Metric Size,
Bearing Lock Nuts
KM
TLT

TLT
 TLT
Specification
Information
Lock nut: Low carbon steel, plain finish,
DIN 981

Mainly utilized to secure bearings onto a shaft.
Additional sizes available upon request.
For our selection of hook spanner wrenches for use with these components, see Section 16 - Tools, particularly
DIN 1810A hook spanner wrenches with nose end.
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For CAD download instructions, click HERE

Dimensions in:

millimeters
(inches)
Part
Number
Thread
d
D1
D2
t
i
h
Use with
Washer
M10 x .75
10
 (.39)
18
 (.71)
13.5
 (.53)
4
 (.16)
3
 (.12)
2
(.08)
M12 x 1
12
 (.47)
22
 (.87)
17
 (.67)
4
 (.16)
3
 (.12)
2
(.08)
M15 x 1
15
 (.59)
25
 (.98)
21
 (.83)
5
 (.20)
4
 (.16)
2
(.08)
M17 x 1
17
 (.67)
28
 (1.10)
24
 (.94)
5
 (.20)
4
 (.16)
2
(.08)
M20 x 1
20
 (.79)
32
 (1.26)
26
 (1.02)
6
 (.24)
4
 (.16)
2
(.08)
M25 x 1.5
25
 (.98)
38
 (1.50)
32
 (1.26)
7
 (.28)
5
 (.20)
2
(.08)
M30 x 1.5
30
 (1.18)
45
 (1.77)
38
 (1.50)
7
 (.28)
5
 (.20)
2
(.08)
M35 x 1.5
35
 (.1.38)
52
 (2.05)
44
 (1.73)
8
 (.31)
5
 (.20)
2
(.08)
M40 x 1.5
40
 (1.57)
58
 (2.28)
50
 (1.97)
9
 (.35)
6
 (.24)
2.5
 (.10)
M45 x 1.5
45
 (1.77)
65
 (2.56)
56
 (2.20)
10
 (.39)
6
 (.24)
2.5
 (.10)
M50 x 1.5
50
 (1.97)
70
 (1.97)
61
 (2.40)
11
 (.43)
6
 (.24)
2.5
 (.10 )