FreeCAD 1.0: Build Anything: The Essential Beginner's Practical Guide to 3D CAD

M4 Rivet Nuts Zinc Plated Carbon Steel Threaded Insert Nut Nutsert Rivnuts, 100Pcs

uxcell 26Pcs Multi-Grip Rivet Nut, M4 Flat Head Carbon Steel Pre-Bulbed Shank Threaded Insert Nut with Zinc Plated Finish

uxcell M4 Rivet Nuts Carbon Steel Zinc-Plated Knurled Flat Head Threaded Insert Nut Black 20Pcs

uxcell M4 304 Stainless Steel Rivet Nuts Flat Head Insert 50 Pcs

Aluminum Oval Head Semi Tubular Rivets M2 M2.5 M3 M4 M5 M6 (M4 x 6mm,500)

QuarkMRO - 304 Stainless Steel Oval Head Semi Tubular Rivets M2 M2.5 M3 M4 (M3 x 7mm,50)

XAOLIUZi 50pcs M1.5 M1.7 M2 M2.5 GB873 304 Stainless Steel Round Flat Truss Oval Head Half Semi Hollow Shank Rivet Screw(3mm,M1.5)

uxcell 100 Pcs 4mm x 6mm Aluminum Flat Head Semi-Tubular Rivets Silver Tone