#4 .111mm Machine Screw Solid Counterbore BoltsandNuts.com Part Number: 87F250HCS8Y

Part Number: 87F250HCS8Y

Part Number: 75C400BFL8P

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Durable polypropylene construction resists fuels and chemicals and has no sharp edges to scratch tools

Part Number: BIT-D/ACO3/8X11/16

#4 .111mm Machine Screw Solid Counterbore BoltsandNuts.com Part Number: 87F250HCS8YProduct 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