Standard Tap and Drill Sizes
Size
Thread
Drill Size
1/4"
20
7
1/4"
28
3
5/16"
18
F
5/16"
24
I
3/8"
16
5/16"
3/8"
24
21/64"
7/16"
14
3/8"
7/16"
20
25/64"
1/2"
13
27/64"
1/2"
20
29/64"
9/16"
12
31/64"
9/16"
18
33/64"
5/8"
11
17/32"
5/8"
18
37/64"
3/4"
10
21/32"
3/4"
16
11/16"
7/8"
9
49/64"
7/8"
14
13/16"
1"
8
7/8"
Steel Sheet
Gauge
Thickness
Weight/Sq.Ft
11
0.125
5.000
12
0.105
4.370
13
0.090
3.750
14
0.075
3.120
18
0.048
2.000
20
0.036
1.500
22
0.030
1.250
24
0.024
1.000
26
0.018
0.750
28
0.015
0.625
Aluminum Sheet
Thickness
Weight/Sq.Ft
0.020
0.260
0.024
0.310
0.032
0.460
0.040
0.540
0.050
0.680
0.063
0.880
0.080
1.125
0.090
1.300
0.125
1.800
Weight per Gallon
Item
Weight Lbs.
Water
8.333
Fuel
6.042
Oil
7.500
Dry Bolt Torque
Coarse Thread Grade 5
Size
Foot Lbs.
1/4"
10
5/16"
19
3/8"
33
7/16"
54
1/2"
78
9/16"
114
5/8"
154
3/4"
257
AN Wench Conversion
AN Size
Wrench Size
-4
9/16"
-6
11/16"
-8
7/8"
-10
1"
-12
1-1/4"
-16
1-1/2"
-20
1-13/16"
Other Item
Wrench Size
7/8" Stab Bar
1-5/16"
1" Jam Nut
1-1/2"
1/2" Hood Pin
3/4"
3/4" Trailing Arm
1-1/8"
5/8" Tie Rod
15/16"
Round Steel Tubing
O.D.
Wall
Wt./ Ft.
1"
0.049
0.498
1"
0.065
0.649
1"
0.095
0.918
1"
0.120
1.128
1-1/4"
0.049
0.629
1-1/4"
0.065
0.823
1-1/4"
0.095
1.172
1-1/4"
0.120
1.448
1-1/2"
0.049
0.759
1-1/2"
0.065
0.996
1-1/2"
0.095
1.426
1-1/2"
0.120
1.769
1-3/4"
0.049
0.890
1-3/4"
0.065
1.170
1-3/4"
0.095
1.679
1-3/4"
0.120
2.089
Steel Tubing
O.D.
Wall
Wt./Ft.
1" x1"
0.065
0.827
1" x1"
0.083
1.035
1" x1"
0.120
1.436
1-1/2"x1-1/2"
0.065
1.268
1-1/2"x1-1/2"
0.083
1.599
1-1/2"x1-1/2"
0.095
1.815
1-1/2"x1-1/2"
0.120
2.252
1-3/4"x1-3/4"
0.065
1.490
1-3/4"x1-3/4"
0.083
1.882
1-3/4"x1-3/4"
0.095
2.168
1-3/4"x1-3/4"
0.120
2.660
2" x 2"
0.065
1.710
2" x 2"
0.083
2.164
2" x 2"
0.095
2.461
2" x 2"
0.120
3.050
2" x 3"
0.065
2.152
2" x 3"
0.083
2.728
2" x 3"
0.095
3.544
2" x 3"
0.120
3.900
Useful Equivalents
Length
Foot
=
30.48
Centimeters
Inch
=
2.54
Centimeters
Meter
=
3.281
Feet
Meter
=
39.37
Inches
