G60
16IL G60
16
1.2
1.7
Partial Profile 55°
Standard Inserts
External
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
1/4
0.5-1.5
48-16
11ER A55
11EL A55
11
0.8
0.9
3/8
0.5-1.5
48-16
16ER A55
16EL A55
16
0.8
0.9
3/8
0.5-3.0
48-8
16ER AG55
16EL AG55
16
1.2
1.7
3/8
1.75-3.0
14-8
16ER G55
16EL G55
16
1.2
1.7
1/2
3.5-5.0
7-5
22ER N55
22EL N55
22
1.7
2.5
5/8
5.5-6.0
4.5-4
27ER Q55
27EL Q55
27
2.0
2.9
Internal
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
1/4
0.5-1.5
48-16
11IR A55
11IL A55
11
0.8
0.9
3/8
0.5-1.5
48-16
16IR A55
16IL A55
16
0.8
0.9
3/8
0.5-3.0
48-8
16IR AG55
16IL AG55
16
1.2
1.7
3/8
1.75-3.0
14-8
16IR G55
16IL G55
16
1.2
1.7
1/2
3.5-5.0
7-5
22IR N55
22IL N55
22
1.7
2.5
5/8
5.5-6.0
4.5-4
27IR Q55
27IL Q55
27
2.0
2.9
Pressed Inserts
External
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
3/8
0.5-1.5
48-16
16ER A55
16EL A55
16
0.8
0.9
3/8
0.5-3.0
48-8
16ER AG55
16EL AG55
16
1.2
1.7
3/8
1.75-3.0
14-8
16ER G55
16EL G55
16
1.2
1.7
Internal
D (in)
Pitch (mm)
TPI
Right Hand
Left Hand
L
X
Y
3/8
0.5-1.5
48-16
16IR A55
16IL A55
16
0.8
0.9
3/8
0.5-3.0
48-8
16IR AG55
16IL AG55
16
1.2
1.7
3/8
1.75-3.0
14-8
16IR G55
16IL G55
16
1.2
1.7
ISO Metric
ISO metric full-profile threading inserts. D is expressed in inches. Pitch, L, X and Y are expressed in millimetres.
Standard Inserts
External
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
1/4
0.50
11ER0.50 ISO
11EL0.50 ISO
11
0.6
0.6
1/4
0.75
11ER0.75 ISO
11EL0.75 ISO
11
0.6
0.6
1/4
1.00
11ER1.00 ISO
11EL1.00 ISO
11
0.7
0.7
1/4
1.25
11ER1.25 ISO
11EL1.25 ISO
11
0.8
0.9
1/4
1.50
11ER1.50 ISO
11EL1.50 ISO
11
0.8
1.0
1/4
1.75
11ER1.75 ISO
11EL1.75 ISO
11
0.8
1.1
3/8
0.50
16ER0.50 ISO
16EL0.50 ISO
16
0.6
0.6
3/8
0.75
16ER0.75 ISO
16EL0.75 ISO
16
0.6
0.7
3/8
1.00
16ER1.00 ISO
16EL1.00 ISO
16
0.7
0.8
3/8
1.25
16ER1.25 ISO
16EL1.25 ISO
16
0.8
0.9
3/8
1.50
16ER1.50 ISO
16EL1.50 ISO
16
0.8
1.0
3/8
1.75
16ER1.75 ISO
16EL1.75 ISO
16
0.9
1.2
3/8
2.00
16ER2.00 ISO
16EL2.00 ISO
16
1.0
1.3
3/8
2.50
16ER2.50 ISO
16EL2.50 ISO
16
1.1
1.5
3/8
3.00
16ER3.00 ISO
16EL3.00 ISO
16
1.2
1.6
1/2
3.50
22ER3.50 ISO
22EL3.50 ISO
22
1.6
2.3
1/2
4.00
22ER4.00 ISO
22EL4.00 ISO
22
1.6
2.3
1/2
4.50
22ER4.50 ISO
22EL4.50 ISO
22
1.7
2.4
1/2
5.00
22ER5.00 ISO
22EL5.00 ISO
22
1.7
2.5
5/8
5.50
27ER5.50 ISO
27EL5.50 ISO
27
1.9
2.7
5/8
6.00
27ER6.00 ISO
27EL6.00 ISO
27
2.0
2.9
Internal
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
1/4
0.50
11IR0.50 ISO
11IL0.50 ISO
11
0.6
0.6
1/4
0.75
11IR0.75 ISO
11IL0.75 ISO
11
0.6
0.6
1/4
1.00
11IR1.00 ISO
11IL1.00 ISO
11
0.6
0.7
1/4
1.25
11IR1.25 ISO
11IL1.25 ISO
11
0.8
0.9
1/4
1.50
11IR1.50 ISO
11IL1.50 ISO
11
0.8
1.0
1/4
1.75
11IR1.75 ISO
11IL1.75 ISO
11
0.9
1.1
1/4
2.00
11IR2.00 ISO
11IL2.00 ISO
11
1.0
1.3
3/8
0.50
16IR0.50 ISO
16IL0.50 ISO
16
0.6
0.6
3/8
0.75
16IR0.75 ISO
16IL0.75 ISO
16
0.6
0.6
3/8
1.00
16IR1.00 ISO
16IL1.00 ISO
16
0.6
0.7
3/8
1.25
16IR1.25 ISO
16IL1.25 ISO
16
0.8
0.9
3/8
1.50
16IR1.50 ISO
16IL1.50 ISO
16
0.8
1.0
3/8
1.75
16IR1.75 ISO
16IL1.75 ISO
16
0.9
1.2
3/8
2.00
16IR2.00 ISO
16IL2.00 ISO
16
1.0
1.3
3/8
2.50
16IR2.50 ISO
16IL2.50 ISO
16
1.1
1.5
3/8
3.00
16IR3.00 ISO
16IL3.00 ISO
16
1.1
1.5
1/2
3.50
22IR3.50 ISO
22IL3.50 ISO
22
1.6
2.3
1/2
4.00
22IR4.00 ISO
22IL4.00 ISO
22
1.6
2.3
1/2
4.50
22IR4.50 ISO
22IL4.50 ISO
22
1.6
2.4
1/2
5.00
22IR5.00 ISO
22IL5.00 ISO
22
1.6
2.5
5/8
5.50
27IR5.50 ISO
27IL5.50 ISO
27
1.9
2.7
5/8
6.00
27IR6.00 ISO
27IL6.00 ISO
27
2.0
2.9
Pressed Inserts
External
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
3/8
0.50
16ER0.50 ISO
16EL0.50 ISO
16
0.6
0.6
3/8
0.75
16ER0.75 ISO
16EL0.75 ISO
16
0.6
0.7
3/8
1.00
16ER1.00 ISO
16EL1.00 ISO
16
0.7
0.8
3/8
1.25
16ER1.25 ISO
16EL1.25 ISO
16
0.8
0.9
3/8
1.50
16ER1.50 ISO
16EL1.50 ISO
16
0.8
1.0
3/8
1.75
16ER1.75 ISO
16EL1.75 ISO
16
0.9
1.2
3/8
2.00
16ER2.00 ISO
16EL2.00 ISO
16
1.0
1.3
3/8
2.50
16ER2.50 ISO
16EL2.50 ISO
16
1.1
1.5
3/8
3.00
16ER3.00 ISO
16EL3.00 ISO
16
1.2
1.6
Internal
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
3/8
0.50
16IR0.50 ISO
16IL0.50 ISO
16
0.6
0.6
3/8
0.75
16IR0.75 ISO
16IL0.75 ISO
16
0.6
0.6
3/8
1.00
16IR1.00 ISO
16IL1.00 ISO
16
0.6
0.7
3/8
1.25
16IR1.25 ISO
16IL1.25 ISO
16
0.8
0.9
3/8
1.50
16IR1.50 ISO
16IL1.50 ISO
16
0.8
1.0
3/8
1.75
16IR1.75 ISO
16IL1.75 ISO
16
0.9
1.2
3/8
2.00
16IR2.00 ISO
16IL2.00 ISO
16
1.0
1.3
3/8
2.50
16IR2.50 ISO
16IL2.50 ISO
16
1.1
1.5
3/8
3.00
16IR3.00 ISO
16IL3.00 ISO
16
1.1
1.5
American UN
60° Unified full-profile threading inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
32
11ER32 UN
11EL32 UN
11
0.6
0.6
1/4
28
11ER28 UN
11EL28 UN
11
0.6
0.7
1/4
24
11ER24 UN
11EL24 UN
11
0.7
0.8
1/4
20
11ER20 UN
11EL20 UN
11
0.8
0.9
1/4
18
11ER18 UN
11EL18 UN
11
0.8
1.0
1/4
16
11ER16 UN
11EL16 UN
11
0.9
1.1
3/8
32
16ER32 UN
16EL32 UN
16
0.6
0.6
3/8
28
16ER28 UN
16EL28 UN
16
0.6
0.7
3/8
24
16ER24 UN
16EL24 UN
16
0.7
0.8
3/8
20
16ER20 UN
16EL20 UN
16
0.8
0.9
3/8
18
16ER18 UN
16EL18 UN
16
0.8
1.0
3/8
16
16ER16 UN
16EL16 UN
16
0.9
1.1
3/8
14
16ER14 UN
16EL14 UN
16
1.0
1.2
3/8
13
16ER13 UN
16EL13 UN
16
1.1
1.3
3/8
12
16ER12 UN
16EL12 UN
16
1.1
1.4
3/8
11.5
16ER11.5 UN
16EL11.5 UN
16
1.1
1.4
3/8
11
16ER11 UN
16EL11 UN
16
1.1
1.5
3/8
10
16ER10 UN
16EL10 UN
16
1.1
1.5
3/8
9
16ER9 UN
16EL9 UN
16
1.2
1.7
3/8
8
16ER8 UN
16EL8 UN
16
1.2
2.0
1/2
7
22ER7 UN
22EL7 UN
22
1.6
2.3
1/2
6
22ER6 UN
22EL6 UN
22
1.6
2.3
1/2
5
22ER5 UN
22EL5 UN
22
1.7
2.5
5/8
4.5
27ER4.5 UN
27EL4.5 UN
27
1.9
2.7
5/8
4
27ER4 UN
27EL4 UN
27
2.1
3.0
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
32
11IR32 UN
11IL32 UN
11
0.6
0.6
1/4
28
11IR28 UN
11IL28 UN
11
0.6
0.7
1/4
24
11IR24 UN
11IL24 UN
11
0.7
0.8
1/4
20
11IR20 UN
11IL20 UN
11
0.8
0.9
1/4
18
11IR18 UN
11IL18 UN
11
0.8
1.0
1/4
16
11IR16 UN
11IL16 UN
11
0.9
1.1
3/8
32
16IR32 UN
16IL32 UN
16
0.6
0.6
3/8
28
16IR28 UN
16IL28 UN
16
0.6
0.7
3/8
24
16IR24 UN
16IL24 UN
16
0.7
0.8
3/8
20
16IR20 UN
16IL20 UN
16
0.8
0.9
3/8
18
16IR18 UN
16IL18 UN
16
0.8
1.0
3/8
16
16IR16 UN
16IL16 UN
16
0.9
1.1
3/8
14
16IR14 UN
16IL14 UN
16
1.0
1.2
3/8
13
16IR13 UN
16IL13 UN
16
1.0
1.3
3/8
12
16IR12 UN
16IL12 UN
16
1.1
1.4
3/8
11
16IR11 UN
16IL11 UN
16
1.1
1.5
3/8
10
16IR10 UN
16IL10 UN
16
1.1
1.5
3/8
9
16IR9 UN
16IL9 UN
16
1.2
1.7
3/8
8
16IR8 UN
16IL8 UN
16
1.2
2.0
1/2
7
22IR7 UN
22IL7 UN
22
1.6
2.3
1/2
6
22IR6 UN
22IL6 UN
22
1.6
2.3
1/2
5
22IR5 UN
22IL5 UN
22
1.7
2.5
5/8
4.5
27IR4.5 UN
27IL4.5 UN
27
1.9
2.7
5/8
4
27IR4 UN
27IL4 UN
27
2.1
3.0
UNJ Aerospace
UNJ full-profile threading inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
28
11ER28 UNJ
11EL28 UNJ
11
0.7
0.7
1/4
24
11ER24 UNJ
11EL24 UNJ
11
0.7
0.8
1/4
20
11ER20 UNJ
11EL20 UNJ
11
0.8
0.9
1/4
18
11ER18 UNJ
11EL18 UNJ
11
0.8
1.0
1/4
16
11ER16 UNJ
11EL16 UNJ
11
0.9
1.1
1/4
14
11ER14 UNJ
11EL14 UNJ
11
1.0
1.2
3/8
28
16ER28 UNJ
16EL28 UNJ
16
0.7
0.7
3/8
24
16ER24 UNJ
16EL24 UNJ
16
0.7
0.8
3/8
20
16ER20 UNJ
16EL20 UNJ
16
0.8
0.9
3/8
18
16ER18 UNJ
16EL18 UNJ
16
0.8
1.0
3/8
16
16ER16 UNJ
16EL16 UNJ
16
0.9
1.1
3/8
14
16ER14 UNJ
16EL14 UNJ
16
1.0
1.2
3/8
13
16ER13 UNJ
16EL13 UNJ
16
1.0
1.3
3/8
12
16ER12 UNJ
16EL12 UNJ
16
1.1
1.3
3/8
11
16ER11 UNJ
16EL11 UNJ
16
1.2
1.5
3/8
10
16ER10 UNJ
16EL10 UNJ
16
1.2
1.5
3/8
9
16ER9 UNJ
16EL9 UNJ
16
1.3
1.7
3/8
8
16ER8 UNJ
16EL8 UNJ
16
1.2
1.6
1/2
7
22ER7 UNJ
22EL7 UNJ
22
1.7
2.3
1/2
6
22ER6 UNJ
22EL6 UNJ
22
1.6
2.3
1/2
5
22ER5 UNJ
22EL5 UNJ
22
1.8
2.5
5/8
4.5
27ER4.5 UNJ
27EL4.5 UNJ
27
2.0
2.7
5/8
4
27ER4 UNJ
27EL4 UNJ
27
2.2
3.0
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
28
11IR28 UNJ
11IL28 UNJ
11
0.7
0.7
1/4
24
11IR24 UNJ
11IL24 UNJ
11
0.7
0.8
1/4
20
11IR20 UNJ
11IL20 UNJ
11
0.8
0.9
1/4
18
11IR18 UNJ
11IL18 UNJ
11
0.8
1.0
1/4
16
11IR16 UNJ
11IL16 UNJ
11
0.9
1.1
1/4
14
11IR14 UNJ
11IL14 UNJ
11
1.0
1.2
3/8
28
16IR28 UNJ
16IL28 UNJ
16
0.7
0.7
3/8
24
16IR24 UNJ
16IL24 UNJ
16
0.7
0.8
3/8
20
16IR20 UNJ
16IL20 UNJ
16
0.8
0.9
3/8
18
16IR18 UNJ
16IL18 UNJ
16
0.8
1.0
3/8
16
16IR16 UNJ
16IL16 UNJ
16
0.9
1.1
3/8
14
16IR14 UNJ
16IL14 UNJ
16
1.0
1.2
3/8
13
16IR13 UNJ
16IL13 UNJ
16
1.0
1.3
3/8
12
16IR12 UNJ
16IL12 UNJ
16
1.1
1.3
3/8
11
16IR11 UNJ
16IL11 UNJ
16
1.2
1.5
3/8
10
16IR10 UNJ
16IL10 UNJ
16
1.2
1.5
3/8
9
16IR9 UNJ
16IL9 UNJ
16
1.3
1.7
3/8
8
16IR8 UNJ
16IL8 UNJ
16
1.2
1.6
1/2
7
22IR7 UNJ
22IL7 UNJ
22
1.7
2.3
1/2
6
22IR6 UNJ
22IL6 UNJ
22
1.6
2.3
1/2
5
22IR5 UNJ
22IL5 UNJ
22
1.8
2.5
5/8
4.5
27IR4.5 UNJ
27IL4.5 UNJ
27
2.0
2.7
5/8
4
27IR4 UNJ
27IL4 UNJ
27
2.2
3.0
Whitworth 55°
55° Whitworth full-profile threading inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
Standard Inserts
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
28
11ER28 W
11EL28 W
11
0.6
0.7
1/4
26
11ER26 W
11EL26 W
11
0.7
0.8
1/4
20
11ER20 W
11EL20 W
11
0.8
0.9
1/4
19
11ER19 W
11EL19 W
11
0.8
1.0
1/4
18
11ER18 W
11EL18 W
11
0.8
1.0
1/4
16
11ER16 W
11EL16 W
11
0.9
1.1
1/4
14
11ER14 W
11EL14 W
11
1.0
1.2
3/8
28
16ER28 W
16EL28 W
16
0.6
0.7
3/8
26
16ER26 W
16EL26 W
16
0.7
0.8
3/8
20
16ER20 W
16EL20 W
16
0.8
0.9
3/8
19
16ER19 W
16EL19 W
16
0.8
1.0
3/8
18
16ER18 W
16EL18 W
16
0.8
0.9
3/8
16
16ER16 W
16EL16 W
16
0.9
1.1
3/8
14
16ER14 W
16EL14 W
16
1.0
1.2
3/8
12
16ER12 W
16EL12 W
16
1.1
1.4
3/8
11
16ER11 W
16EL11 W
16
1.1
1.5
3/8
10
16ER10 W
16EL10 W
16
1.1
1.5
3/8
9
16ER9 W
16EL9 W
16
1.2
1.5
3/8
8
16ER8 W
16EL8 W
16
1.2
1.7
1/2
7
22ER7 W
22EL7 W
22
1.6
2.3
1/2
6
22ER6 W
22EL6 W
22
1.6
2.3
1/2
5
22ER5 W
22EL5 W
22
1.7
2.4
5/8
4.5
27ER4.5 W
27EL4.5 W
27
1.8
2.6
5/8
4
27ER4 W
27EL4 W
27
2.0
2.9
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
28
11IR28 W
11IL28 W
11
0.6
0.6
1/4
26
11IR26 W
11IL26 W
11
0.6
0.7
1/4
20
11IR20 W
11IL20 W
11
0.7
0.9
1/4
19
11IR19 W
11IL19 W
11
0.8
1.0
1/4
18
11IR18 W
11IL18 W
11
0.8
1.0
1/4
16
11IR16 W
11IL16 W
11
0.9
1.1
1/4
14
11IR14 W
11IL14 W
11
1.0
1.2
3/8
28
16IR28 W
16IL28 W
16
0.6
0.7
3/8
26
16IR26 W
16IL26 W
16
0.7
0.8
3/8
20
16IR20 W
16IL20 W
16
0.8
0.9
3/8
19
16IR19 W
16IL19 W
16
0.8
1.0
3/8
18
16IR18 W
16IL18 W
16
0.8
1.0
3/8
16
16IR16 W
16IL16 W
16
0.9
1.1
3/8
14
16IR14 W
16IL14 W
16
1.0
1.2
3/8
12
16IR12 W
16IL12 W
16
1.1
1.4
3/8
11
16IR11 W
16IL11 W
16
1.1
1.5
3/8
10
16IR10 W
16IL10 W
16
1.1
1.5
3/8
9
16IR9 W
16IL9 W
16
1.2
1.5
3/8
8
16IR8 W
16IL8 W
16
1.2
1.7
1/2
7
22IR7 W
22IL7 W
22
1.6
2.3
1/2
6
22IR6 W
22IL6 W
22
1.6
2.3
1/2
5
22IR5 W
22IL5 W
22
1.7
2.4
5/8
4.5
27IR4.5 W
27IL4.5 W
27
1.8
2.6
5/8
4
27IR4 W
27IL4 W
27
2.0
2.9
Pressed Inserts
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
3/8
28
16ER28 W
16EL28 W
16
0.6
0.7
3/8
26
16ER26 W
16EL26 W
16
0.7
0.8
3/8
20
16ER20 W
16EL20 W
16
0.8
0.9
3/8
19
16ER19 W
16EL19 W
16
0.8
1.0
3/8
18
16ER18 W
16EL18 W
16
0.8
0.9
3/8
16
16ER16 W
16EL16 W
16
0.9
1.1
3/8
14
16ER14 W
16EL14 W
16
1.0
1.2
3/8
12
16ER12 W
16EL12 W
16
1.1
1.4
3/8
11
16ER11 W
16EL11 W
16
1.1
1.5
3/8
10
16ER10 W
16EL10 W
16
1.1
1.5
3/8
9
16ER9 W
16EL9 W
16
1.2
1.5
3/8
8
16ER8 W
16EL8 W
16
1.2
1.7
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
3/8
28
16IR28 W
16IL28 W
16
0.6
0.7
3/8
26
16IR26 W
16IL26 W
16
0.7
0.8
3/8
20
16IR20 W
16IL20 W
16
0.8
0.9
3/8
19
16IR19 W
16IL19 W
16
0.8
1.0
3/8
18
16IR18 W
16IL18 W
16
0.8
1.0
3/8
16
16IR16 W
16IL16 W
16
0.9
1.1
3/8
14
16IR14 W
16IL14 W
16
1.0
1.2
3/8
12
16IR12 W
16IL12 W
16
1.1
1.4
3/8
11
16IR11 W
16IL11 W
16
1.1
1.5
3/8
10
16IR10 W
16IL10 W
16
1.1
1.5
3/8
9
16IR9 W
16IL9 W
16
1.2
1.5
3/8
8
16IR8 W
16IL8 W
16
1.2
1.7
National Pipe Thread (NPT)
NPT 60° tapered pipe thread inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
27
11ER27 NPT
11EL27 NPT
11
0.7
0.8
1/4
18
11ER18 NPT
11EL18 NPT
11
0.8
1.0
1/4
14
11ER14 NPT
11EL14 NPT
11
0.8
1.0
3/8
27
16ER27 NPT
16EL27 NPT
16
0.7
0.8
3/8
18
16ER18 NPT
16EL18 NPT
16
0.8
1.0
3/8
14
16ER14 NPT
16EL14 NPT
16
0.9
1.2
3/8
11.5
16ER11.5 NPT
16EL11.5 NPT
16
1.1
1.5
3/8
8
16ER8 NPT
16EL8 NPT
16
1.2
1.8
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
27
11IR27 NPT
11IL27 NPT
11
0.7
0.8
1/4
18
11IR18 NPT
11IL18 NPT
11
0.8
1.0
1/4
14
11IR14 NPT
11IL14 NPT
11
0.8
1.0
3/8
27
16IR27 NPT
16IL27 NPT
16
0.7
0.8
3/8
18
16IR18 NPT
16IL18 NPT
16
0.8
1.0
3/8
14
16IR14 NPT
16IL14 NPT
16
0.9
1.2
3/8
11.5
16IR11.5 NPT
16IL11.5 NPT
16
1.1
1.5
3/8
8
16IR8 NPT
16IL8 NPT
16
1.2
1.8
NPTF Dryseal Pipe Thread
60° NPTF full-profile threading inserts for dryseal pipe threads. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
27
11ER27 NPTF
11EL27 NPTF
11
0.7
0.8
1/4
18
11ER18 NPTF
11EL18 NPTF
11
0.8
1.0
1/4
14
11ER14 NPTF
11EL14 NPTF
11
0.8
1.0
3/8
27
16ER27 NPTF
16EL27 NPTF
16
0.7
0.8
3/8
18
16ER18 NPTF
16EL18 NPTF
16
0.8
1.0
3/8
14
16ER14 NPTF
16EL14 NPTF
16
0.9
1.2
3/8
11.5
16ER11.5 NPTF
16EL11.5 NPTF
16
1.1
1.5
3/8
8
16ER8 NPTF
16EL8 NPTF
16
1.2
1.8
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
27
11IR27 NPTF
11IL27 NPTF
11
0.7
0.8
1/4
18
11IR18 NPTF
11IL18 NPTF
11
0.8
1.0
1/4
14
11IR14 NPTF
11IL14 NPTF
11
0.8
1.0
3/8
27
16IR27 NPTF
16IL27 NPTF
16
0.7
0.8
3/8
18
16IR18 NPTF
16IL18 NPTF
16
0.8
1.0
3/8
14
16IR14 NPTF
16IL14 NPTF
16
0.9
1.2
3/8
11.5
16IR11.5 NPTF
16IL11.5 NPTF
16
1.1
1.5
3/8
8
16IR8 NPTF
16IL8 NPTF
16
1.2
1.8
ACME 29° Trapezoidal Thread
29° ACME full-profile threading inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
3/8
16
16ER16 ACME
16EL16 ACME
16
1.0
1.1
3/8
14
16ER14 ACME
16EL14 ACME
16
1.0
1.2
3/8
12
16ER12 ACME
16EL12 ACME
16
1.1
1.2
3/8
10
16ER10 ACME
16EL10 ACME
16
1.3
1.3
3/8
8
16ER8 ACME
16EL8 ACME
16
1.4
1.5
1/2
6
22ER6 ACME
22EL6 ACME
22
1.8
2.1
1/2
5
22ER5 ACME
22EL5 ACME
22
2.0
2.3
5/8
4
27ER4 ACME
27EL4 ACME
27
2.4
2.7
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
3/8
16
16IR16 ACME
16IL16 ACME
16
1.0
1.1
3/8
14
16IR14 ACME
16IL14 ACME
16
1.0
1.2
3/8
12
16IR12 ACME
16IL12 ACME
16
1.1
1.2
3/8
10
16IR10 ACME
16IL10 ACME
16
1.3
1.3
3/8
8
16IR8 ACME
16IL8 ACME
16
1.4
1.5
1/2
6
22IR6 ACME
22IL6 ACME
22
1.8
2.1
1/2
5
22IR5 ACME
22IL5 ACME
22
2.0
2.3
5/8
4
27IR4 ACME
27IL4 ACME
27
2.4
2.7
30° Trapezoidal Thread (TR)
30° TR full-profile threading inserts for metric trapezoidal threads. D is expressed in inches; pitch, L, X and Y are expressed in millimetres.
External
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
3/8
1.5
16ER1.5 TR
16EL1.5 TR
16
1.0
1.1
3/8
2.0
16ER2 TR
16EL2 TR
16
1.1
1.3
3/8
3.0
16ER3 TR
16EL3 TR
16
1.3
1.5
1/2
4.0
22ER4 TR
22EL4 TR
22
1.7
1.9
1/2
5.0
22ER5 TR
22EL5 TR
22
2.1
2.5
5/8
6.0
27ER6 TR
27EL6 TR
27
2.2
2.6
5/8
7.0
27ER7 TR
27EL7 TR
27
2.3
2.7
Internal
D (in)
Pitch (mm)
Right Hand
Left Hand
L
X
Y
3/8
1.5
16IR1.5 TR
16IL1.5 TR
16
1.0
1.1
3/8
2.0
16IR2 TR
16IL2 TR
16
1.1
1.3
3/8
3.0
16IR3 TR
16IL3 TR
16
1.3
1.5
1/2
4.0
22IR4 TR
22IL4 TR
22
1.7
1.9
1/2
5.0
22IR5 TR
22IL5 TR
22
2.1
2.5
5/8
6.0
27IR6 TR
27IL6 TR
27
2.2
2.6
5/8
7.0
27IR7 TR
27IL7 TR
27
2.3
2.7
American Buttress (ABUT)
American buttress full-profile threading inserts. Pitch is expressed in TPI (threads per inch). D is expressed in inches; L, X and Y are expressed in millimetres.
External
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
20
11ER20 ABUT
11EL20 ABUT
11
1.0
1.4
1/4
16
11ER16 ABUT
11EL16 ABUT
11
1.3
1.9
3/8
20
16ER20 ABUT
16EL20 ABUT
16
1.0
1.4
3/8
16
16ER16 ABUT
16EL16 ABUT
16
1.3
1.9
3/8
12
16ER12 ABUT
16EL12 ABUT
16
1.4
2.0
3/8
10
16ER10 ABUT
16EL10 ABUT
16
1.5
2.3
1/2
8
22ER8 ABUT
22EL8 ABUT
22
2.0
3.2
1/2
6
22ER6 ABUT
22EL6 ABUT
22
2.2
3.5
Internal
D (in)
TPI
Right Hand
Left Hand
L
X
Y
1/4
20
11IR20 ABUT
11IL20 ABUT
11
1.0
1.4
1/4
16
11IR16 ABUT
11IL16 ABUT
11
1.3
1.9
3/8
20
16IR20 ABUT
16IL20 ABUT
16
1.0
1.4
3/8
16
16IR16 ABUT
16IL16 ABUT
16
1.3
1.9
3/8
12
16IR12 ABUT
16IL12 ABUT
16
1.4
2.0
3/8
10
16IR10 ABUT
16IL10 ABUT
16
1.5
2.3
1/2
8
22IR8 ABUT
22IL8 ABUT
22
2.0
3.2
1/2
6
22IR6 ABUT
22IL6 ABUT
22
2.2
3.5
Need help selecting a threading insert? Contact us with the thread standard, pitch, internal or external application, and required model.
