Material // Steel
Dimensions // diameter: 12mm, pitch: 1.25, Height: 7mm (three kinds), diagonal: 21.9mm
Surface treatment // trivalent plating specification // three types

JB type floor frame hook H = for 100 , JB type floor frame hook H = 75 You can use it as a nut. Because you use a double nut, to the one 1 JB type floor frame hook, nut requires four.
※ three types nut is thin when compared with the general kind of nut.

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