Drill a 5/8" hole and drop your bung in and the flange holds it perfectly straight and in line

OEM# 56391-49

this motorcycle battery box features a hold down strap and double thickness baseplate for secure mounting and battery retention

Chrome plated OEM#43886-52 9/16" x 18 TPI nut and lockwasher used on 1952-1972 Harley-Davidson K

and the cable hole measures

Oil Filter for 1980-1985 Harley-Davidson Sportster and Big Twin Models - Black - OEM #63782-80 Vendor_Exactitude International Co Drill a 5/8" hole andDrag Specialties spin on oil filters are high quality, and available for many Harley Davidson models. Replaces OEM# 63782 80. See Additional Information tab below for fitment.