Roller screws and ball screws are similar devices that convert rotary motion into linear motion. Roller screws have threaded rollers, while ball screws have balls. Roller screws are more expensive but offer higher longevity, quality, accuracy, and maximum capacity. They consist of three components: the nut housing, internal thread, and shaft with threaded rollers. As […]
Micrometer screws are portable devices used to measure small lengths and thicknesses, such as the width of pipes or the thickness of a wire. They have four parts and can be calibrated for different units of measure. They were first created by French astronomer William Gascoigne in the 1600s and have since been widely produced. […]
A ball screw actuator uses a precision machined lead screw and ball bearings to provide high thrust, linear load movement. The balls are arranged to match the pitch of the nut threads, causing the nut to move up or down its length. The actuator produces linear or rectilinear output motion from a rotating input, making […]
Studs, also known as bolts, are headless screws used to attach table and chair legs to soft materials like wood. They come in various sizes and designs depending on the application and require a special key for installation. Hook screws are available at hardware stores and can be used for various purposes where the hardware […]
A screw press uses a large screw to generate downward force, with a handle or wheel at the top and a punch at the bottom. It can create specialized cuts and shapes using punches or dies, but is limited in the thickness of metal it can manipulate. It is still widely used in various industries. […]
Locking screws are adjustable fasteners with a threaded barrel and countersunk head. They are used for fine adjustments to a clamp’s tension and to hold a part in place or regulate flow rate. Clips and washers are used to prevent direct contact with vulnerable surfaces. Hose clamp screws tighten hoses to restrict flow, and set […]
Nylon screws are used to secure mechanical connections in small appliances and electronics. They have a cylindrical shaft with an external thread and come in different types and sizes. Nylon screws generate limited clamping force and are not suitable for heavy-duty fastenings. They are lightweight, corrosion-resistant, and have good electrical insulating properties, but can fluctuate […]
Screw piles are helical columns twisted into the ground to support a load, with their strength depending on the number and diameter of plates, and the characteristics of the ground. Originally used to support lighthouses, they are now used in various applications and offer benefits such as higher load capacity, smaller equipment requirements, and lower […]
A dowel screw is a metal fastener with two threaded, tapered ends used in furniture and wooden items. They are inserted into pre-drilled guide holes and require special screwdriver heads to avoid flattening the threads. Removal can be difficult, but they can be back filled or sawn in half to sever a connection. A dowel […]
Pocket screws are used in woodworking to join two pieces of material without visible fasteners. A special jig is required to install the screw at a shallow angle, creating shallow pockets in the wood. The screws have flat heads and self-tapping tips, allowing for a cleaner finish. The use of pocket screws eliminates long drying […]
Screw pumps are mechanical devices used to move substances. The Archimedean screw is a basic type, while more complex variations include those with multiple screws and those used in submarines. Screw vacuum pumps use the physics of a screw pump to create a vacuum, and augers can be constructed as a variation to dig holes […]
Choosing the right machine screw involves considering factors such as length, thickness, material, and head shape. The screw should be long enough and thick enough to hold the pieces together, and the material should be chosen based on strength and durability. The head shape should match the tool used, and there are three different head […]
