Allen A.282 (grey) Boom & Traveller Eye for the Laser® See related items for fixing screw and captive nut. The Engineering Drawing for Allen A.282 can be found HERE Allen A.282 Fairlead Properties Material Acetal Inside Diameter 9 mm Fixing Hole Centres 24mm Fixing Hole Size 5 mm Overall Length 41 mm Overall Width 14.5 mm Overall Height 18 mm Weight 6 grams MPN A.282 Attaching eyes to a Laser/ILCA boom: Rivets are the standard/factory method of affix the plastic eye to the boom. The holes in the boom are 4.8mm 3/16" dia. but can enlarge due to corrosion etc. If the holes are in good condition then a new 4.8mm dia. rivet can be re-used. See this link for a complete list of rivets used on the Laser/ILCA - see HERE For a more secure method to affix the eye, it is suggested a M5 nut/washer and bolt is used - see blog article: HERE Laser® is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.