5T Captive ScrewsHeat sink series • Maximize heat transfer from components to heatsink • Positive fastening under shock and vibration • Fastener allows for thermal expansion of components under a set preload Material and Finish Screw: Hardened carbon steel, zinc plate, chromate plus sealer Spring: 300 series stainless steel, passivated Ferrule: Aluminum, natural Performance Details M3/4-40 Recommended Torque: 0.6 N-m (5.3 in-lbf) M3.5/6-32 Recommended Torque: 1.08 N-m (9.6 in-lbf) Installation Notes 1. Drill then countersink according to the required dimensions. 2. Insert screw assembly into prepared hole in panel. Place back-up tool as shown. 3. Place work under press, center tool over screw thread and flare ferrule into countersink in panel. Recommended load 2200 N. Notes Load applied by each screw: [3.4 (.13) * K] +7.57 N (1.7 lb) Standard K value shown in the table. Load at given deflection *shown in the fastened position above. Part Number See table Unfastened Fastened Thread Size Thread Size Spring Rate K N/mm (lbf/in) Dimensions in millimeters (inch) unless otherwise stated southcor CONNECT • CREATE • INNOVATE