Catalog no. 011.1911.03 to 011.1911.08 Screw, 3.5mm & 4.0mm Material Stainless steel 316L,Titanium Holes 3,4,5,6,7,8 Proximal Screw Locking Screw 4.0mm Screw Length 20mm to 70mm (Diff. 5.0mm) Distal Screw Locking Screw 3.5mm Screw Length 10mm to 40mm(Diff. 2.0mm)