●Set in the bolt with an original setting technology of a butterfly part which uses the heading butterfly nut technology.●Guaranteed torque conforms to JIS and it has sufficient strength as a screw to be tightened by hand.●Nominal Diameter (d x L):M3 x 8●Blade Width D (mm):17●Blade Height H (mm):9.2●Butterfly/Screw: SUSXM7
