1Piece-5Pcs DIN466 SUS304 Stainless Steel Knurled Thumb Nut with Collar Blind/Through Hole M3-M10 3D Printers Parts Curtain Wall 1Piece-5Pcs DIN466 SUS304 Stainless Steel Knurled Thumb Nut with Collar Blind/Through Hole M3-M10 3D Printers Parts Curtain Wall. Sale price : $3.23 Category : Home Improvement