pcb螺絲孔與螺絲大小

There so many different types of fasteners available that most hardware stores usually have an entire aisle dedicated to them. However, we’re going to go over the basics between screws, bolts, and nails, and when you should use one over the other in different scenarios.

可用的緊固件類型如此之多，以至于大多數五金店通常都有專門用于它們的整個過道。 但是，我們將介紹螺釘，螺栓和釘子之間的基礎知識，以及何時應在不同情況下使用一種基礎知識。

基本差異 (The Basic Differences)

There are literally hundreds of different types of fasteners to choose from, but they all usually boil down to being either a screw, bolt, or nail.

實際上，有數百種不同類型的緊固件可供選擇，但通常都歸結為螺釘，螺栓或釘子。

It’s pretty easy to tell the difference between a nail and a screw because the shank on a nail is smooth and doesn’t have threads. Screws and bolts look somewhat similar, since both have threads.

分辨釘子和螺釘之間的區別很容易，因為釘子上的小腿很光滑，沒有螺紋。 螺釘和螺栓看起來有些相似，因為它們都有螺紋。

A good rule of thumb is that most screws have pointy ends, while most bolts have flat ends, although that’s not a hard and fast rule since bolts can also have pointy ends and screws can have flat ends.

一個很好的經驗法則是，大多數螺釘的末端都是尖的，而大多數螺栓的末端都是平的，盡管這并不是一個硬而快速的規則，因為螺栓也可以具有尖的末端并且螺釘可以具有平的末端。

Screws with pointy ends are meant to be driven into materials that don’t already have threaded holes. So these types of screws can?pierce into a solid material (like wood) and drive in more easily, while a screw with a flat end is meant to be driven into a pre-tapped hole that has threads matching the screw’s own threads.

具有尖頭的螺釘應被擰入還沒有螺紋Kong的材料中。 因此，這些類型的螺釘可以刺入固體材料(如木材)并更容易擰入，而平端螺釘則應被擰入具有與螺釘自身螺紋匹配的預攻Kong中。

Screws also normally have some kind of?shaped cavity on top of the head (a.k.a. provision) that allows you to drive it into a material using a screwdriver or a power drill. Bolts usually don’t have these cavities and instead have heads that are shaped to accept a wrench or socket.

螺釘通常在頭部的頂部也有某種形狀的空腔(又名提供)，可讓您使用螺絲刀或電鉆將其驅動到材料中。 螺栓通常不具有這些Kong，而是具有可容納扳手或套筒的形狀的頭部。

Bolts are also made to accompany a nut of some kind in order to hold something together. In these cases, there’s usually not a threaded hole, but rather an unthreaded hole large enough that the bolt can easily slide all the way through.

還可以將螺栓與某種螺母一起使用，以將某些東西固定在一起。 在這些情況下，通常沒有螺紋Kong，而是沒有螺紋的Kong，該螺紋Kong足夠大，螺栓可以很容易地一直滑過。

However, bolts can also be screwed into a threaded hole in order to fasten something down without the need for a nut, like a valve cover bolt that fastens down the valve cover to the rest of a car’s engine.

但是，也可以將螺栓擰入螺紋Kong中，從而無需螺母即可將某些零件固定下來，例如將閥蓋固定到汽車發動機其余部分的閥蓋螺栓。

什么時候應該使用指甲 (When You Should Use Nails)

Nails are mostly used in light construction. Things like roof shingles, door and window trim, and framing are great examples, as the fasteners don’t need a whole lot of holding power.

指甲主要用于輕型建筑。 屋頂瓦片，門窗裝飾和框架等都是很好的例子，因為緊固件不需要太多的固定力。

Because of that, nails are also a lot easier and quicker to drive into material, especially if you’re using a nail gun that does all of the hard work for you. Plus, they’re cheaper than screws.

因此，釘子也更容易快捷地釘入材料，尤其是當您使用能為您完成所有辛苦工作的釘槍時。 另外，它們比螺絲便宜。

While nails aren’t necessarily stronger than screws, they’re at least a bit more forgiving—they can bend back and forth without breaking?right away, whereas a screw that’s subjected to the same kind of bending force would likely snap.

盡管釘子不一定比螺釘強，但它們至少可以寬容一些-它們可以來回彎曲而不會立即斷裂，而受到相同彎曲力的螺釘則可能會折斷。

什么時候應該使用螺絲 (When You Should Use Screws)

If you need a bit more holding power than nails provide, screws are usually the way to go, since the threads can grab onto whatever material you’re screwing into. You’ll see them a lot in woodworking, as well as light-to-medium construction. Heck, you can also use them all around the house to mount shelves, mirrors and cabinets.

如果您需要比釘子提供的支撐力更多的東西，通常可以選擇螺釘，因為螺紋可以抓住您要擰入的任何材料。 您會在木工以及輕到中型建筑中看到很多。 哎呀，您還可以在房子各處使用它們來安裝架子，鏡子和櫥柜。

Screws are also the most common type of fastener and they can be used with all sorts of materials, which is why there are so many different types of screws, like deck screws, drywall screws, sheet metal screws, wood screws, and more.

螺釘也是最常見的緊固件類型，它們可用于各種材料，這就是為什么有這么多不同類型的螺釘的原因，例如甲板螺釘，干式墻螺釘，鈑金螺釘，木螺釘等等。

However, while screws do have a lot of holding power, they’re not recommended for really heavy-duty construction where the fasteners would be under significant load. This is where bolts come in.

但是，盡管螺釘確實具有很大的保持力，但不建議將其用于真正的重型結構，因為緊固件會承受很大的載荷。 這是螺栓進來的地方。

什么時候應該使用螺栓 (When You Should Use Bolts)

It’s best to use bolts whenever the fastener will be under any significant amount of weight stress, or any project where you’re using large pieces of lumber or other material. So projects like building a porch or fastening a suspended swing under that porch are going to require bolts of some kind in certain locations.

最好在緊固件承受很大的重量應力或使用大塊木材或其他材料的任何項目中使用螺栓。 因此，諸如在門廊上建造門廊或在門廊下固定懸掛Swing的項目在某些位置將需要某種類型的螺栓。

This is because bolts come in much larger sizes than screws do, so they’re great for attaching larger pieces of lumber together, as well as being able to handle much more weight if need be. Plus, being able to screw a nut onto the other end of the bolt means that you can tighten down bolts and fasten together materials much more securely than you can with screws. As pictured above, a nut and bolt can squeeze together two parts that you want to connect.

這是因為螺栓的尺寸比螺釘大得多，因此非常適合將較大的木材連接在一起，并且在需要時能夠承受更大的重量。 另外，能夠將螺母擰到螺栓的另一端，這意味著您可以擰緊螺栓并將材料固定在一起的方式比使用螺釘更牢固。 如上圖所示，螺母和螺栓可以將要連接的兩個部分壓在一起。

如有疑問，請相信您的膽量(或尋求幫助) (When In Doubt, Trust Your Gut (or Ask for Help))

If you’re not sure which type of fastener to use for a project and are worried that screws might not hold up very well, then you’re probably right—it might be better to use bolts instead.

如果您不確定要在項目中使用哪種類型的緊固件，并擔心螺釘可能無法很好地固定住，那么您可能是對的-最好使用螺栓代替。

However, never be afraid to ask for help if you’re really not sure about something, whether it’s at the hardware store or a friend that works in construction. They can easily lead you in the right direction and tell you which fasteners would be best for your project.

但是，如果您不確定某件事情，無論是在五金店還是在建筑上工作的朋友，請不要害怕尋求幫助。 他們可以輕松地將您引向正確的方向，并告訴您哪種緊固件最適合您的項目。

Image from Joe Jukes/Flickr

圖片來自Joe Jukes / Flickr

翻譯自: https://www.howtogeek.com/304665/the-differences-between-screws-bolts-and-nails-and-when-you-should-use-each/

pcb螺絲孔與螺絲大小

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