Note 1): L, L1 dimension is the minimum value, the + is not specified.
Note 2) Dimensions: Lb is, (M 2.4M 2.0M 〜 Maximum: Minimum nominal bolt diameter)
　　　　(minimum value on the joint performance is not specified)
　　　　With R of diameter, 17mm pitch to be applied to the rebar in the following referred to dock.
3) Note: The dimensions of the SD490 is the appendix.
4) Note: The dimensions are S, (M 1M: Minimum and higher) nominal diameter of the bolt.