Part Number: 0408MPF188 (4-40x1/2 phillips flat machine ) Part Number: 0408MPF188B (Screw 4-40x1/2 phillips flat ma) Part Number: 0408MPF-B0 (No description) Part Number: 0408MPF-SS (No description) Part Number: 0408MPF-Z (Screw) Part Number: 0408MPL188 (Phillips fillister s) Part Number: 0408MPO (Screw machine phil o) Part Number: 0408MPP (No description) Part Number: 0408MPP188 (No description) Part Number: 0408MPP-B0 (No description) Part Number: 0408MPP-N (Screw) Part Number: 0408MPPSS (Sjs) Part Number: 0408MPP-SS-B0 (No description) Part Number: 0408MPPSS-SS (Sealscrw)