Screws have grooves along the shaft to create a secure bond with materials. The screw thread can differentiate screw types and determine where to use them. Screw size and pitch are important characteristics to consider. Screw thread sizes are measured using UTS in the US and ISO worldwide. A screw is a type of fastener […]
Thread protectors are used to seal, protect, and mask screw threads on items such as pipes, gas cylinders, and firearm barrels. They prevent damage, corrosion, and contamination, and can have additional features such as lifting rings. They are made from materials such as silicone rubber, vinyl, and polyethylene. A thread protector is a member of […]
Thread angle is the degree of angle between the threads on a screw, affecting its fixing power and ease of installation. Standard angles include 60 degrees for most screws, 55 degrees for pipes, and 30 degrees for rounded or knuckle threads. The angle can be measured using a micrometer or calculated based on other screw […]
Pipe threads allow pipes to be joined together, with male threads on the outside and female threads on the inside. Industry standards include NPT and NPSM, with GHT and NST for specific applications. PTFE tape is recommended for leak-proof seals. Pipe sizes are measured by OD and TPI. Building codes require different materials for different […]
Wire cutters can refer to tools used to cut thread or wires in manufacturing, with craft thread cutters being safer alternatives to scissors. They can be found in craft stores and are sometimes viewed as security threats by airline agencies. Manufacturing wire cutters can make cylindrical or tapered threads and are often designed for automation. […]
Thread milling is a method of creating threads in metal using a CNC milling machine. It allows for diversity and higher quality finished products compared to tapping. Machinists drill a hole and use a cutting tool to mill the thread, which can be done for any size hole. Thread milling puts less stress on the […]
Thread sealing tape, also known as Teflon or PTFE tape, is used to create an airtight seal with plumbing fittings. It is applied by wrapping it around the outer threads of a pipe before screwing in the other component. It can be used on any system where pressure and leaks are a potential problem. Color-coded […]
Thread rolling is a process of pressing screw or bolt threads into stock instead of cutting it. It uses a hardened steel tool bit to impress the shape of the thread into the surface of the stock. This method is less expensive than threading, produces stronger products, and generates no heat or swarf. Thread rolling […]
AN threads refer to the outside diameter of the pipe used with the fitting. AN fittings use a 37-degree flare, superior to SAE’s 45-degree flare. AN fittings are used in the military, NASA, aviation, and racing industries. AN fittings require special aluminum wrenches and a drop of oil during assembly. Overtightening is the main cause […]
Discussion threads group comments on a single topic and can appear in various orders. Netiquette requires staying on topic and responding appropriately to individual comments. Open threads allow for broader discussion. Discussion threads, sometimes also called topic threads or threaded discussions, can exist within Internet message boards, blogs, e-mail lists, and even on news sites […]
Threaded inserts are fasteners that can be cast or installed to allow bolts or studs to be threaded into materials. Different types are suited for different applications, including mold inserts, captive nuts, self-tapping and press-fit inserts, and helical inserts for repairing damaged threads. A threaded insert is a type of fastener component that can serve […]
Flux wire is used in flux cored arc welding (FCAW) as an electrode with a flux core to join two pieces of metal together. There are two types of flux wire: gas shielded and self shielded. The type used depends on the thickness of the metals and the location of the welding. Flux wire is […]
News organizations like the Associated Press and Reuters supply stories, photos, and graphics to newspapers worldwide. They have reporters covering events that local reporters can’t, making them the “official” source for most newspapers. Newspapers and TV stations pay a subscription fee to have articles and photos sent to them. You may have heard of the […]
