Threaded Inserts / Taps for Inserts / Installation Tools / Removal Tools
Retaining Rings
Internal C-Rings / Hair Pins / Cotter Pins
RNPN
JNPN
JNSPN
Trivalent Chromate
304 Stainless Steel
—
25.2
33.8
40.2
46
9.7
13.1
15.7
17.5
3.9
5.3
5.7
6
3
4
5
6
No.
L
L1
4
5
6
8
10
12
1
1.2
1.6
1.8
3
3.6
4.8
5.4
16.3
17.9
21.2
27.7
32.6
35.8
6
6.5
7.8
10.4
12.2
13.2
L2
R
h
S
D1
(Applicable Shaft Dia.)
D2
(Shaft Bore Dia.)
1.5
2
2.5
3
4
5
6
1
1.5
1.8
2.4
3.2
4.2
0.5
0.6
0.8
0.9
4
5
6
8
10
12
1.2
1.5
1.9
2.2
NPN
NSPN Stainless Steel
L
(a)
Type
NPN
NSPN
c
d
b
Part Number
NSPN
Stainless Steel
L
No.
0.8
1
1.2
1.6
2
2.5
3.2
4
5
8
10
10
10
10
12
12
12
12
12
15
15
15
15
15
d
20
20
20
25
35
0.7
0.9
1
1.4
1.8
2.3
2.9
3.7
4.6
a
(Approx.)
1.6
2.5
3.2
4
b
c
2.4
3
3
3.2
4
5
6.4
8
10
1.4
1.8
2
2.8
3.6
4.6
5.8
7.4
9.2
D
K
D
RNPN6
NSPN3.2
-
L
K
A
L
HLTS3
HLTX5
HLSS10
HLSX
-
L
HLTB
1.25
1.0
HLTN
Slot
Opening
Tongue
Threaded Insert
(Fig. 1)
(Fig. 2)
1.5
D
K
7
5.5
82
8.5
6.5
88
10.5
8
D
Part Number
Type No.
3
4
5
6
HLTP
8
10
12
16
Applicable Threaded
Insert M
3
4
5
6
8
10
12
16
L
A
80
150
165
175
180
200
210
103
124
Tang Break-Off Tools
Part Number
Applicable
Type No. Threaded Insert M
3
3
4
4
5
5
6
6
HLTB
8
8
10
10
12
12
16
16
L
100
110
115
114
D
d
6
9
10
12
14
16
20
1.8
2.6
3.5
4.2
5.5
7.5
8.5
12
Part Number
Type
No.
1
HLTN 2
3
Applicable
Inserts M
3/4/5
6 / 8 / 10
12 / 16
L
A
92
109
117
60
75
100
How to Handle Thread Inserts
- L Pitch
Sleeve
Thread Insert
1.25
1.25
L
75
Material: 1045 Carbon Steel Equivalent
Surface Treatment: Black Oxide
Mandrel
- 20
4
4.5
5
5.5
6.5
8
11
Insert Removal Tools
L
L
- 4.5
- 15 - 8 -
K
5
5.5
6
6.2
7
8.5
10.5
14
A
L
HLTN No. 2 / 3
L
Part Number
1.0
D
A
D
Material: 4137 Alloy Steel
Surface Treatment: Black Oxide
L
L
L L
L
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D
D
K
K
A
d
HLTN No.1
L
HLTP
Part Number
K
K
K
K
D
K
K
KK
D
KA
A
A
A
L
L
Insert Removal Tools
Small Parts / Magnets
*M(After Insertion)
D
D
D
D
DD
D
L
Material
SWRM Low Carbon Steel
304 Stainless Steel
(Flat End)
NPN
L
A
h
10
12
L
55
61
67
65
75
82
88
105
A
D2
(Shaft Bore Dia.)
1.5
1.9
2.2
2.4
R
Surface
Treatment
Black Anodize
(for 4137 Alloy Steel part)
L
AA
1.4
2.1
3
4
D1
(Applicable Shaft Dia.)
6
8
10
12
L2
Cotter Pins
Type
*M(After Insertion)
D
Hardness
Material
Sleeve
Mandrel
PPS
3–6
4137
L Alloy Steel Alloy Steel
8–16 4137
No.
D
D1
D1
SWRH6 Carbon Wire Steel (JIS)
L1
d1
Stainless Steel
L
L
Material
L
d
(Wire Dia.)
JNPN
JNSPN
HLTB
Tang Break-Off Tools
L
d
(Wire Dia.)
1.2
1.6
1.8
2
No.
6
8
10
12
Part Number
Type
L
Tap Pilot Hole
Pitch Diameter
(Reference)
0.5
3.11–3.20
0.7
4.16–4.29
0.8
5.18–5.33
1.0
6.22–6.40
1.25
8.28–8.48
1.5
10.33–10.56
1.75
12.38–12.64
2.0
16.44–16.73
1.0
8.28–8.48
1.0
10.33–10.56
1.25
1.25
12.38–12.64
1.5
Threaded Insert Installation Tools
A
RNPN
2.5
Fine Thread
L
LSleeve
L
2.7
*(L) After
Insertion
3 4.5 6
4
6
8
5 7.5 10
6
9 12
8 12 16
10 15 20
12 18 24
16 24 32
8 16 24
10 15
10 15 20
12 18
12
24
Part Number Applicable Threaded
Insert M
Type No.
3
3
4
4
HLTX
5
5
6
6
HLTY
8
8
HLTZ
10
Coarse 10
12
12
16
16
Part Number
Pitch
Type
No.
HLSX
8
1.0
HLSY
HLSZ
Sleeve
A
Part Number
2.2
Sleeve
A
Type
L
Mandrel
Mandrel
A
d1
Sleeve
Sleeve
L
Mandrel
2
40°
R
Type
d
d
d1
L2
Mandrel L
Mandrel
HLTP
L
A
h
R
R
1.9
40°
L
Sleeve
A
R
L1
L2
Installation Tools
1.65
L
Sleeve
Material: JIS-SKH
Hardness: 61–64 HRC min.
A
40°
JNPN
L
L2JNSPN Stainless
L1 Steel
40°
L
Mandrel
Mandrel
Finish
Coarse Tapping
Medium Tapping
Finish Tapping
D
L1
83.5
L
LL
L
+0.14
0
HLSX
HLSY
L
HLSZ
D
L1
L2
80
1.35
+0.35
0
HLTX
HLTY
HLTZ
L
L
L
+0.21
0
+0.3
0
Coarse Fine Thread
D
L
L
64
L
M6 or More
1.5
Part Number
Type
*M
3
4
5
6
HLTS
8
Coarse
10
12
16
8
10
HLSS
Fine Thread
12
Taps for Threaded Inserts
D
8
L
1.15
+0.25
0
L
Notch
A
7
Notch
M3–5
+0.11
0
Material: 304 Stainless Steel
Notch
A
RNPN
±0.08
2.5
Taps for Inserts
d
±0.55
5.5
6
6.6
5.1
2
2.5
4
5.7
5.8
5.9
6.1
6.5
6.8
6.9
7.4
4.5
±0.07
±0.45
5.2
n
(Min.)
Tolerance
d
1.75
3.5
2
m
d
3
±0.06
1.5
±0.4
4.1
4.3
4.4
4.6
4.7
4
5
6
7
8
9
11
12
13
15
16
18
20
21
24
26
28
30
33
34
39
41
46
48
53
57
Tolerance
*L(After Insertion) Tongue
Notch
*M (Coarse Thread) / L are the sizes after insertion.
L dimension before insertion is shorter than that after the insertion.
d
1.2
±0.25
1.7
d2
10.4
11.4
12.5
13.6
14.6
15.7
16.8
17.8
20
21
22
23
25.2
26.2
27.2
29.4
31.4
33.7
37
39
42.5
44.5
47.5
49.5
55
58
63
65
71
75
d
2.5
±0.2
Hair Pins
3.6
3.7
3.8
4
1.9
±0.05
1.5
d1
10
11
12
13
14
15
16
17
19
20
21
22
24
25
26
28
30
32
35
37
40
42
45
47
52
55
60
62
68
72
D2
1
1.2
d4
D2
1.7
±0.18
d0
(Min.)
Notch
Notch
h
1.5
a
(Approx.)
2.8
3
3.1
*L(After Insertion) Tongue
d
a
b
(Approx.)
S
85.5
Tolerance
*L(After Insertion) Tongue
*L(After Insertion) Tongue
Notch
Applicable Bore (Reference)
d
80
t
Tolerance
Hardness
h
10.7
11.8
13
14.1
15.1
16.2
17.3
18.3
20.5
21.5
22.5
23.5
25.9
26.9
27.9
30.1
32.1
34.4
37.8
39.8
43.5
45.5
48.5
50.5
56.2
59.2
64.2
66.2
72.5
76.5
Material
S
Stainless Steel
d3
10
11
12
13
14
15
16
17
19
20
21
22
24
25
26
28
30
32
35
37
40
42
45
47
52
55
60
62
68
72
Reference
h
RTWS
No.
Type
*L(After Insertion) Tongue
*L(After Insertion) Tongue
*L(After Insertion) Tongue
Spring Steel
44–53 HRC min.
RTWN
RTWS 304 Stainless Steel-CSP 36–44 HRC min.
Retaining Ring
Type
d1
d2
d2
d4
n
d
Part Number
RTWN
2460
*M(After Insertion)
*M(After Insertion)
*M(After
Insertion)
*M(After
Insertion)
b
d3
t
Threaded Inserts
HLTS Coarse
HLSS Fine Thread
K
Threaded Inserts
inimum circumferential diameter when
d4: M
retaining ring fits inside d1
(Clearance inner diameter)
*M(After Insertion)
Applicable Holes
m
d0
Small Parts / Magnets
RTWN
RTWS Stainless Steel
Retaining Rings –
Internal C-Ring
Tongue Threaded Insert
(Fig. 3)
Threaded Insert
(Fig. 4)
1. D
rill a pilot hole in the work within the appropriate limit of tap pilot hole diameters shown in the
above table. (Hole Depth > Length after Insertion + 2.5 x P Pitch))
2. Tap with “Taps for Inserts” (Coarse / Medium / Finish Tapping in that order), and completely remove
metal chips.
3. Insert Threaded Inserts to tip of sleeve of the Insert Tool (with tang on the tip side), and clip on the
tang at the mandrel slot (Fig. 1). Turn the handle and insert Threaded Insert into the guide of thread
part on the tool tip. Set it so that the threaded insert does not protrude more than the sleeve tip
(leaving 1 or 2 pitches).
4. Turn the handle to install Threaded Inserts by positioning the insert tool perpendicular to the work
(Fig. 2). Check the insertion condition from the opening of the sleeve tip. Remove the tool from the
work when insertion is complete.
*Inserting while pressing the handle hard in the insertion direction causes damages such as
skipped threads. Always turn the handle lightly in the horizontal direction. Do not reverse the
rotation during the insertion as that will cause damages.
5. After the insertion is complete, insert the tang break-off tool, and break off the tang from the notch
by striking the head sharply with a hammer (Fig. 3).
6. When removing Threaded Inserts, press an Insert Removal Tool onto the insert, and slowly turn
counterclockwise to remove it (Fig. 4). When reinserting the Threaded Insert into the removed hole,
use special tap again before inserting.
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