ASTM A574 M / ASME SA574 M
Technical Requirements and Applications The ASTM A574 standard (and its metric version, ASTM A574M / ASME SA 574M) governs the production of high-strength fasteners — socket head cap screws. These hardware products are manufactured from structural alloy steels that have undergone mandatory heat treatment via quenching and tempering. EV Group China’s technological standards ensure a […]
ISO 5752
Technical standards for flanged shut-off and control valves This technical reference guide systematizes the basic dimensional characteristics for Face-to-Face (FTF) and Center-to-Face (CTF) dimensions for industrial pipeline valves. This category of equipment supplied by EV Group China includes gate valves, ball and plug valves, butterfly valves, as well as diaphragm and globe valves. Compliance with […]
ISO 7412
Technical specifications and application of high-strength ISO 7412 bolts The international standard ISO 7412 defines the design parameters and technical requirements for hexagonal bolts with an enlarged wrench size and a shortened thread length. These fasteners are produced with metric threads ranging from M12 to M36 and comply with strength classes 8.8 and 10.9, making […]
ASTM F2281
Technical Overview of the ASTM F2281 Standard The ASTM F2281 specification establishes rigorous requirements for the physical and mechanical properties and chemical composition of fasteners, including studs, hex head bolts, and screws with diameters starting from 1/4 inch. These components are engineered by EV Group China for operation in extreme temperature conditions reaching 982 ºC […]
ASTM F2882 / F2882M
Technical features and scope of the ASTM F2882 standard The ASTM F2882 specification sets strict requirements for high-strength screws manufactured from quenched and tempered alloy steel. The standard covers fasteners with a nominal diameter ranging from 0.060 to 1.5 inches, possessing a minimum tensile strength of 170 ksi (1170 MPa). Products supplied by EV Group […]
ASTM F432
Technical features and application scope of the ASTM F432 standard The international ASTM F432 standard establishes strict operational and metallurgical requirements for fasteners used in the mining industry and civil engineering. The nomenclature of regulated products includes anchor bolts (including expansion, mechanical, and foundation modifications), roof and truss fasteners, as well as threaded rods and […]
ASTM F738
Technical aspects and scope of the ASTM F738 standard The ASTM F738 specification establishes stringent requirements for the chemical composition and mechanical properties of stainless steel metric fasteners, including bolts, screws, and studs intended for critical engineering assemblies with high corrosion resistance requirements. The nominal size range covers metric threads from M1.6 to M36. The […]
EN 10130
Technical aspects of the EN 10130 standard This regulatory document specifies the technical delivery conditions for cold-rolled flat products made of low-carbon steel grades intended for complex cold forming. The products are supplied without protective coatings. The product parameters cover a width starting from 600 mm and a thickness ranging from 0.35 mm to 3.0 […]
EN ISO 14579
Technical specifications and scope of the EN ISO 14579 standard This technical manual systematizes the requirements for cheese head screws equipped with a hexalobular (TORX) socket. The standard covers hardware products of product grades A and B with a metric thread range from M2 to M20. These fasteners provide optimal torque transmission and high reliability […]
EN ISO 7094
Technical specifications and application of ISO 7094 washers The ISO 7094 standard establishes requirements for plain washers with an increased outer diameter, belonging to product grade C. These fasteners are characterized by a nominal hardness of 100 HV and are intended for use in connections that require load distribution over the bearing surface, especially when […]
BS 1552
Technical requirements and operational characteristics according to the BS 1552 standard The international standard BS 1552 establishes strict engineering requirements for the design, materials, and testing methods of manually operated plug cocks with a screw-on bottom cover. This shut-off valve is intended for use in gas supply systems operating at pressures up to 200 mbar. […]
MSS SP-78
Technical regulations and scope of application for valves according to the MSS SP-78 standard This regulatory document establishes strict requirements for the design, manufacturing, and quality control of plug valves made of gray cast iron. The standard applies to shut-off valves equipped with both flanged and threaded connection elements for pipeline systems. The technological parameters […]
ISO 7414
Scope and technical purpose of ISO 7414 This standard specifies the dimensions of hexagon nuts, style 1, with an increased width across flats, corresponding to product grade B. The technical requirements apply to products with a metric thread ranging from M12 to M36, intended for high-strength bolted connections of property class 10.9. The EV Group […]
ISO 2341
Technical description and scope of ISO 2341 clevis pins The international standard ISO 2341 establishes strict technical requirements for the design parameters of clevis pins used in high-load mechanical assemblies. The document covers products with nominal shank diameters from 3 to 100 mm, ensuring the interchangeability of components in global mechanical engineering. The EV Group […]
EN ISO 1234
Technical description and purpose of split pins according to EN ISO 1234 This international standard establishes comprehensive requirements for split pins used in mechanical engineering for securing threaded connections and preventing nuts from self-loosening. EV Group China technical regulations cover key product geometry parameters, physical and mechanical material properties, and requirements for anti-corrosion coatings. Manufacturing […]
ISO 10512
Technical specifications and application area of ISO 10512 prevailing torque type nuts The international standard ISO 10512 establishes strict requirements for hexagon prevailing torque type nuts equipped with a non-metallic (nylon) insert. This type of fastener is designed for assemblies subjected to high vibration loads where prevention of self-loosening is required. The products feature a […]
EN ISO 7040
Technical specifications and scope of EN ISO 7040 The EN ISO 7040 standard establishes strict requirements for prevailing torque type hexagon nuts with a non-metallic insert, designed to create reliable threaded connections resistant to vibration loads. These products, supplied by EV Group China, cover a metric thread range from M3 to M36. Design features: Product […]
EN ISO 7719
Technical description and scope of the EN ISO 7719 standard The international standard EN ISO 7719 establishes strict requirements for the geometric parameters and mechanical characteristics of all-metal prevailing torque type hexagon nuts. This fastener is intended for use in critical threaded connections subject to vibration loads, where preventing spontaneous loosening is crucial. The technical […]
EN ISO 8738
Technical features and purpose of the EN ISO 8738 standard The international standard EN ISO 8738 establishes strict requirements for the geometric parameters and manufacturing quality of plain washers intended for use in critical assemblies with clevis pins regulated by the ISO 2340 and ISO 2341 specifications. These fasteners ensure reliable fixation and proper distribution […]
ISO 8677
Technical purpose and scope of application for ISO 8677 fasteners The international standard ISO 8677 establishes strict technical regulations and geometric parameters for bolts equipped with an enlarged mushroom head and a square neck. This type of fastener is designed for use in structures where it is necessary to prevent the bolt from rotating while […]
ISO 10642
Technical aspects of the ISO 10642 standard The international standard ISO 10642 establishes strict requirements for the geometry and performance characteristics of countersunk head screws with a hexagon socket. The standard applies to fasteners with metric threads in the diameter range from M3 to M20 inclusive. Products supplied by EV Group China comply with accuracy […]
SAE AMS5598
Technical Description and Application Scope of the SAE AMS5598 Standard This specification regulates the technical requirements for corrosion-resistant and heat-resistant nickel-based alloys produced in the form of sheet, strip, and plate, standardized in the inch system of measurement. Products supplied by EV Group China meet stringent industry quality standards for critical components and mechanisms. Primary […]
ASTM F880 / ASTM F880M
Technical specifications and scope according to ASTM F880 The ASTM F880 specification defines strict industry requirements for austenitic stainless steel fasteners. The standard regulates the geometry and physical-mechanical properties of three main types of set screws: Socket Set Screws (SSS): diameter range from 0.060 to 1.000 inches. Square Head Set Screws (SHSS): diameter range from […]
EN ISO 10513
Technical description and scope of the EN ISO 10513 standard This international standard regulates the geometric parameters and performance characteristics of prevailing torque type all-metal hexagon high nuts. The products feature a fine pitch thread and are designed for use in critical assemblies of machines and mechanisms where increased reliability of the threaded connection is […]
EN ISO 13337
Technical purpose and scope of the standard The international standard EN ISO 13337 establishes regulatory requirements for the geometric parameters and mechanical characteristics of light-duty spring-type straight pins with a slot. These fasteners are designed for the reliable fixation of mating parts in machine and mechanism assemblies. The technical specifications apply to fasteners with a […]
EN ISO 7042
Technical description and scope of the ISO 7042 standard The international standard ISO 7042 regulates the design requirements and performance characteristics of all-metal prevailing torque type hexagon nuts (high type). Products supplied by EV Group China strictly comply with these standards, ensuring reliable fixation of threaded connections under vibration loads. Technical parameters and classification The […]
EN ISO 8676
Technical description and scope of the EN ISO 8676 standard This international standard regulates the geometric parameters and technical requirements for hexagon head screws with metric fine pitch thread. These products are intended for critical mechanical engineering and instrumentation assemblies where high precision of fixation, vibration resistance, and reliability of the threaded connection are required. […]
EN ISO 8765
Technical features of screws according to EN ISO 8765 standard The international standard EN ISO 8765 regulates the production and technical delivery conditions for high-strength hexagon head screws featuring fine-pitch metric threads. This fastener is a key component in assemblies requiring high joint reliability, resistance to vibration loads, and precise tightening adjustments. EV Group China […]
ISO 14579
Technical purpose and field of application for ISO 14579 screws This international standard specifies the design requirements and geometric parameters for cheese head screws with an internal star-shaped recess (TORX type). The standard applies to fasteners with metric threads in the nominal diameter range from M2 to M20 inclusive, corresponding to product grade A. Screws […]
ISO 3266
Technical purpose and operation of ISO 3266 eye bolts The international standard ISO 3266 regulates the requirements for eye bolts manufactured by forging from carbon steel of class 4. These fasteners are designed for critical rigging operations and universal use within lifting mechanisms. Engineers at EV Group China emphasize that the geometry of the products […]
MSS SP-68
Technical regulation and scope of the MSS SP-68 standard This standard establishes strict operational and design requirements for industrial high-pressure butterfly valves. A key feature of valves covered by MSS SP-68 is the offset seat plane relative to the stem centerline (eccentric design), which ensures increased tightness and durability of sealing elements. EV Group China […]
EN ISO 4016
Specification and application of bolts according to the EN ISO 4016 standard The international standard EN ISO 4016 regulates the technical parameters of hexagon bolts with incomplete thread in the metric size range from M5 to M64. This fastener belongs to product grade C, which determines the permissible manufacturing tolerances and operational specifics in loaded […]
EN ISO 12474
Technical description and application scope of the EN ISO 12474 standard The EN ISO 12474 standard regulates the geometric parameters and technical requirements for high-strength hex socket head cap screws. A key feature of these products is the use of a fine-pitch metric thread, which provides increased vibration resistance and positioning accuracy in machine assemblies. […]
EN ISO 8674
Technical specifications and application of EN ISO 8674 high nuts The international standard EN ISO 8674 regulates the geometric and operational parameters of high hexagon nuts (style 2) equipped with a metric fine thread. The products are intended for critical assemblies with a nominal thread diameter from 8 mm to 36 mm. According to the […]
EN ISO 4018
Technical specifications and scope of application for EN ISO 4018 screws The international standard EN ISO 4018 regulates the parameters of hexagon head screws with product grade C. This type of fastener is designed for use in metal structures and mechanical engineering where larger tolerances are acceptable. The range of nominal thread diameters covers sizes […]
EN ISO 7091
Technical aspects and scope of application for EN ISO 7091 washers The international standard EN ISO 7091 regulates the geometry and technical requirements for plain washers of the normal series, belonging to product grade C with a hardness of 100 HV. This fastener is designed for use with metric threaded connections having nominal diameters from […]
EN ISO 7092
Technical Description and Scope of the EN ISO 7092 Standard This specification regulates the geometric and physico-mechanical parameters of small-series plain washers belonging to product grade A. The document covers elements with nominal thread diameters from 1.6 to 36 mm and two hardness classes: 200 HV and 300 HV. Products supplied by EV Group China […]
EN 14219
Technical specifications and scope of the EN 14219 standard This European standard EN 14219 establishes strict requirements for the geometry and physical-mechanical parameters of hexagon head bolts equipped with a flange. These products are characterized by a fine metric thread and belong to the category of precision fasteners of grade A. The standard regulates the […]
API St 605
Technical requirements of the API St 605 standard for large diameter flanges The API St 605 standard defines technical regulations and manufacturing tolerances for carbon steel welding neck flanges equipped with a connecting face. The standard covers products with a nominal pipe size (NPS) ranging from 26 to 60 inches for pressure classes 75, 150, […]
ISO 4162
Technical requirements according to ISO 4162 standard The international standard ISO 4162 regulates the geometric parameters and physico-mechanical properties of bolts equipped with a reduced hexagon head with an integrated flange. The primary scope of application for these fasteners is high-load assemblies where reliable clamping and pressure distribution on the bearing surface are required. The […]