Standard Locknut LLC
N Series Bearing Lock Nut - 2.157-18 in Thread Size, 2-31/32 in OD, N-11 NOS
A nice touch with this Isoflex NBU 15 is the smooth application from the tube.
STANDARD LOCKNUT N09 Locknuts Qty 10
A nice detail with Altronic is the corrosion-resistant coating on their metals.
STANDARD LOCKNUT N10 N-00 Series Locknut
The rounded corners includes rivets, adding a bit of weight to the overall feel.