#SHC-924 5/16-24 x 2-1/4 length Chrome Socket Head Allen Bolt - 10 Pack

We've mounted it on a precision billet camchest cover

34062-52 cam follower

though there is plenty of material to drill it out to 1/2 inch if needed

Rear Chain Adjuster for 3/4 inch Axle - Universal Motorcycle or Custom Hardtail Use Outside Diameter_2.187 #SHC-924 5/16-24 x 2-1/4 lengthThese rear axle chain adjusters are based on the stock Harley Davidson adjusters, OEM #9020 2, found on K Model bikes and Ironhead Sportsters 1952 1980. The difference is these are made for use with a 3 4 inch rear axle with 5 16 24 TPI threads . These are for use on custom built motorcycles, or for Ironhead Sportsters running different rear wheels. Cadmium plated. Includes two axle adjusters and four nuts.