A four-sided, internally threaded fastener with a flat bottom side and washer-crowned top.


Designed for use with square bolts.

Unsure which fastener is best for your job? Call us at 866-501-9504 and one of our trained technicians will help you find the right metric fasteners for your application.

M2.5X.45 Square Nut CL.4 Steel Zinc DIN562SKU: # M53069Quantity Available: 1146
M5X.8 Square Nut Steel 4 Zinc DIN562 (Rohs Compliant)SKU: # M53065Quantity Available: 9839
M5X.8 Square Nut Steel 8 Yellow Zinc DIN562SKU: # M53064Quantity Available: 0

Out-Of-Stock, inventory will be replenished shortly. Please email sales@mrmetric.com for urgent requirement.