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ASTM F568M
ASTM F568M is an ASTM International standard for metric bolts, screws and studs that are used in general engineering applications. It is titled: ''Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners''. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter. The standard was withdrawn in 2012.. and has been replaced by ISO 898-1. This standard defines ''property classes'', the metric equivalent of a screw ''grade'', that are almost identical to those defined by ISO 898-1, except for the addition of the 8.8.3 and 10.9.3 classes. These two additional standards are fasteners that have the same mechanical properties as their base property class (i.e. 8.8 and 10.9), but are made from weathering steel. The standard is referenced by ASME B18.29.2M, which defines insert length selection for helical coil screw thread inserts. This is a standard set by the standards organization ASTM International, a voluntary standards develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASTM International
ASTM International, formerly known as American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services. Some 12,575 ASTM voluntary consensus standards operate globally. The organization's headquarters is in West Conshohocken, Pennsylvania, about northwest of Philadelphia. It is founded in 1902 as the American Section of the International Association for Testing Materials (see also International Organization for Standardization). History A group of scientists and engineers, led by Charles Dudley, formed ASTM in 1898 to address the frequent rail breaks affecting the fast-growing railroad industry. The group developed a standard for the steel used to fabricate rails. Originally called the "American Society for Testing Materials" in 1902, it became the "American Society for Testing And Materials" in 1961. In 2001, ASTM official ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 9
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultimate Tensile Strength
Ultimate tensile strength (UTS), often shortened to tensile strength (TS), ultimate strength, or F_\text within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials the ultimate tensile strength is close to the yield point, whereas in ductile materials the ultimate tensile strength can be higher. The ultimate tensile strength is usually found by performing a tensile test and recording the engineering stress versus strain. The highest point of the stress–strain curve is the ultimate tensile strength and has units of stress. The equivalent point for the case of compression, instead of tension, is called the compressive strength. Tensile strengths are rarely of any consequence in the design of ductile members, but they are important with brittle members. They are tabulated for common materials such as alloys, composite materials, ceramics, plastics, and wood. Definition The ultimate tensile strength ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shear Force
In solid mechanics, shearing forces are unaligned forces acting on one part of a body in a specific direction, and another part of the body in the opposite direction. When the forces are collinear (aligned with each other), they are called tension forces and compression forces. William A. Nash defines shear force in terms of planes: "If a plane is passed through a body, a force acting along this plane is called a ''shear force'' or ''shearing force''." Force required to shear steel This section calculates the force required to cut a piece of material with a shearing action. The relevant information is the area of the material being sheared, ie the area across which the shearing action takes place, and the shear strength of the material. A round bar of steel is used as an example. The shear strength is calculated from the tensile strength using a factor which relates the two strengths. In this case 0.6 applies to the example steel, known as EN8 bright, although it can vary fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO Metric Screw Thread
The ISO metric screw thread is the most commonly used type of general-purpose screw thread worldwide. They were one of the first international standards agreed when the International Organization for Standardization (ISO) was set up in 1947. The "M" designation for metric screws indicates the nominal outer diameter of the screw thread, in millimetres. This is also referred to as the "major" diameter in the information below. It indicates the diameter of smooth-walled hole that a male thread (e.g. on a bolt) will pass through easily to create a well-located connection to an internally threaded component (e.g. a nut) on the other side. That is, an M6 screw has a nominal outer diameter of 6 millimetres and will therefore be a well-located, co-axial fit in a hole drilled to 6 mm diameter. Basic profile The design principles of ISO general-purpose metric screw threads ("M" series threads) are defined in international standard ISO 68-1. Each thread is characterized by its majo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASTM A325
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled ''Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength''. It defines mechanical properties for bolts that range from in diameter. The equivalent metric standard is ASTM A325M, which is titled ''Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength''. It defines mechanical properties for sizes M12–36.. This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services. In 2016, ASTM officially withdrew specification A325 and replaced it with ASTM F3125. To minimize confusion, bolt head markings are unchanged and the designation A325 is retained as a grade name within the new standard. In 1951, A325 bolts were recognized as equivalent to a hot driven ASTM A141 rivet. Types The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 12
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 10
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 8
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metric System
The metric system is a system of measurement that succeeded the Decimal, decimalised system based on the metre that had been introduced in French Revolution, France in the 1790s. The historical development of these systems culminated in the definition of the International System of Units (SI) in the mid-20th century, under the oversight of an international standards body. Adopting the metric system is known as ''metrication''. The historical evolution of metric systems has resulted in the recognition of several principles. Each of the fundamental dimensions of nature is expressed by a single base unit (measurement), base unit of measure. The definition of base units has increasingly been realisation (metrology), realised from natural principles, rather than by copies of physical artefacts. For quantities derived from the fundamental base units of the system, units SI derived unit, derived from the base units are used—e.g., the square metre is the derived unit for area, a qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 5
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hex Cap Screw-class 4
Hex or HEX may refer to: Magic * Hex, a curse or supposed real and potentially supernaturally realized malicious wish * Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States * Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow Web colors * Hex triplet, a six-digit, three-byte hexadecimal number used in computing applications to represent colors Engineering and technology * Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners * Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia) * High-energy X-rays, sometimes abbreviated "HEX-rays" * Hexadecimal, a base-16 number system often used in computer nomenclature * Hexcentric, an item of climbing protection equipment * Heat exchanger, a device for heat transfer * Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation * Intel HEX, a computer file format * Uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
