need slightly longer screw

[gunsmoker]

I'm mounting a switch and a USB charging port on my bike.
I'm going to attach these things to a flat piece of stainless steel which I want to screw down above the clutch master cylinder reservoir,

so I need slightly longer versions of this screw.
So does anybody have any suggestions?

PS does anybody know the exact thread pitch for this factory screw?

 

[Josh_ST]

SCREW, FLAT (4X12) (90158-MT7-000) | MotoSport

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They show 4x12, so I'm guessing M4, 12mm long. An Ace hardware or a Menards would be my recommendation to find a suitable longer replacement locally.

 

[gunsmoker]

I bought a few of these from Ace Hardware, and a couple stainless steel nuts also.
(I will use the nuts as dies to clean up the damaged threads if I have to cut one of these screws to a custom length.)

We will see if they are the right thread pitch.
I'm going to try to install them later tonight.

 

[dduelin]

I don't have a pitch gauge but when I have a Q about a fastener I take one of the fasteners in question to the hardware store and use their gauge to determine size and pitch.

 

[Joeywhat]

Those are coarse thread, should be correct. No reason for them to be fine thread, that's the standard M4 thread pitch.

I would get allen head bolts if you're fixing things to the reservoir, for one they just look better and secondly you can get a little more torque on them without damaging anything.

 

[Mikedo]

Amazon is your friend.

Amazon.ca

 

[gunsmoker]

I have been working on my bike for over two weeks and not ridden it other than pushing it back and forward a couple feet at a time in the garage!
So I wanted to get this done, to ride a couple hours on Friday for a long lunch break and then again Saturday when I go to the Christian Motorcyclists Association breakfast meeting.

I'm glad Ace Hardware had the right screws .70 mm is the right spacing on the threads.
And 16mm length was perfect for my application. No trimming needed.

 

[Gus1300]

Show us your installation! (please)

 

[gunsmoker]

Pics.... give me a few days to see how I like these new switches, because I don't wanna post a pic of a "beta version" -- not if I'm going to come up with a new and improved version soon.