Dimensions MaterialStainless Steel Amount of Clins4 Internal thread1-1/2-6 External thread1-7/8-12 Shear Engagementcontact us IN2 Length (L)2 Locking Depth (Z)n/a Installation Dimensions Tap Drill D11-13/16 Countersink D31.89 Thread D21-7/8-12 Min. Depth Tcontact us Removal Dimensions Drill Diameter1-23/32 Drill Depthn/a Keenserts ® is a registered brand name from Note: This Clinserts ® 73247 is also available in starter kit with installation tool and refill kit