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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Taper Grooved Pins - Half-length Progressive Grooves - Pin with Rounded Ends (RN)

ISO 8745 (RN) - 2025

Display drawing:

国际ISO 8745 (RN) - 2025 ISO8745 8745ISO Taper Grooved Pins - Half-length Progressive Grooves - Pin with Rounded Ends (RN)
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 *Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get .
Nominal Diameter
d
(1) 1.5 2 2.5 3 (3.5) 4 5 6 (7)
d max
min
c Nominal Size
max
min
1 1.5 2 2.5 3 3.5 4 5 6 7
0.975 1.475 1.975 2.475 2.975 3.425 3.925 4.925 5.925 6.91
0.13 0.2 0.27 0.34 0.4 0.47 0.54 0.67 0.8 0.94
0.23 0.35 0.42 0.49 0.55 0.67 0.74 0.87 1 1.19
0.03 0.05 0.12 0.19 0.25 0.27 0.34 0.47 0.6 0.69
d1（steel pin）
- - - - - - - - - -
d1（Stainless steel pin）
- - - - - - - - - -
Nominal Diameter
d
8 (9) 10 12 (14) 16 (18) 20 25
d max
min
c Nominal Size
max
min
8 9 10 12 14 16 18 20 25
7.91 8.91 9.91 11.89 13.89 15.89 17.89 19.87 24.87
1.07 1.21 1.34 1.61 1.88 2.14 2.41 2.68 3.35
1.32 1.46 1.64 1.91 2.23 2.49 2.86 3.13 3.9
0.82 0.96 1.04 1.31 1.53 1.79 1.96 2.23 2.8
d1（steel pin）
- - - - - - - - -
d1（Stainless steel pin）
- - - - - - - - -
①,Chamfered end only upon specific request at the time of the order.
②,The groove angle of 70° is a reference dimension, see ISO 13669.

Alternative history

ISO 8745 - 1997 ISO 8745RN - 2025
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Similar Standards

1 Grooved Pins - Half-length Reverse Taper Grooved [ISO]
ISO 8741 - 1997 		Grooved Pins - Half-length Reverse Taper Grooved
2 Metric Grooved Pins - Half-length Reverse-taper Grooved, TYPE 41 [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M A) - 2000 (R2005) 		Metric Grooved Pins - Half-length Reverse-taper Grooved, TYPE 41
3 Taper Grooved Pins - Half-length Progressive Grooves - Pin with Chamfered Ends (CH) [ISO]
ISO 8745 (CH) - 2025 		Taper Grooved Pins - Half-length Progressive Grooves - Pin with Chamfered Ends (CH)
4 Grooved Pins - Type A [ASME]
ASME B 18.8.2 - 2020 		Grooved Pins - Type A
5 Taper Grooved Pins - Full-length Progressive Grooves - Pin with Rounded Ends (RN) [ISO]
ISO 8744 (RN) - 2025 		Taper Grooved Pins - Full-length Progressive Grooves - Pin with Rounded Ends (RN)
6 Reverse-taper Grooved Pins - One Quarter-length Progressive Grooves on Both Sides, Pin with Chamfered Ends [ISO]
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7 Reverse-taper Grooved Pins - Half-length Progressive Grooves - Chamfered Ends [ISO]
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8 Grooved Pins, Full Length Taper Grooved [DIN]
DIN 1471 - 1978 		Grooved Pins, Full Length Taper Grooved
9 Groovd Pins - Full-Length Taper Grooved [DIN EN ISO]
DIN EN ISO 8744 - 1998 		Groovd Pins - Full-Length Taper Grooved
10 Groovd Pins-Full-Length Taper Grooved [ISO]
ISO 8744 - 1997 		Groovd Pins-Full-Length Taper Grooved
11 Reverse-taper Grooved Pins - Half-length Progressive Grooves - Rounded Ends [ISO]
ISO 8741 (RN) - 2025 		Reverse-taper Grooved Pins - Half-length Progressive Grooves - Rounded Ends
12 Metric Series, Grooved Pins with Full-length Taper Grooved, Type 44 [Table 6] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T6) - 2000 (R2005) 		Metric Series, Grooved Pins with Full-length Taper Grooved, Type 44 [Table 6]
13 Reverse-taper Grooved Pins - One Quarter-length Progressive Grooves on Both Sides, Pin with Rounded Ends [ISO]
ISO 13670 (RN) - 2025 		Reverse-taper Grooved Pins - One Quarter-length Progressive Grooves on Both Sides, Pin with Rounded Ends
14 Grooved Pins, Half Length Taper Grooved [DIN]
DIN 1472 - 1978 		Grooved Pins, Half Length Taper Grooved
15 Grooved Pins, Half-Length Taper Grooved [DIN EN ISO]
DIN EN ISO 8745 - 1998 		Grooved Pins, Half-Length Taper Grooved
16 Taper Grooved Pins - Full-length Progressive Grooves - Pin with Chamfered Ends (CH) [ISO]
ISO 8744 (CH) - 2025 		Taper Grooved Pins - Full-length Progressive Grooves - Pin with Chamfered Ends (CH)
17 Grooved Pins - Half-length Reverse-Taper Grooved [DIN EN ISO]
DIN EN ISO 8741 - 1998 		Grooved Pins - Half-length Reverse-Taper Grooved
18 Grooved Pins-Half-Length Reverse-Taper Grooved [DIN]
DIN 1474 - 1978 		Grooved Pins-Half-Length Reverse-Taper Grooved
19 Grooved Pins - Half-length Reverse-taper Grooved [EN ISO]
EN ISO 8741 - 1997 		Grooved Pins - Half-length Reverse-taper Grooved
20 Grooved Pins - Type A [ASME]
ASME B 18.8.2 - 2000 (R2010) 		Grooved Pins - Type A
21 Grooved Pins - Half-length Reverse-taper Grooved [EN]
EN 28741 - 1992 		Grooved Pins - Half-length Reverse-taper Grooved
22 Grooved Pins with Half-length Taper Grooved, Metric Series, TYPE 45 [Table 7] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T7) - 2000 (R2005) 		Grooved Pins with Half-length Taper Grooved, Metric Series, TYPE 45 [Table 7]
23 Grooved Pins-Half-Length Taper Grooved [ISO]
ISO 8745 - 1997 		Grooved Pins-Half-Length Taper Grooved
24 Grooved Pins-taper Grooved, A-style [GB]
GB /T 13829.2 (A) - 1992 		Grooved Pins-taper Grooved, A-style
25 Grooved Pins - Half-Length Taper Grooved [GB]
GB /T 13829.6 - 2004 		Grooved Pins - Half-Length Taper Grooved
26 Grooved Pins-half-length Taper Grooved [GB]
GB /T 13829.2 (B) - 1992 		Grooved Pins-half-length Taper Grooved
27 Grooved Pins - Half-Length Taper Grooved [NF]
NF E 25-765 - 1997 		Grooved Pins - Half-Length Taper Grooved
28 Grooved Pins-half-length Reverse-taper Grooved [GB]
GB /T 13829.2 (C) - 1992 		Grooved Pins-half-length Reverse-taper Grooved
29 Grooved Pins-Full-Length Taper Grooved [NF]
NF E 25-764 - 1997 (R2002) 		Grooved Pins-Full-Length Taper Grooved
30 Grooved Pins-Half-Length Reverse-Taper Grooved [GB]
GB /T 13829.7 - 2004 		Grooved Pins-Half-Length Reverse-Taper Grooved
31 Grooved Pins. Half-Length Reverse-Taper Grooved [NF]
NF E 25-762 - 1997 		Grooved Pins. Half-Length Reverse-Taper Grooved
32 Groovd Pins-Full-Length Taper Grooved [GB]
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33 Grooved Straight Pins - Type A [SAE]
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34 Grooved Straight Pins - Type B [SAE]
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35 Grooved Straight Pins - Type D [SAE]
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36 Grooved Pins - Half-length Reverse Taper Grooved [IS]
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