Allparts EP-0055-000 Switchcraft No. 11 1/4" Mono Input Jack

All parts EP-0055-00 1/4" Switchcraft Jack

This Switchcraft #11 1/4" mono input jack is the industry standard. It's built to last and is suitable for most guitars. 
Specifications:

1-1/4"L x 3/4" at 95 grams
Required mounting hole diameter: 3/8” (9.53mm)
Thread: 3/8 x 32
Includes mounting nut and washer.