11mm x 0.75 Metric HSS Left hand Thread Tap M11 x 0.75mm Pitch [SN-T] | eBay
Sutton M202 Hand Tap - M - Bottoming Thread Size 11 mm x Pitch 1.5
2pcs M16 full thread screws 1.5mm fine pitch hollow 11mm ID through hole long bolts male screw galvanized 90mm-300mm Length - AliExpress Home Improvement
Seco Internal Snap-Tap® Thread Turning Insert 3 x 11mm Right 1.25-1.25 Thread Pitch