| Wilkinson Screw Gage - Wood Screws (Years of 1744 & 1798 & 1806) |
| (Oziel & David Wilkinson, Town of Nth. Providence, Rhode Island & Providence Plantations) |
| 00 gage | (2/0) | = | 0.04275 in.dia. shank |
| 0 ga. | (1/0) | = | 0.05600 in.dia. shank |
| 1 ga. | = | 0.06925 in.dia. shank |
| 2 ga. | = | 0.08250 in.dia. shank |
| 3 ga. | = | 0.09575 in.dia. shank |
| 4 ga. | = | 0.01090 in.dia. shank |
| 5 ga. | = | 0.12225 in.dia. shank |
| 6 ga. | = | 0.13550 in.dia. shank |
| 7 ga. | = | 0.14875 in.dia. shank |
| 8 ga. | = | 0.16200 in.dia. shank |
| 9 ga. | = | 0.17525 in.dia. shank |
| 10 ga. | = | 0.18850 in.dia. shank |
| 11 ga. | = | 0.20175 in.dia. shank |
| 12 ga. | = | 0.21500 in.dia. shank |
| 13 ga. | = | 0.22825 in.dia. shank |
| 14 ga. | = | 0.24150 in.dia. shank |
| 15 ga. | = | 0.25475 in.dia. shank |
| 16 ga. | = | 0.26800 in.dia. shank |
| 17 ga. | = | 0.28125 in.dia. shank |
| 18 ga. | = | 0.29450 in.dia. shank |
| 19 ga. | = | 0.30775 in.dia. shank |
| 20 ga. | = | 0.32100 in.dia. shank |
| 21 ga. | = | 0.33425 in.dia. shank |
| 22 ga. | = | 0.34750 in.dia. shank |
| 23 ga. | = | 0.36075 in.dia. shank |
| 24 ga. | = | 0.37400 in.dia. shank |
| 25 ga. | = | 0.38725 in.dia. shank |
| 26 ga. | = | 0.40050 in.dia. shank |
| 27 ga. | = | 0.41375 in.dia. shank |
| 28 ga. | = | 0.42700 in.dia. shank |
| 29 ga. | = | 0.44025 in.dia. shank |
| 30 ga. | = | 0.45350 in.dia. shank |
| • | ||
| WSG | = | Wilkinson Screw Gage |
| WSG no. | = | (shank dia. - 0.056'') ÷ 0.01325'' |
| ASG | = | American Screw Gage |
| ASG no. | = | (shank dia. - 0.060'') ÷ 0.01300'' |
| LEATHER SEALER'S OFFICE, Londonderry, Vt. | April 8th 1826 | Rory Ely Cole |
| next |
| previous |
| return to Contents |
| Copyright © MMII Rory Ely Cole |