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Ships within 48 hours · Estimated delivery Oct 1 - Oct 6
STI Tap: 5/8"-11 STI
Part Number CTH2187
Overall Length: 5-3/8"
Part Number DWTMHX1
Metric Stainless A4-70 Button Socket Head Cap Screws
1-3/16" X 5/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 STI Tap: 5/8"-11 STIProduct 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
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