SCREW FASTENING INTERIOR FINISHING - English May 2021 | Page 10

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Thread selection
Recommended Installation RPM
Common Socket and Bit Sizes Screw Size
Diameter
Magnetic Nut Setter Size
RPM # 6 4000-5000 # 8 # 10 # 12 1 / 4 "
2500
1800
Phillips
Bit Size # 6 - 2 # 8 1 / 4 " 2 # 10 5 / 16 " 3 # 12 5 / 16 " 3 1 / 4 " 3 / 8 " 3
Decimal Equivalents for Fractions of an Inch
Fraction
Decimal Equivalent
1 / 64
0.015
1 / 32
0.031
3 / 64
0.046
1 / 16
0.062
5 / 64
0.078
3 / 32
0.093
7 / 64
0.109
1 / 8
0.125
9 / 64
0.140
5 / 32
0.156
11 / 64
0.171
3 / 16
0.187
13 / 64
0.203
7 / 32
0.218
15 / 64
0.234
1 / 4
0.250
5 / 16
0.313
Screw Diameter Equivalents
Screw Diameter
Decimal Equivalent
mm
# 6
0.138
3.5
# 7
0.151
3.9
# 8
0.164
4.2
# 10
0.190
4.8
# 12
0.216
5.5
# 14
0.242
6.3
1 / 4 "
0.250
6.4
10 Interior finishing screw – Technical manual – 04 / 22 www . hilti . com