If the overall length of the base is 2" (51 mm) or less, the base will be drilled and tapped all the way through. If over 2" (51 mm), the base will be drilled and tapped at a depth of 1" (25.4 mm) on each end.For less than 3/4" (19 mm) diameter, drill and tap for 10-24 screw thread
The thread sizes for Custom Caps and Bases are:
For 3/4" (19 mm) to less than 1-1/4" (32 mm) square or diameter, drill and tap for 1/4-20 screw thread
For 1-1/4" (32 mm) to less than 1-1/2" (38 mm) square or diameter, drill and tap for 5/16-18 screw thread
For 1-1/2" (38 mm) diameter or greater, drill and tap for 3/8-16 screw thread
CRL Standoff Systems offer a complete range of mounting accessories that you can order in any quantity necessary for your project. For installation techniques or design assistance using CRL Standoffs, contact For more information contact CRL Commercial Products Technical Sales Department.