Hex Lock Nuts - TOOGOO(R) M6 x 1mm 304 Stainless Steel Nylock Nylon Insert Hex Lock Nuts 50pcs Product Name: Nylon Lock Nut; Material: 304 Stainless Steel Thread Dia: M6; Main Color: Silver Tone Height: 6mm/0.24"; Pitch: 1mm Width Across Flats: 10mm/0.4"