JIS Serial NMB Serial d D B Size (in) Weight (g)
R2 R2zz 0.125 0.375 0.156 0.125*0.375*0.156 1.04
R155 RI-5532zz 0.156 0.313 0.109 0.156*0.313*0.109 0.51
R156 RI-5632zz 0.188 0.313 0.109 0.188*0.313*0.109 0.4
R166 RI-6632zz 0.188 0.375 0.125 0.188*0.375*0.125 0.81
R3 R-3zz 0.188 0.5 0.156 0.188*0.5*0.156 2.21
R168 RI-614zz 0.25 0.375 0.125 0.25*0.375*0.125 0.57
R188 RI-814zz 0.25 0.5 0.125 0.25*0.5*0.125 1.6
R4 R-4zz 0.25 0.625 0.196 0.25*0.625*0.196 4.46
R1810 RI-8516zz 0.313 0.5 0.156 0.313*0.5*0.156 1.39
R6 RI-1438zz 0.375 0.875 0.219 0.375*0.875*0.219 9.02
R8 RI-1812zz 0.5 1.125 0.25 0.5*1.125*0.25 11.6
R10 R-10zz 0.625 1.375 0.281 0.625*1.375*0.281 23.5
R12 R-12zz 0.75 1.625 0.313 0.75*1.625*0.313 53.1
R14 R-14zz 0.875 1.875 0.375 0.875*1.875*0.375 78
R16 R-16zz 1 2 0.375 1*2*0.375 87
R18 R-18zz 1.125 2.125 0.375 1.125*2.125*0.375 91
R20 R-20zz 1.25 2.25 0.375 1.25*2.25*0.375 102
R22 R-22zz 1.375 2.5 0.438 1.375*2.5*0.438 105
R24 R-24zz 1.5 2.625 0.438 1.5*2.625*0.438 140