Has anyone found alternate lengths of the OEM rotor bolts?
On my 07 Softail I changed front wheels and changed axle spacers to move RH .250" to center wheel, then added .250" spacer behind rotor to align with caliper. The rotor bolts are too short (5/16-18 x 7/8).
I've tried alternate types of bolts but the heads are too small or too big for the recessed flange holes of the rotor. The stock button head is larger diameter than standard bolts and fits snug in the hole to help center and maintain torque.
It seemed simple at first to find longer same style bolts. I didn't want to try washers on smaller head bolts and make balance worse or worry about loss of torque.
Thanks for any input. Sure would like to be riding instead of typing.

 

Disregard. I found out these stock bolts aren't made longer. I was hoping they were more common and used somewhere else in longer length. I used some flange bolts from bolts depot, cut them to length and ground the head to fit just right. Any other type I found that was long enough had half inch diameter head which was too small for a brake rotor.

 

are they grade 5 or grade 8? I used some grade 8 when I added a spacer, you can get covers to clean the look up.

 

They are grade 8, nice looking quality and came with threadlocker. I got both stainless and chrome and used the stainless along with caps. They fit just right and look better than the stock ones once I put the caps on them.

 

Try "Albany County Fasteners".
This a speciality fasteners manufacturer

pan head torx head , 5/16-18 x 1-1/4" length
318 stainless steel

Head diameter tolerance spec .615"-.564"
Measured an H-D rotor torx head bolt, head diameter measures, .600".

The Albany fastener will fit the rotor mounting hole recess

These fasteners can be ordered online

You ask for an alternate front rotor fastener that looks OEM, you have it now.

Grade 8 has greater yield strength than 18-8 stainless steel
But the fasteners are in shear with amble strength to handle the brake caliper torque
Load.
The aluminum hub threads are the weak link