Overview Explanation Differentiation between bolt and screw Types of screws and bolts Materials Bolted joints A screw is a type of fastener, in some ways similar to a bolt, typically made of metal, and characterized by a helical ridge, known as a male thread. Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. There are many screws for a variety of materials; heremonly fastened by screws include wood, sheet metal, and plastic. See more on here Text under CC-BY-SA license What are the Different Types of Screws? (with pictures) https:// here /what-are-the-different- types -of- screws .htm Feb 21, 2019 Driving Methods. A hex socket screw or Allen screw requires the use of an Allen wrench, which has a hexagonal shaft that is inserted into the recession in the screw head. The other type of hex screw has an entire head that is hexagonally shaped. A wrench set, socket wrench or adjustable wrench is required for driving hex screws. The Different Types of Screw drivers and Screw s Phillips. Also called a cross-recessed bit, it is one of the two standard screw driver heads. Flathead (Slotted) This is the standard flathead or slotted screw driver. Allen . Fastener Type Chart Fastener Categories. Screw s with a smooth shank and tapered point for use in wood. Head Styles. A countersunk head with a flat top. A countersunk head with a rounded top. Drive Types . The standard drive type for most screw s. Similar to Phillips. Nut Types. A six sided nut.

The hex socket screw / Allen screw requires an Allen wrench, featuring a hexagonal shaft and the other type of hex screw ’s herepletely hexagonal in shape. A socket wrench is required to tighten or loosen it. Apart from being available in above mentioned types … Machine Screw s. A machine screw is a screw or bolt with a flat point. Available in a variety of drive types and heads, they fit a wide variety of applications. Often driven into tapped holes. Used with nuts and washers, also known as “stove bolts” or “stovers”. Shop our Machine Screws. Flat Head Socket Cap Screw -- Metric Series. from Bayou City Bolt Supply Co., Inc. A type of bolt with a recess inside the bolt's head. Socket head cap screw s require assembly with a hex key (Allen Key) or a hex bit driven by an impact tool.

This screw drive type is very popular – and again, you find them in a very wide range of applications. Common sizes are Phillips #1, #2 and #3. heremon Phillips size is #2. Fastener Categories (continued) Mating Screw s. Mating screws have a shoulder that matches the diameter of the sex bolts they are used with. Sex Bolts. Sex bolts (a.k.a. barrel nuts or Chicago bolts) have a female thread and are used for through bolting applications where a head is … Manufacturing methods Hex socket screw heads are usually made by stamping the head with a die, plastically deforming the metal. Other ways to generate the hex socket include linear. Hex keys are made by imparting the hexagon cross-section to steel wire (for example, with a drawing die),