• Ideal for all nut and bolt applications 1/4" to 3/4" (6mm to 20mm). • Eliminates the need for stocking expensive lock nuts and lock washers. • Locks and seals while preventing parts from loosening due to vibration. • Protects threads from corrosion. • Removable with hand tools for easy disassembly. Suggested Applications: Valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs