320Mpa 240Mpa 剪力a －按毛截面考虑 Shear-a(Using gross area)剪力b －按净截面考虑 Shear-b(Using net area)
不锈钢螺栓表( A2-70 S/S Bolt))
允许拉应力(Allowable tensile strength)允许剪应力(Allowable shear strength)
