39/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Alloy Flat Head Socket Cap

Alloy Flat Head Socket Cap Screws w/ 40 Hole Bin

Length 2-23/32"

Part Number GLBCOX1210

Part Number VAC2

Fixture Time: 5-20 Minutes

39/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Alloy Flat Head Socket CapProduct Description Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1 8" or less), the operations is usually known as spot facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two piece construction, having an integral shank and