Qualfast: M5 Locknut N/M Insert High A4 Hexagon Lock Nuts Metric A4 Stainless Steel Prevailing Torque Type - Nylon Insert - High Type DIN 982 MPN: M5 Locknut N/M Insert High A4 Attributes: Box Quantity: 200 Driving Features: Hexagon Grade: 403 Leading Standard: DIN 982 Material: A4 Stainless A4 Stainless Nut Type: Nylon Insert Surface Treatment: Plain Thread: Metric Thread Direction: Right Thread Size: M5