Product Details:

CRL Self-Tapping Machine Screws have special cross-cuts which allow them to tap their own threads in metal. They attach thin materials to substrates with pre-drilled holes, as with storm and screen window clips being attached to aluminum window frames. Quantities of 100 are packed in plastic resealable tubs, and bulk packages of 1,000 are packaged in poly bags. Both feature easy to read labels in see through packaging.