We recommend 1/4" drill bit for the through hole and a 31/64" or 1/2" forstener bit or brad point bit to create a counter sink hole for the head of the 3/8" machine screw. See in May we also suggest for the 1/2" diameter plug, #Z3466, to cover the hole over the head of the machine screw when installing a teak handle. Sorry, we don't have any plugs for the marine plastic handles.... yet.

• 1/4-20 x 3" pan head screw (2ea)
• 1/4" x 1-1/4" fender washer (2ea)
• 1/4" lock washer (2ea)
• 1/4-20 hex nut (2ea)
• 1/4-20 nut cap (2ea)