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Sport BH 50% YAK55M

For my wing bolts I reversed engineered them with a standard 1/4 x 20 bolt, a castellated nut and a safety pin. I used one bolt as a guide as to how long the others needed to be by cutting off the head and screwing into the wing mounted to the fuselage. Then installed a washer and the nut. I made a mark on the bolt with a sharpie for the hole to drill out for the safety pin. Removed the hardware, applied some 20 min. epoxy to the bolt and screwed back into the wing. Installed the wing back onto the fuselage and set the depth of the hole to the nut and installed pin.

Cost,,, umm, about a dollar a hole :)
 

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