1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing

Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing

Ktehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components

SHKI 20 Pcs 608 2RS Ball Bearings – Bearing Steel and Double Rubber Sealed Miniature Deep Groove Ball Bearings (8mm x 22mm x 7mm) (608 2RS)