These pots are widely used for guitar tone and volume controls. Metric-sized pots are commonly used in imported guitars or those made in Asia. 6mm knurled split brass shaft fits a coarse-knurled (18-spline) knob. Compatible with stock knobs on modern Squier, Epiphone, Ibanez, ESP, and similar guitars made in China, Korea, or Japan. Metric size: Thread M8 x 0.8, thread height 10mm (3/8 inch). Aluminum construction with a 24mm (15/16 inch) diameter full-sized base. Standard solid design. Audio taper with standard +/-20% resistance tolerance. 500K-ohm pots are standard for humbuckers. A 250K pot provides a slightly warmer tone than a 500K and attenuates some high frequencies to ground. Color: Gold Material: Metal Package Contents: 4 x A500K Potentiometers Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.