CHICIRIS Hex Socket Screws, Hex Socket Cap Cap Head Screw Set, 4-50mm Alloy Carbon Steel for Home and Office Appliance Communication Equipment(M3*50mm(Partially Threaded), 24pcs): Amazon.com: Industrial & Scientific
Amazon.com: uxcell M3x50mm 0.5mm Pitch Bolts Socket Cap Head Hex Key Screws 20pcs : Industrial & Scientific
Amazon.com : TTArtisan 50mm F0.95 Lens Large Aperture Manual Focus for Leica M Mount Camera Leica M-M, M240, M3, M6, M7, M8, M9, M9p, M10 Camera Lens (Color Sliver) : Electronics