Ohio Rod Products offers long length fasteners and small diameter fasteners. Ohio Rod Products, part of the Elgin Fastener Group. Long length, small diameter headed and threaded industrial fasteners from Ohio Rod.
Tel: 812-689-6565
E-mail: info@ohiorod.com
www.ohiorod.com

Suggested Hole Sizes for Die Casting Screws

Hole sizes for die casting screws from Ohio Rod.

The minimum length of thread engagement should be equal to twice the diameter of the screw. The hole diameter, to ensure optimum preformance, should provide for 65% to 75% thread engagement.
Screw
Size
Hole Diameter as
Cast Std. Taper
F


Hole
Dia.
as
Drilled
L

Length
of Thread
Engage-
ment
H



Boss
Dia.
Max.
J
Distance
to Edge
for no
Measureable
Distortion - Min.
A - Top
B - Bottom
Max.
Min.
Max.
Min.
M2 x 0.40
1.91
1.83
1.81
1.73
1.81
4.00
3.32
1.04
2-56
.081
.078
.077
.074
.077
.172
.197
.046
M2.5x0.45
2.39
2.31
2.28
2.20
2.28
5.00
4.15
0.55
3-48
.093
.090
.088
.085
.088
.198
.208
.054
M3x0.5
2.90
2.82
2.76
2.68
2.76
6.00
4.98
0.61
5-40
.118
.115
.112
.109
.112
.250
.232
.065
M3.5x0.6
3.31
3.23
3.21
3.13
3.21
7.00
5.81
0.74
6-32
.128
.125
.122
.119
.122
.276
.242
.081
M4x0.7
3.82
3.74
3.64
3.56
3.64
8.0
6.64
0.86
8-32
.155
.152
.148
.145
.148
.328
.272
.081
M4.5x0.75
4.31
4.23
4.11
4.03
4.11
9.00
7.47
0.92
10-24
.177
.174
.168
.165
.168
.380
.315
.108
10-32
.182
.179
.174
.171
.174
.380
.315
.081
M5x0.8
4.8
4.72
4.58
4.50
4.58
10.00
8.30
.098
12-24
.203
.200
.194
.191
.194
.432
.359
.108
M6x1.0
5.75
5.66
5.48
5.40
5.48
12.00
9.96
1.23
M6.3x1.0
6.05
5.97
5.78
5.70
5.78
13.00
10.46
1.23
1/4-20
.235
.232
.224
.221
.224
.500
.415
.130
M7x1.0
6.78
6.70
6.48
6.40
6.48
14.00
11.62
1.23
5/16-18
.267
.294
.284
.281
.284
.625
.519
.144
M8x1.25
7.69
7.61
7.32
7.27
7.35
16.00
13.28
1.53
3/8-16
.359
.356
.343
.340
.343
.750
.623
.162
M10x1.5
9.64
9.56
9.22
9.14
9.22
20.00
16.60
1.84
7/16-14
.419
.416
.400
.397
.400
.875
.726
.186
M12x1.75
11.59
11.51
11.09
11.01
11.09
24.00
19.92
2.15
1/2-13
.481
.478
.460
.457
.460
1.00
.830
.200

Torque Tensioning | Screw Point Types | Pilot Hole Sizes | Bolt & Screw Head Types
Weights per Thousand | Unified External Screw Threads | Rod & Bolt Diameters
Metric Conversions | Hole Sizes for Die Casting | Material Strength | Drive Tool Sizes
Hardness Conversions

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Ohio Rod Products Ohio Rod Products
1415 S. Benham Road, Versailles, IN 47042-0416
Tel. 812-689-6565  •  Fax 812-689-6635
E-mail: info@ohiorod.com
www.ohiorod.com

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