M12x1.75mm 304 Stainless Steel Nylock Nylon Insert Hex Lock Nuts 10pcs Product Name: Nylon Lock Nut; Material: 304 Stainless Steel Weight: 146g; Package Content: 10 x Nylon Lock Nuts Thread Dia: M12; Main Color: Silver Tone Height: 12mm/0.47"; Pitch: 1.75mm Width Across Flats: 19mm/0.75"