M8 Flat Head Countersunk Steel Machine Screws – Black, 30 mm Long, Phillips Drive, 25pcs

These M8 Flat Head Countersunk Steel Machine Screws have a blackened finish that provides mild corrosion resistance. These screws are angled under the head to sit flush within countersunk holes. Length is measured from the top of the head. Coarse thread spacing is most common. Coarse threads are the widest spaced, so they start easily and require the fewest turns to tighten. The threads are deep and thick, which makes them less likely to strip or jam, even if nicked, dirty, or rusty.

Specifications

Drive Styles
		SPLINE

One of the major differences between machine screws and other types of screws is the fact that they are usually used in threaded holes. With most other types of screws, the screw itself creates the hole as you drive it into the material. One of the benefits of having a threaded hole through which you can drive the screw is that you are likely to end up with a stronger joint. This will translate to higher product quality, something that is important in a market where competition is high. Most machine screws are usually designed to hold together parts of electronics, engines and industrial equipment. For this reason, they are typically much stronger compared to other types of fasteners.

The vast majority of machine screws are usually designed to have two types of thread: coarse thread and fine thread. The coarse thread machine screws usually have 24 threads per inch, and the fine thread ones usually have 32 threads per inch. It’s possible to have machine screws that have different thread counts, but these are rare and are usually custom made.

Phillips-drive Head	Coarse Thread The screw has a deep coarse thread with an even pitch. Keep an excellent grip with the screwdriver bit.