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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Grooved Pins-One-Third-Length Centre Grooved - Pin with Rounded Ends (RN)

ISO 8742 (RN) - 2026

Display drawing:

国际ISO 8742 (RN) - 2026 ISO8742 8742ISO Grooved Pins-One-Third-Length Centre Grooved - 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)
d1 max
min
a Nominal Size
max
min
d2 tol.
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
+0.05 +0.05 +0.05 ±0.05 ±0.05 ±0.05 ±0.05 ±0.05 ±0.05 ±0.05
d2，steel pins
- - - - - - - - - -
d2，stainless steel pins
- - - - - - - - - -
Nominal Diameter
d
8 (9) 10 12 (14) 16 (18) 20 25
d1 max
min
a Nominal Size
max
min
d2 tol.
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
±0.05 ±0.05 ±0.05 ±0.1 ±0.1 ±0.1 ±0.1 ±0.1 ±0.1
d2，steel pins
- - - - - - - - -
d2，stainless steel pins
- - - - - - - - -
①,r (参考) ≈ d1.

Alternative history

ISO 8742 - 1997 ISO 8742 - 2026
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Similar Standards

1 Pin with Both Chamfered Points (CH) [ISO]
ISO 8740 (CH) - 2025 		Pin with Both Chamfered Points (CH)
2 Grooved Pins-Half-Length Centre Grooved - Pin with Chamfered Ends (CH) [ISO]
ISO 8743 (CH) - 2026 		Grooved Pins-Half-Length Centre Grooved - Pin with Chamfered Ends (CH)
3 Grooved Pins - 1/3 Length Centre Grooved [DIN]
DIN 1475 - 1978 		Grooved Pins - 1/3 Length Centre Grooved
4 Grooved Pin, Full Length Parallel Grooved with Pilot [DIN EN ISO]
DIN EN ISO 8739 - 1998 		Grooved Pin, Full Length Parallel Grooved with Pilot
5 Full-Length Parallel Grooved, with Chamfer [EN]
EN 28740 - 1992 		Full-Length Parallel Grooved, with Chamfer
6 Grooved Pins, Half Length Grooved with Gorge [DIN]
DIN 1469 - 1978 		Grooved Pins, Half Length Grooved with Gorge
7 Grooved Pins - Type G [ASME]
ASME B 18.8.2 - 2020 		Grooved Pins - Type G
8 Grooved Pins-One-Third-Length Centre Grooved [ISO]
ISO 8742 - 1997 		Grooved Pins-One-Third-Length Centre Grooved
9 Grooved Pins-Full-Length Parallel Grooved, with Pilot [ISO]
ISO 8739 - 1997 		Grooved Pins-Full-Length Parallel Grooved, with Pilot
10 Grooved pin, full length parallel grooved with pilot [DIN]
DIN 1470 - 1978 		Grooved pin, full length parallel grooved with pilot
11 Grooved Pins - Half-Length Centre Grooved [EN ISO]
EN ISO 8743 - 1997 		Grooved Pins - Half-Length Centre Grooved
12 Grooved Pins, Half Length Grooved with Gorge [DIN]
DIN 1469 - 2011 		Grooved Pins, Half Length Grooved with Gorge
13 Grooved Pins. Full-Length Parallel Grooved, with Chamfer [DIN EN ISO]
DIN EN ISO 8740 - 1998 		Grooved Pins. Full-Length Parallel Grooved, with Chamfer
14 Parallel Grooved Pins - Half-length Diamond Grooves - Rounded Ends [ISO]
ISO 13672 (RN) - 2025 		Parallel Grooved Pins - Half-length Diamond Grooves - Rounded Ends
15 Grooved Pins - Half-Length Centre Grooved [EN]
EN 28743 - 1992 		Grooved Pins - Half-Length Centre Grooved
16 Metric Grooved Pins, Half-length Centre Grooved, TYPE 43 [TABLE 4] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T4) - 2000 (R2005) 		Metric Grooved Pins, Half-length Centre Grooved, TYPE 43 [TABLE 4]
17 Grooved Pins, Full Length Parallel Grooved with Chamfer [DIN]
DIN 1473 - 1978 		Grooved Pins, Full Length Parallel Grooved with Chamfer
18 Pin with Pilotpoint and Rounded Ends [ISO]
ISO 8739 (RN) - 2025 		Pin with Pilotpoint and Rounded Ends
19 Metric, Grooved Pins with Half-length Groove, TYPE 43-1 / TYPE 43-2 [TABLE 5] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T5) - 2000 (R2005) 		Metric, Grooved Pins with Half-length Groove, TYPE 43-1 / TYPE 43-2 [TABLE 5]
20  Pin with chamfered point and rounded ends (RN) [ISO]
ISO 8740 (RN) - 2025 		 Pin with chamfered point and rounded ends (RN)
21 Grooved Pins-One-Third-Length Centre Grooved - Pin with Chamfered Ends (CH) [ISO]
ISO 8742 (CH) - 2026 		Grooved Pins-One-Third-Length Centre Grooved - Pin with Chamfered Ends (CH)
22 Grooved Pins-Full-Length Parallel Grooved, with Chamfer [ISO]
ISO 8740 - 1997 		Grooved Pins-Full-Length Parallel Grooved, with Chamfer
23 Grooved Pins - Half-Length Centre Grooved [DIN EN ISO]
DIN EN ISO 8743 - 1998 		Grooved Pins - Half-Length Centre Grooved
24 Grooved Pins - Type F [ASME]
ASME B 18.8.2 - 2000 (R2010) 		Grooved Pins - Type F
25 Grooved Pins - Type E [ASME]
ASME B 18.8.2 - 2000 (R2010) 		Grooved Pins - Type E
26 Grooved Pins - 1/3 Length Centre Grooved [DIN EN ISO]
DIN EN ISO 8742 - 1998 		Grooved Pins - 1/3 Length Centre Grooved
27 Grooved Pins - Type E [ASME]
ASME B 18.8.2 - 2020 		Grooved Pins - Type E
28 Grooved Pins, Half Length Grooved with Gorge [DIN]
DIN 1469 - 2012 		Grooved Pins, Half Length Grooved with Gorge
29 Grooved Pins - Type G [ASME]
ASME B 18.8.2 - 2000 (R2010) 		Grooved Pins - Type G
30 Grooved Pins - Type H [ASME]
ASME B 18.8.2 - 2020 		Grooved Pins - Type H
31 Grooved Pins, Full-length Parallel Grooved - Metric Series, TYPE 39 / TYPE 40 [Table 3] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T3) - 2000 (R2005) 		Grooved Pins, Full-length Parallel Grooved - Metric Series, TYPE 39 / TYPE 40 [Table 3]
32 Parallel Grooved Pins - Half-length Diamond Grooves - Chamfered Ends [ISO]
ISO 13672 (CH) - 2025 		Parallel Grooved Pins - Half-length Diamond Grooves - Chamfered Ends
33 Pin Pilot Point and with Chamfered Ends [ISO]
ISO 8739 (CH) - 2025 		Pin Pilot Point and with Chamfered Ends
34 Grooved Pins-Half-Length Centre Grooved [ISO]
ISO 8743 - 1997 		Grooved Pins-Half-Length Centre Grooved
35 Grooved Pins - Type H [ASME]
ASME B 18.8.2 - 2000 (R2010) 		Grooved Pins - Type H
36 Metric, Grooved Pins with One Third Length Groove in the Middle, TYPE 42 [TABLE 4] [ASME/ANSI]
ASME/ANSI B 18.8.100M (B18.8.9M T4) - 2000 (R2005) 		Metric, Grooved Pins with One Third Length Groove in the Middle, TYPE 42 [TABLE 4]
37 Grooved Pins-Half-Length Centre Grooved - Pin with Rounded Ends (RN) [ISO]
ISO 8743 (RN) - 2026 		Grooved Pins-Half-Length Centre Grooved - Pin with Rounded Ends (RN)
38 Grooved Pins - Type F [ASME]
ASME B 18.8.2 - 2020 		Grooved Pins - Type F
39 Grooved Pin, Full Length Parallel Grooved with Pilot [GB]
GB /T 13829.1 - 2004 		Grooved Pin, Full Length Parallel Grooved with Pilot
40 Grooved Pins. One-Third-Length Centre Grooved [NF]
NF E 25-763 - 1997 (R2002) 		Grooved Pins. One-Third-Length Centre Grooved
41 Grooved Pins. Half Length Centre Grooved [NF]
NF E 25-750 - 1997 		Grooved Pins. Half Length Centre Grooved
42 Grooved Pins - Half-Length Centre Grooved [GB]
GB /T 13829.4 - 2004 		Grooved Pins - Half-Length Centre Grooved
43 Grooved Pins-one-third-length Centre Grooved [GB]
GB /T 13829.1 (C) - 1992 		Grooved Pins-one-third-length Centre Grooved
44 Grooved Pin, Full Length Parallel Grooved with Pilot [GB]
GB /T 13829.1 (A) - 1992 		Grooved Pin, Full Length Parallel Grooved with Pilot
45 Grooved Pins - Half-length Centre Grooved [GB]
GB /T 13829.1 (D) - 1992 		Grooved Pins - Half-length Centre Grooved
46 Grooved Pins-One-Third-Length Centre Grooved [GB]
GB /T 13829.3 - 2004 		Grooved Pins-One-Third-Length Centre Grooved
47 Grooved Pins-full-length Parallel Grooved, with Chamferw [GB]
GB /T 13829.1 (B) - 1992 		Grooved Pins-full-length Parallel Grooved, with Chamferw
48 Grooved Pins. Full Length Paralled Grooved, with Chamfer [NF]
NF E 25-772 - 1997 (R2002) 		Grooved Pins. Full Length Paralled Grooved, with Chamfer
49 Grooved Pins - Full-length Parallel Grooved, With Pilot [NF]
NF E 25-761 - 1997 		Grooved Pins - Full-length Parallel Grooved, With Pilot
50 Grooved Pin, Full Length Parallel Grooved with Chamfer [GB]
GB /T 13829.2 - 2004 		Grooved Pin, Full Length Parallel Grooved with Chamfer
51 Grooved Straight Pins - Type F [SAE]
SAE J 494 (F) - 2004 		Grooved Straight Pins - Type F
52 Grooved Straight Pins - Type E [SAE]
SAE J 494 (E) - 2004 		Grooved Straight Pins - Type E
53 Grooved Straight Pins - Type C [SAE]
SAE J 494 (C) - 2004 		Grooved Straight Pins - Type C