Paramedrau Technegol
| Deunydd: | Corff alwminiwm / dur |
| Gorffen Arwyneb: | Pwyleg / sinc ar blatiau |
| Diamedr: | 3.2mm, 4.0mm, 4.8mm, 6.4mm, (1/8, 5/32, 3/16,1/4) |
| Wedi'i addasu: | Wedi'i addasu |
| Safon: | IFI-114 a DIN 7337, GB, Ansafonol |







