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Precision Ground Rod, 2 Helical Coolant Holes, 30° Helix
Metric Sizes 6mm to 20mm Diameter, h6 tolerance
Length 330mm
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Nominal
Size
D
Dimensions, mm
Description
TechMet Stock #
Diameter
Coolant
Hole
Diameter
Bolt
Circle
Pitch Length
Standard
Grade
Complementary
Grade
ØD
Ød
ØTK
Pitch
Tolerance (± 0.5°)
TMK-320
TMK-3020
6
6.000
0.70
2.60
32.65
+0.67, -0.65
6mm x 330mm H2 30D SBC PG
805101
805175
7
7.000
1.00
3.70
38.09
+0.78, -0.76
7mm x 330mm H2 30D SBC PG
805103
805176
8
8.000
1.00
4.00
43.53
+0.89, -0.86
8mm x 330mm H2 30D SBC PG
805104
805178
9
9.000
1.40
4.80
48.97
+1.00, -0.97
9mm x 330mm H2 30D SBC PG
805105
805179
10
10.000
1.40
4.80
54.41
+1.12, -1.08
10mm x 330mm H2 30D SBC PG
805106
805180
11
11.000
1.40
5.30
59.86
+1.22, -1.19
11mm x 330mm H2 30D SBC PG
805107
805181
12
12.000
1.40
6.25
65.30
+1.33, -1.30
12mm x 330mm H2 30D SBC PG
805108
805182
13
13.000
1.75
6.50
70.74
+1.45, -1.41
13mm x 330mm H2 30D SBC PG
805109
805183
14
14.000
1.75
7.10
76.18
+1.56, -1.51
14mm x 330mm H2 30D SBC PG
805110
805184
15
15.000
1.75
7.70
81.62
+1.67, -1.62
15mm x 330mm H2 30D SBC PG
805111
805185
16
16.000
1.75
8.30
87.06
+1.78, -1.73
16mm x 330mm H2 30D SBC PG
805112
805186
17
17.000
1.75
8.90
92.50
+1.90, -1.83
17mm x 330mm H2 30D SBC PG
805113
805187
18
18.000
2.00
9.55
97.95
+2.00, -1.95
18mm x 330mm H2 30D SBC PG
805114
805188
19
19.000
2.00
10.10
103.39
+2.11, -2.06
19mm x 330mm H2 30D SBC PG
805115
805189
20
20.000
2.00
10.40
108.83
+2.22, -2.16
20mm x 330mm H2 30D SBC PG
805116
805190

TOLERANCES, mm
Ordering Examples:
TOLERANCES, mm
Sizes, mm
ØD, h6
Length
Order by Description & Grade:
500 pcs 20mm x 330mm H2 SBC PG TMK-320

-OR-


Order by TechMet Stock #:
500 pcs 805116
Sizes, mm
Ød
ØTK
6
7 to 10
11 to 18
19 to 20
+0, -.008
+0, -.009
+0, -.011
+0, -.013
+5, -0
6
7 to 8
9 to 10
11 to 12
13 to 17
18 to 19
20
± 0.10
± 0.15
± 0.15
± 0.15
± 0.20
± 0.25
± 0.25
+0, -0.4
+0, -0.4
+0, -0.6
+0, -0.8
+0, -0.8
+0, -0.8
+0, -1.0

Grade
Selection
TMK-320
 First -choice micrograin grade, offering outstanding performance in a broad range of materials and  applications.
TMK-3020
 Ultrafine grain grade, offering increased hardness and wear resistance in more stable applications.