The 093 U-adaptor allows blocks with 3/8 in (10 mm) posts to be attached to swivel bases or to other blocks with 3/8 in (10 mm) posts.
| Shackle pin Ø (mm) | 5 mm |
| Shackle pin Ø (in) | 3/16 in |
| Weight (g) | 13.6 g |
| Weight (oz) | 0.48 oz |
| A (mm) | 12 mm |
| A (in) | 1/2 in |
| B (mm) | 11 mm |
| B (in) | 7/16 in |
| Maximum working load (kg) | 567 kg |
| Maximum working load (lb) | 1250 lb |
| Breaking load (kg) | 1134 kg |
| Breaking load (lb) | 2500 lb |
