10mm x 1.25mm black aluminum double banjo bolt with 3 copper crush washers. This is the standard sizing that fits on Honda's and many other Japanese motorcycles including Suzuki, Kawasaki, Yamaha. It also fits some BMW models. It fits Nissin calipers and any other calipers commonly used on Japanese bikes.

Dimensions:

Hex Head: 14mm
Length: 30.5mm
Overall Length: 35mm
Thread: M10
Thread Pitch: 1.25mm