Two screws holding the saddle bag lock.

[danh600]

There are two screws holding the lock cylinder on the saddle bag.
One is lost and the other is loose. They have a weird head on them. I don't have that tool. I want to replace both of them with a more common screw.
Anyone know the size of the screw?

[bill lumberg]

Sorry. I don’t know. I bought a set of those bits from autozone for $5 and loctited them. And repeated for reasons obvious to you and I. In your shoes, I’d pull the lock and remaining screw and head to ace hardware. And spend 45 minutes trying to narrow that bastard down....

[FJRoss]

I replaced mine with standard Allen socket but don't recall the size. As Bill suggests, take the remaining one to your local hardware store for replacements for all of them. Pick up some blue Loctite while you're there. Never understood why Yamaha felt it was necessary to put security screws on the lock. You can't even get to it unless it is already unlocked!

[FJRPittsburgh]

I believe it's a security Torx 10. You can buy one at Harbor Freight cheap. It's a Torx screw with a little nipple in the middle. The Torx driver has a little dimple in the middle of it to match up with the screw head. Get some Locktite on those screws before you lose them.

[raYzerman]

Size is M3 x 10mm Originals were T10 security Torx which you might be able to remove with a small flat screwdriver. Replacements can be any head, once loctited you'll likely never touch them again.

[ionbeam]

...Never understood why Yamaha felt it was necessary to put security screws on the lock...

[speculation] In industry, they sometimes use the 'security' screws because the center pin keeps the splines of the bit centered and engaged in the screw head to prevent stripping or cam-out when tightening. With the center hole of the bit over the pin in the screw head it must stay aligned. With the tiny fastener in an awkward position it *may* be used to make assembly easier. Dunno if the 'security' is the theft type or 'ensure' engagement type. [/speculation]

[FJRoss]

...Never understood why Yamaha felt it was necessary to put security screws on the lock...

[speculation] In industry, they sometimes use the 'security' screws because the center pin keeps the splines of the bit centered and engaged in the screw head to prevent stripping or cam-out when tightening. With the center hole of the bit over the pin in the screw head it must stay aligned. With the tiny fastener in an awkward position it *may* be used to make assembly easier. Dunno if the 'security' is the theft type or 'ensure' engagement type. [/speculation]

You may be right but I thought that the whole point of going to Torx in the first place was for the "secure engagement". - that plus the fact that Phillips screws suck for any and all applications. Allen are almost as bad for relatively high torque applications in small sizes - especially when manufactured with low precision using butter-soft alloys. OK for larger sizes. I prefer Robertsons to any of the above for many applications.

[mcatrophy]

Screws should have Loctite on them, responsibility is with the dealer who fitted the locks to the side cases (not Yamaha directly).

Instructions:
Click on image for larger view)


You should also have protective clear stickers around the frame mount points (supplied with the side cases).

All the fitting instructions

[escapefjrtist]

Replaced my 15s with stainless M3 X 8 with either phillips or JIS head. Dab of blue loctite and haven't touched them since install!

~G

[danh600]

Damn, nobody in town has m3x11. Found some longer ones. I might be able to use a washer or two to make those work.

If that doesn't work I can get 50 of them off Amazon by Wednesday for like $7. Cheaper than driving to the city to keep looking.

If I get 50 off Amazon I have enough for the whole class!!!!!!!!

[FJR Turbine]

Damn, nobody in town has m3x11.

Usually people have that magic special fastener place in or near their city. Mine happens to be Tacoma Screw and Fastener. They do have an online version with those M3...even in Stainless at a reasonable price..for 100.

http://www.tacomascrew.com/results#!Fas ... less-Steel

[extrememarine]

I have an Ace Hardware near by that is my go-to for metric fasteners. This one has a pretty extensive metric section, but other Ace stores do not.

Damn, nobody in town has m3x11. Found some longer ones. I might be able to use a washer or two to make those work.

If that doesn't work I can get 50 of them off Amazon by Wednesday for like $7. Cheaper than driving to the city to keep looking.

If I get 50 off Amazon I have enough for the whole class!!!!!!!!

Sent from my SM-G960U using Tapatalk

[danh600]

Actually a little longer screw will work. Shimming it up with washers does not. No clearance on top but the longer screw go right in without clearance problem.

Blue lock tight and all works fine.

[FJRoss]

Dremel with a cutoff wheel is pretty good to fix a machine screw that is too long.

[danh600]

Fix one side back then.

Didn't get around to buying the torx security to take the other side off.

Luckily it let loose while I stopped on a day ride.

Cylinder came off with the key in my hand.

Hardware store two blocks away. They didn't have small metric screw but they had tape!!!

Got home and repaired it with the screws I had and also blue locktite.

[rbentnail]

Back in 2007 when my bike was new I applied blue locktight to these screws. 10 yrs later I found one loose. Right now, go to the calendar in your phone and make yourself an appt to re-check them every 6 or 7 yrs. You'll be happy you did.