M3 (3mm) A2 Stainless Steel Hexagon Thin / Half Nuts DIN 439
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M3 x 0.5mm Pitch (3mm thread diameter) Hexagon Thin Nuts. Manufactured from A2 304 Stainless Steel to DIN 439 / ISO 4035. Hex Thin Nuts, also referred to as Half Nuts, Lock Nuts or Jam nuts. Sometimes mistaken for nyloc lock nuts, please note that these do not include a nylon insert. Tightened by a spanner or hex socket, mostly used on their own with a washer or can be doubled up to produce a more secure connection. Manufactured from A2 Stainless Steel these offer good corrosion resistance and are almost non magnetic.