18-8 / 304 Stainless Steel Thin Jam Hex Nuts & Lock Nuts.

• These Low Profile Thin Jam Nuts and Locking Jam Nuts are Used for Several Purposes:
• The First is That it Can Fit Into Smaller Area or Clearance Where a Finish Nut Might Not Fit. Secondly, They Can be "Jammed" Against Another Nut in Order to Act as a Lock Method.
• Also Known as a Jam Nut, Locking Nut, and Locknut.
• 18-8 Stainless Steel Includes 303 & 304 Grades.
• Right Hand Thread, UNC