<B>CL-1420-KS Carr Lane Manufacturing Key Inserts- Heavy Duty: Internal Thread 1/4-20 Review</b><P>http://tinyurl.com/lll4964 <P><P> CL-1420-KS Carr Lane Manufacturing Key Inserts- Heavy Duty: Internal Thread 1/4-20 <P>Int. Thread: 1/4-20<P>Ext. Thread: 7/16-14<P>Length: .37<P>Shear Engag. .284<P>