The 1/4" through-hole can be used as-is with nut and bolt for universal mounting

You get four of these trick rocker caps with your purchase

#HHC-685 3/8-16 x 2-1/4 length Chrome Hex Head Bolt - 10 Pack

This oil filter adapter accepts a Harley oil filter (not included) OEM #63782-80

Knuckleheads

Bungee Cord Mount - Single - Stainless Vendor_Colony Machine- Lowbrow The 1/4" through-hole can beStainless steel. Sold per pair. Made in the USA. Bungee Cord Mounts from Lowbrow Customs are made from 316 stainless steel and install in moments. Low profile and unobtrusive, when not in use they fade from view. A popular mounting location is on fender struts, using the . 34" diameter mounting hole. The bungee strap hole works with bungees of all types, including metal or plastic hook, or standard nylon rope or paracord. Stainless steel ensures that