Type of Truss Head Screw. When choosing the right fastener for your application, you’ll need to consider several factors, including material, size, thread specification, and required torque. The screw head is a key differentiating factor. Not only is the head the most recognizable part of the object, but its properties will also dictate the application advantages [...]
Types of Cap Screws. Cap screws are fasteners for machine parts, threaded along the whole length of its shank and held by threads tapped in the hole in which it is screwed. Cap screws are available in socket head, flat head, hex head and round socket head types. As these fasteners are available in various designs, you will [...]
What is O-ring torx drive sealing screws? O-ring screws, are designed and manufactured with a cold formed groove beneath the head of the screws. overcome all these limitations by placing an O-ring under the head for sealing. Advantages of our stainless steel O-ring torx drive sealing screws To overcome all these limitations by placing an O-ring [...]
What is a sheet metal screw? Sheet Metal Screws: Usually threaded all the way to their head, these will work in wood, but wood screws shouldn't be used in metal . Most of these screws are self-tapping in that they only require a pre-drilled hole (pre-drill sizes), but some come with self-drilling or self-tapping tips. Here's [...]
What is a thumb screw? A screw drive that comes with either a tall headed or ridged (knurled) sides, or a key-like flat sided vertical head can be defined as a thumb screw. These screws can easily be tightened or loosened by hand without using any external drive. However, they are not ideally used for any structural [...]
What is a sems screw? A screw and washer assembly. A screw or bolt which has a captive washer. The washer is frequently loose on the plain shank of the fastener, the shank diameter being equal to the effective diameter of the thread; the thread being rolled from this diameter. The origin of the word is a [...]