Cannulated Cemented Augmented Pedical Screws Specification - Cannulated Ce Mented Augmented Pedical Screws. 1.Should Allow Cementaugmentation Using Mis Cannu Lated Screw 2. Cortical Fix Fenestrated Screws With 1.6 & 1.75 Mm Differential Fenestrati Ons, 3. 5.0 Mm X 50.0 Mm With, Innie [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]