| SKU | Info/Size |
| 3421-3885 | Thread:1/4"-20; Hex:7/16; Height:7/32 |
| 3421-3893 | Thread:5/16"-18; Hex:1/2; Height:17/64 |
| 3421-3901 | Thread:3/8"-16; Hex:9/16; Height:21/64 |
| 3421-3919 | Thread:1/2"-13; Hex:3/4; Height:7/16 |
| 3421-3927 | Thread:5/8"-11; Hex:15/16; Height:35/64 |
| 3421-3935 | Thread:3/4"-10; Hex:1-1/8; Height:41/64 |
| 3421-3943 | Thread:7/8"-9; Hex:1-5/16; Height:3/4 |
| 3421-3950 | Thread:1"-8; Hex:1-1/2; Height:55/64 |