Is counterbore the same as countersink?

The key difference between countersink and counterbore screws are the size and shape of the holes, counterbore holes are wider and more square to allow for the addition of washers. Countersinking creates a conical hole matching the angled shape on the underside of a flat-head screw.

What is countersink in PCB?

A countersink is a cone shaped hole cut into the laminate. It is typically used to allow the tapered head of a screw to sit flush with the top of the laminate. By comparison, a counterbore makes a flat-bottomed hole and its sides are drilled straight down.

What is the difference between a countersunk hole and a counterbore hole?

A countersink is a cone-shaped hole that is cut into the PCB to allow the flat head of a socket cap screw to fit flush with the surface of the board. A counterbore is a cylindrical flat-bottomed hole that is designed to house a hex head or socket head cap screw to be used to secure a PCB board.

What do you use a countersink for?

Countersinks are mainly used for countersinking drill holes, countersinking screws and deburring. Countersinking widens the drill hole and facilitates subsequent tapping. When countersinking screws, space is created for the screw head so that it closes with the surface of the workpiece.

What is meant by counterbore?

verb (used with object), coun·ter·bored, coun·ter·bor·ing. to enlarge (a drilled hole) along part of the length of the hole by drilling with a bit having a greater diameter.

What countersink means?

countersink. / (ˈkaʊntəˌsɪŋk) / verb -sinks, -sinking, -sank or -sunk (tr) to enlarge the upper part of (a hole) in timber, metal, etc, so that the head of a bolt or screw can be sunk below the surface. to drive (a screw) or sink (a bolt) into such an enlarged hole.

Can you countersink PCB?

If you’re running out of space in your device but want additional features on it, as a means to increase the flexibility of your device, you can drill a conical countersink hole into the PCB. This hole is designed to fit a typical screw with a flat head, and it requires more precision than a counterbore hole.

What is the angle of counter sink?

Fluted countersink cutter Countersunk-head screws that follow the Unified Thread Standard very often have an 82° angle, and screws that follow the ISO standard very often have a 90° angle. Throughout the aerospace industry, countersunk fasteners typically have an angle of 100°.

How do you call a countersink?

Draw the leader, or dimension line, with the arrow just touching the edge of the outer circle of the countersunk hole. Draw the line radially, so that it points toward the center of the hole, and if extended it would pass through the center point.

What is the angle of countersink?

Countersink cutters are manufactured with six common angles, which are 60°, 82°, 90°, 100°, 110°, or 120°, with the two most common of those being 82° and 90°. Throughout the aerospace industry, countersunk fasteners typically have an angle of 100°.

How do you make a hole in Altium?

We can create mounting holes in Altium Designer in two ways. Create a mounting hole as a common object using Place > Pad from the main menus. After creating a pad, we need to configure its type (through), the exact size of the hole, the metallization area, and manually assign a net to it.