| ITEM | OPENING SIZE | TOTAL LENGTH (A) | OUTSIDE DIAMETER (B1) | OUTSIDE DIAMETER (B2) | HEAD THICKNESS (C) |
|---|---|---|---|---|---|
| 1181M | 7 x 8 mm | 4-1/4" | 21/32" | 19/32" | 3/8" |
| 1182M | 9 x 10 mm | 5-7/16" | 7/8" | 25/32" | 3/8" |
| 1183M | 11 x 12 mm | 6-3/4" | 1-5/32" | 1" | 1/2" |
| 1184M | 13 x 14 mm | 6-3/4" | 1-5/32" | 1" | 1/2" |
| 1185M | 15 x 17 mm | 8" | 1-7/16" | 1-9/32" | 1/2" |
| 1186M | 16 x 18 mm | 8" | 1-7/16" | 1-9/32" | 1/2" |
| 1187M | 19 x 21 mm | 9-1/8" | 1-9/16" | 1-13/32" | 1/2" |