| SKU | Info/Size |
| 3900-1181 | Thread:1/4"-20; Hex:1/2; Height:5/8 |
| 3900-1183 | Thread:5/16"-18; Hex:9/16; Height:7/8 |
| 3900-1185 | Thread:3/8"-16; Hex:11/16; Height:1 |
| 3900-1187 | Thread:1/2"-13; Hex:7/8; Height:1-1/4 |
| 3900-1189 | Thread:5/8"-11; Hex:1-1/16; Height:1-3/4 |
| 3900-1191 | Thread:3/4"-10; Hex:1-1/4; Height:1-7/8 |
| 3900-1193 | Thread:7/8"-9; Hex:1-7/16; Height:2-1/4 |
| 3900-1195 | Thread:1"-8; Hex:1-5/8; Height:2-1/2 |