AISI THICKNESS GAUGE EQUIVALENTS IN NOMINAL DIMENSIONS
|
|||
---|---|---|---|
GAUGE |
APPROXIMATE DIMENSTIONS
(INCHES) |
DECIMALS (INCHES)
|
|
UNCOATED STEEL |
GALVANIZED STEEL (G60) | ||
3 | 1/4 | 0.239 | – – – |
7 | 3/16 | 0.1793 | – – – |
10 | 9/64 | 0.1345 | 0.1382 |
11 | 1/8 | 0.1196 | 0.1233 |
12 | 7/64 | 0.1046 | 0.1084 |
13 | 3/32 | 0.0897 | 0.934 |
14 | 5/64 | 0.0747 | 0.0785 |
16 | 1/16 | 0.0598 | 0.0635 |
18 | 3/64 | 0.0478 | 0.0516 |
20 | 1/32 | 0.0359 | 0.0396 |
22 | 1/32 | 0.0299 | 0.0336 |
25 | 1/32 | 0.0209 | 0.0247 |
Footnote: Actual steel dimensions will vary from nominal dimensions according to industry tolerances of 0.005±
ALLOWABLE SHEAR LOAD ADJUSTMENT
FACTOR FOR NAILS & SCREWS |
||
---|---|---|
WOOD SPECIES
(GROUP II) |
SPECIFIC GRAVITY (G)
|
ADJUSTMENT FACTOR
|
Southern Yellow PIne
|
0.55
|
1
|
Douglas
Fir-Larch (N) |
0.50
|
0.927
|
Douglas Fir (S)
Hem-Fir |
0.46
|
0.86
|
Spruce-Pine-Fir
|
0.42
|
0.80
|
FOOTNOTE: Allowable loads must be adjusted according to the applicable wood species. Design loads are based on southern Yellow Pine wood species with a specific greavity of 0.55.
SLOPE CONVERSION TABLE
|
|
---|---|
RISE/ RUN (IN)
|
SLOPE (DEGREES)
|
0/12
|
FLAT
|
1/12
|
4.75
|
2/12
|
9.50
|
3/12
|
14.00
|
4/12
|
18.4
|
5/12
|
22.60
|
6/12
|
26.6
|
7/12
|
30.25
|
8/12
|
33.70
|
9/12
|
36.87
|
10/12
|
39.81
|
11/12
|
42.50
|
12/12
|
45.00
|
BOLT DIAMETER CONVERSION
|
|
---|---|
BOLT DIAMETER (IN)
|
METRIC (MM)
|
3/8
|
9.53
|
1/2
|
12.70
|
5/8
|
15.88
|
3/4
|
19.05
|
7/8
|
22.23
|
1
|
25.40
|
1 1/8
|
28.58
|
1 1/4
|
31.75
|
FOOTNOTE: All reference to bolts are structural
quality bolts equal to or better than ASTM Standard A307