M5 Thick Square Nuts (DIN 557) - A2 Stainless Steel Square Nuts are ideal for use in blind locations as their simple geometric shape makes it very easy to grip for both fastening and release. The Square Nuts shape also provides protection from repetitive use as its angular corners resist being rounded off by a wrench. Use Square Nuts with a washer for the most effective use of this product. A Flat Washer will provide protection from the Square Nuts edges as well as providing a more secure fixture and resistance to loosening. These Square Nuts are made from A2 stainless steel which provides corrosion and oxidation resistance. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M5 Thick Square Nuts (DIN 557) - A2 Stainless Steel