Photo 1 of Taiss 450PCS M3 M4 Screw Kit,Hex Socket Head Cap Screws Assortment with Nuts and Washers M3?M4 x 6/8/12/16/20mm,12.9 Grade Alloy Steel Black Small Metric Screws,M3 M4 Bolts for 3D Printing

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Photo 1 of Taiss 450PCS M3 M4 Screw Kit,Hex Socket Head Cap Screws Assortment with Nuts and Washers M3?M4 x 6/8/12/16/20mm,12.9 Grade Alloy Steel Black Small Metric Screws,M3 M4 Bolts for 3D PrintingPhoto 2 of Taiss 450PCS M3 M4 Screw Kit,Hex Socket Head Cap Screws Assortment with Nuts and Washers M3?M4 x 6/8/12/16/20mm,12.9 Grade Alloy Steel Black Small Metric Screws,M3 M4 Bolts for 3D Printing