Stainless steel 'U' bolts with two stainless steel fixing nuts and fixing plates.
Slim stainless steel 'U' bolts with two stainless steel fixing nuts and fixing plates. These 'U' bolts have no protrusions along the shaft and sit flush on the backing plate on to the boat.
| FX520 | FX520A | FX520B | FX520C | |
| Thread | M5 | M6 | M8 | M10 |
| Thread Length | 40mm | 45mm | 68mm | 78mm |
| Width Between Threads | 310mm | 30mm | 37mm | 41mm |
| Overall Height | 80mm | 90mm | 113mm | 130mm |
| Eye Diameter | 6mm | 8mm | 10mm | 12mm |
| Eye Width | 27mm | 27mm | 35mm | 39mm |
