Graph Tech - TUSQ XL Slotted Guitar Nut - 3/16" Thick - Black - PT-1728-00 Play aggressive, shred or bend strings without worry! Lightweight & Highly rigid material for optimum vibration transfer. Length: 1-23/32 (43.43mm) Width: 3/16 (4.88mm) Height: 11/32 (8.41mm) - E to E Spacing: 1-3/8 (35.28mm) - Model: PT-1728-00