12mm-1.25 Zinc Plated Class 8 Steel Extra Fine Thread Left Hand Nuts (8 pcs.)

Diameter: 12mm
Diameter 2: 21mm
Thickness: 9.8mm
Material: Steel
Finish: Blue
Driver Type: #19 Wrench
Thread Size: 1.25mm (Extra Fine)
Hardness: Class 8
Style: Left Hand Thread
Type: Hex Nut
Specifications: DIN 934

Box of 8.

Hex nuts are used to secure and fasten the threaded portion of most machine screws and bolts.