Tusk D-Flex Bar-End Clamp Handlebar Inserts

75mm long and a thread pitch of 1.25mm.

If you use the black rubber pieces included in the kit, they should fit any bars. I have never tried with twin wall bars, but they work perfect in my fatbars.

Yes, these will work with the Tusk T-10 7/8" bars. These have a rubber sleeve that can be removed to work with aluminum handlebars.

I am not sure what O.D this is but i have these on my flex bars now and they work great!

Yes, they will. You'll just have to remove the black plastic sleeve.

That fastener is a SOCKET FLAT HEAD SCREW M8 x 1.25 (thread pitch) 75 millimeters long. It is STEEL with zinc plating and has a 5 millimeter internal hex. The threads are 50 millimeters long. Possible Metric standards are DIN 7991/ISO10642.

These inserts will definitely work for you on 1 1/8" bar ends as well as 7/8" bar ends using the black rubber shield pictured I have used them on other brands of handguards also I always keep an extra set on hand

Loosen the bolt (don't take the bolt completely out), then it will all slide out .

Yes, the rubber piece is an addition to make them fit in 1 1/8 bars as well as 7/8 bars without.

Proposition 65, also known as the Safe Drinking Water and Toxic Enforcement Act of 1986, is a California law that requires businesses to warn Californians about chemicals that may cause cancer, birth defects, or other reproductive harm. Because of this every item will be labeled as such.