EFG Composites high grade, highest technical standards and unique finish. Today, we are the leading industry in supplying Premium range Architectural Hardware products. EFG Composites Hardware is the preferred choice for residential clients as well as diverse Industrial Sectors and many other Corporate Groups. Presently, we are dealing in architectural hardware and Stainless Steel. Each of our product is individually inspected for any defects or errors. Our high quality products and consistency in satisfying client’s expectations has helped us gain more clientele through reference and praise. Our extremely talented team of experts uses its innovation and calibre to launch over 30 products each year. We are having hundreds of products including cabinet handles, glass door handles, knobs, and main door handles. Our unquenchable thirst to grow further in this sector and rise above client’s expectation allows us to keep developing new products each year. With hard work and persistence, we will soon be entering the international market and work towards providing even better experience to our clients
Hex bolts, also called hexagon screw head bolts, hex cap bolts, hex-cap screws, or machine bolts, are a very common choice when it comes to construction and repair. Screw head bolts come in a large variety of sizes and diameters. The best way to choose the right hex bolt is to find the bolt material that best suits your needs. A nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads' friction, a slight stretch of the bolt, and compression of the parts. In applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed: Adhesives, safety pins or lock ire, nylon inserts, or slightly oval-shaped threads. The most common shape is hexagonal, for similar reasons as the bolt head - 6 sides give a good granularity of angles for a tool to approach from (god in tight spots), but more (and smaller) corners would be vulnerable to being rounded off.
Use of two nuts to prevent self-looseningIn normal use, a nut-and-bolt joint holds together because the bolt is under a constant tensile stress called the preload. The preload pulls the nut threads against the bolt threads, and the nut face against the bearing surface, with a constant force, so that the nut cannot rotate without overcoming the friction between these surfaces. If the joint is subjected to vibration, however, the preload increases and decreases with each cycle of movement. If the minimum preload during the vibration cycle is not enough to hold the nut firmly in contact with the bolt and the bearing surface, then the nut is likely to become loose. Specialized locking nuts exist to prevent this problem, but sometimes it is sufficient to add a second nut. For this technique to be reliable, each nut must be tightened to the correct torque. The inner nut is tightened to about a quarter to a half of the torque of the outer nut. It is then held in place by a wrench while the outer nut is tightened on top using the full torque. This arrangement causes the two nuts to push on each other, creating a tensile stress in the short section of the bolt that lies between them. Even when the main joint is vibrated, the stress between the two nuts remains constant, thus holding the nut threads in constant contact with the bolt threads and preventing self-loosening. When the joint is assembled correctly, the outer nut bears the full tension of the joint. The inner nut functions merely to add a small additional force to the outer nut and does not need to be as strong, so a thin nut (also called a jam nut) can be used.
A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are as a spacer, spring (Belleville, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Washers are used to spread the load of a bolt or screw over a larger area or to help prevent loosening under vibration. Washers usually have an outer diameter (OD) about twice the width of their inner diameter (ID). Washers are usually metal or plastic. High quality bolted joints require hardened steel washers to prevent the loss of pre-load due to Brandling after the torque is applied.
A Stainless Steel Fastener is recognized by a helical ridge, known as a male thread or thread just wrapped around a cylinder. A bolt or screw is kind of fastener. Some screw threads are known as female thread as they are designed to mate with a complementary thread, some times in the form of a nut or an object which has an internal thread formed into it. Because other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The screws are mostly used for holding objects together and positioning together. A screw contains always a head on one side and contains a special formed shape which allows it to be turned, with a tool. Common tools which are kept for driving screws include wrenches and screwdrivers. Generally, the head is larger than the body of the screw and keeps the screw from being deeper than the length of the screw and provides a bearing surface. The portion known as shank is the cylindrical portion of the screw which is underside the head to tip. It may be partially or fully threatened. There is a distance between two threads and it is known as pitch. A fastener is a hardware device that mechanically joins or affixes two or more objects together. Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc. Fasteners used in these manners are often temporary, in that they may be fastened and unfastened repeatedly. Some types of woodworking joints make use of separate internal reinforcements, such as dowels or biscuits, which in a sense can be considered fasteners within the scope of the joint system, although on their own they are not general purpose fasteners. Furniture supplied in flat-pack form often uses cam dowels locked by cam locks, also known as conformant fasteners. Items like a rope, string, wire (e.g. metal wire, possibly coated with plastic, or multiple parallel wires kept together by a plastic strip coating), cable, chain, or plastic wrap may be used to mechanically join objects; but are not generally categorized as fasteners because they have additional common uses. Likewise, hinges and springs may join objects together, but are ordinarily not considered fasteners because their primary purpose is to allow articulation rather than rigid affixment. A Stainless Steel Fastener is recognized by a helical ridge, known as a male thread or thread just wrapped around a cylinder. A bolt or screw is kind of fastener. Some screw threads are known as female thread as they are designed to mate with a complementary thread, some times in the form of a nut or an object which has an internal thread formed into it. Because other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The screws are mostly used for holding objects together and positioning together. A screw contains always a head on one side and contains a special formed shape which allows it to be turned, with a tool.
Our main line of suppling is petrochemical Stud bolts, petrochemical stud bolts, double ended stud bolts, collar stud bolts, shoulder studs, tap end stud bolts, and we supplies these products in stainless steel (SS), alloy steel and carbon steel grades used in the oil & gas industry for pipelines and flange joints A bolt firmly anchored in, and projecting from, a structure, such as a concrete pad; used to secure another member, as in bolting a sill plate to concrete. A bolt with threads on both ends designed to be screwed permanently into a fixed part at one end and to receive a nut on the other. Our company is counted among the leading supplier of best quality range of studs. These studs can be availed in different dimensions as per the requirement of the client. Studs may be full threaded, half threaded & double ended.
The first step in any project is always the foundationing work, EFG Composite supplies all types of L type foundation bolts, J type foundation bolts, straight foundation bolts, plate type foundation bolts in stainless steel (SS) alloy steel and carbon steel grades in our factory.
A steel bolt usually fixed in abuilding structure with its threadedportion projecting; used to secureframeworks, timbers, machinery bases, etc. An anchor bolt is used to attach objects or structures to concrete. There are many types of anchor bolts, consisting of designs that are mostly proprietary companies. All consist of a threaded end, to which a nut and washer can be attached for the external load. Backed by a rich industrial experience, we are engaged in supplying a wide range of Foundation Bolts. Renowned for their high tensile strength and high efficiency, these are widely used by our clients across the world. Made by using high grade steel and its alloys, these are very durable in nature and have high rust & corrosion resistance. Available in various specifications, our clients can purchase these from us at most competitive prices. We also offer quality Foundation Bolts that are used in diverse industries for various applications. These are known for their dimensional accuracy, corrosion resistance, strength, durability. We also offer
mild steel washers that are manufactured from high grade raw material, which are used for foundation of heavy industries.
A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used in tension. Threaded rod in bar stock form is often called all-thread. For studs that are not completely threaded, there are two types of studs: full-bodied studs, and undercut studs. Full-bodied studs have a shank equal to the major diameter of the thread. Undercut studs have a shank equal to the pitch diameter of the screw thread. Undercut studs are designed to better distribute axial stresses. In a full-bodied stud the stresses are greater in the threads than in the shank. Undercut studs (rolled thread) are also stronger because the metal is "rolled" up to the major diameter, not removed. This preserves the grain of the steel, and in some cases even enhances it. Full bodied studs (cut thread) are weaker because metal is removed to create the thread, disturbing the grain of the steel.
EFG Composites supplies and exports the complete range of pipe and piping products used for pipe supports and pipe structures like U bolts with nut & washers, pipe hangers, pipe support hangers, pipe clamps. These are manufactured in carbon steel, alloy steel and stainless steel with various finishes like zinc plating, and hot dip galvanized, PTFE and fluorocarbon coating. A U-Bolt is a U-shaped bolt with two threaded arms protruding from a curved base. U-bolts are useful for attaching pipes to machines, whereas square-shaped U-Bolts are primarily used for lumber applications. They are available in stainless and carbon steel. A U-bolt is a bolt in the shape of the letter U with screw threads on both ends’-bolts have primarily been used to support pipework, pipes which fluids and gasses pass through. As such, U-bolts were measured using pipe work engineering speak. A U-bolt would be described by the size of pipe it was supporting. The nominal bore of a pipe is actually a measurement of the inside diameter of the pipe. Engineers are interested in this because they design a pipe by the amount of fluid / gas it can transport. As U-bolts are now being used by a much wider audience to clamp any kind of tubing / round bar then a more convenient measurement system needs to be used.
Duplex has high amount of chromium and a slight amount of nickel, Called 'duplex' because it combines both austenitic (chromium-nickel) and ferritic (chromium only) molecular structures. Duplex stainless steel offers greater strength and higher resistance to stress-corrosion cracking than most other types of stainless steels, and is used mainly in desalination plants, heat exchangers, and marine applications.
Duplex is also called “Duplex stainless steels” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. As the material cools to room temperature, about half of the ferritic grains transform to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite. As their names imply, they consist mainly of one phase, austenite or ferrite.
Although these types are fine for a wide range of applications, there are some important technical weaknesses in both types:
Austenitic– low strength (200 MPa 0.2% PS in solution annealed condition), low resistance to stress corrosion cracking.
Ferritic– low strength (a bit higher than austenitic, 250 MPa 0.2% PS), poor weldability in thick sections, poor low temperature toughness , In addition, the high nickel content of the austenitic types leads to price volatility which is unwelcome to many end users.
The basic idea of duplex is to produce a chemical composition that leads to an approximately equal mixture of ferrite and austenite.
