Metric Size, Steel
Locating / Seating Pins
DIN 6321

DIN 6321

RoHS Compliant

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Specification
Information

Pin body : Steel, tempered, hardened
Type A: Cylindrical, no center hole (seating pin)
Type B: Cylindrical, with center hole (locating pin)
Type C: Flattened, with center hole (locating pin)

DIN 6321 locating / seating pins are inserted into bores for positioning. The flattened design of Type C provides tolerance for the spacing of the two bores. Another application of this design is to fix parts to be positioned in one direction only.
Types A and B can also be used as bearing surfaces, stops, or feet.
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Type A - Seating Pin

Dimensions in:

millimeters
(inches)

Part Number
d1 (g6)
h1 (h9)
d2 (n6)
Length
l
6
(.24)
5
(.20)
4
(.16)
6
(.24)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
16
(.63)
8
(.31)
8
(.31)
12
(.47)
25
(.98)
10
(.39)
12
(.47)
18
(.71)
 
Type B - Cylindrical Locating Pin

Dimensions in:

millimeters
(inches)

Part Number
d1 (g6)
h1 (h9)
h2
d2 (n6)
Length
l
6
(.24)
7
(.28)
4
(.16)
4
(.16)
6
(.24)
6
(.24)
12
(.47)
4
(.16)
4
(.16)
6
(.24)
8
(.31)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
8
(.31)
16
(.63)
6
(.24)
6
(.24)
9
(.35)
10
(.39)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
10
(.39)
18
(.71)
6
(.24)
6
(.24)
9
(.35)
12
(.47)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
12
(.47)
18
(.71)
6
(.24)
6
(.24)
9
(.35)
16
(.63)
13
(.51)
8
(.31)
8
(.31)
12
(.47)
16
(.63)
22
(.87)
8
(.31)
8
(.31)
12
(.47)
20
(.79)
15
(.59)
9
(.35)
12
(.47)
18
(.71)
20
(.79)
25
(.98)
9
(.35)
12
(.47)
18
(.71)
25
(.98)
15
(.59)
9
(.35)
12
(.47)
18
(.71)
25
(.98)
25
(.98)
9
(.35)
12
(.47)
18
(.71)
 
Type C - Flattened Locating Pin

Dimensions in:

millimeters
(inches)

Part Number
d1 (g6)
h1 (h9)
h2
d2 (n6)
Length
l
s~
6
(.24)
7
(.28)
4
(.16)
4
(.16)
6
(.24)
1
(.04)
6
(.24)
12
(.47)
4
(.16)
4
(.16)
6
(.24)
1
(.04)
8
(.31)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
1.6
(.06)
8
(.31)
16
(.63)
6
(.24)
6
(.24)
9
(.35)
1.6
(.06)
10
(.39)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
2.5
(.22)
10
(.39)
18
(.71)
6
(.24)
6
(.24)
9
(.35)
2.5
(.22)
12
(.47)
10
(.39)
6
(.24)
6
(.24)
9
(.35)
2.5
(.22)
12
(.47)
18
(.71)
6
(.24)
6
(.24)
9
(.35)
2.5
(.22)
16
(.63)
13
(.51)
8
(.31)
8
(.31)
12
(.47)
3.5
(.14)
16
(.63)
22
(.87)
8
(.31)
8
(.31)
12
(.47)
3.5
(.14)
20
(.79)
15
(.59)
9
(.35)
12
(.47)
18
(.71)
5
(.20)
20
(.79)
25
(.98)
9
(.35)
12
(.47)
18
(.71)
5
(.20)
25
(.98)
15
(.59)
9
(.35)
12
(.47)
18
(.71)
5
(.20)
25
(.98)
25
(.98)
9
(.35)
12
(.47)
18
(.71)
5
(.20)