Structural fasteners tuff brand, nuts, bolts, studs. Rollfast is the biggest and the largest manufacturer in india for bigger diameter hex bolts and nuts in high tensile grade from m20 diameter and above till m100 by hot firging process, our two manufacturing facilities in north india near new delhi are currently producing hex bolts and nuts upto m100 in bigger sizes the complete range of bigger. We are a worldwide manufacturer and exporter of nuts, bolts, studs, screws, washers, cap screws, sockets, hex keys, threaded bars, threaded rods, structural fasteners, machine screws, auto fasteners, fasteners as per drawing in high tensile and stainless steels. Yield strength psi core hardness rockwell max description grade identification marking astm a193a193m b6 4in and under. High tensile stainless steel fasteners nut bolts manufacturers. Fastener reference guide industrial supplies, oem fasteners. High strength or heattreated fasteners are often required to handle the tensile, shear or combination loads on the bolted joints in demanding applications. Caparo is indias fastest growing manufacturer of high tensile fasteners and is backed by the complete technical support from the group company caparo atlas fastenings, uk, a leading manufacturer of fasteners. A high strength structural bolt of size m24, length 140 mm, property class 8. High tensile fasteners sundram fasteners makes the. A high strength fastener is a fastener having high tensile and shear strengths attained through combinations of materials, workhardening and heat treatment. High tensile fasteners high tensile bolts manufacturer from.
For stud tap ends that resist higher tensile loads than the nut end or for fully. Failure modes of bolt and nut assemblies under tensile loading. It has established itself as a reliable supplier of fasteners to. Scope and field of application covers the requirements for large series hexagon, high strength structural steel bolts in. Tensile strength is an expression of the maximum capacity of a particular material to stretch under tension load prior to failure. Sundram fasteners limited is a part of the tvs group. The length of the bolt was no problem but it was matching the shank in any type of bolt. Hightensile steel definition and meaning collins english. The torqueangle curves can also provide the necessary information to properly qualify the capability of tightening tools to properly tighten a given fastener. Unbrako engineering guide precision high grade alloy. Before heat treatment, calibration of the furnace, thermocouples and controllers shall be ensured as per the calibration procedures approved by ams 2750d and isac. We are one of the reputed manufacturers of hex head bolts, which are high in demand. Pdf a study of highstrength bolts after dephosphoring.
The lower end was free to move before starting tensile tests. These fasteners are available in metric, bsw, bsf, unc and unf threads. What are the requirements of working capital for setting up a high tensile fasteners plant. Stainless steel fasteners also available in hightensile a490 and a4100. This page contains individual pdf downloads of technical information relating to bolt products. Engineering fundamentals of threaded fastener design and.
Download fulltext pdf failure modes of bolt and nut assemblies under tensile loading article pdf available in journal of constructional steel research 126november 2016. Swift industrial corporation enclosures and machining. Mechanical properties of steel bolts, screws and studs. Meaning, pronunciation, translations and examples log in dictionary. High strength fasteners are made from mediumhigh carbon or alloy steels and are heat. What is the structure of the high tensile fasteners industry and who are the keymajor players.
Similarly, we are probably aware that india is one of the biggest grade 8. High tensile hex bolts, high tensile u bolts, high tensile hexagon bolts, high tensile unf bolts, high tensile unc bolts raaj sagar steels is the biggest manufacturer for larger high tensile stainless steel fasteners in india since 1982, we have a monthly production of over 300 tons in bigger sizes from m24 to m100. Ferrium s53 is a new corrosionresistant, ultra high strength steel available for fastener and. We emphasise our manufacturing to the above industry and supply speedy delivery of fasteners at the shortest delivery periods. Home products high tensile bolts high tensile bolts full thread. High tensile and yield strength high shear strength three screws do the work of five clearance for socket wrench no wrench clearance necessary dimensions and tightening torques iso metric threads. Product applications with specialized coating and surface treatments are made. Established in 1911, unbrako is the ultimate authority in high tensile industrial fasteners and remains the socket screw by which all others are measured. Details of the software products used to create this pdf file can be found in. Matnaroo fastners was established in tne year 1991 as a manufacturing unit for high tensile fastners by s. Proposed model prediction and test data show that at high levels of fastener mean stress, the bainite microstructure of the ultra high strength fasteners has a clear detrimental effect on fastener fatigue performance, as compared to the martensite microstructure of commercially available low carbon steel fasteners. How has the high tensile fasteners industry performed so far and how will it perform in the coming years. Offermana comparison between ultra high strength and conventional high strength fastener. High tensile products private limited india, punjab, ludhiana.
The driving force behind the development is engine downsizing and the fact that current grade 12. Hence, we have drafted an impressive quality check policy to deliver automotive tractor spare parts and precision fasteners products with international quality standards. Make sure you have the latest version by downloading from. A high strength fastener is a fastener having high tensile and shear strengths attained through combinations of. An alloy steel is a highstrength carbon steel that can be heat treated up to 300 ksi. High tensile fasteners manufacturer, high tensile 8. Astm f3125 f3125m 19 standard specification for high strength structural bolts and assemblies, steel and alloy steel, heat treated, inch dimensions 120 ksi and 150 ksi minimum tensile strength, and metric dimensions 830 mpa and 1040 mpa minimum tensile strength. Novel model for mean stress effect on highcycle fatigue. When strength requirements are moderate, lowcarbon steel is used. Bolts have a high degree of corrosion resistance compared to carbon and alloy steels. We are a wellreputed firm that manufacture, export and supply an extensive range of high tensile washer.
Astm f3125 f3125m 19 standard specification for high. Many demanding applications require high strength fasteners in order to handle high tensile. Tuff brand fasteners, fastners, fastener, nuts, bolts, studs, screws, washer, high tensile fastenrs, threaded bars, threaded rods, structural fasteners, stainless steel and industrial fasteners, ludhiana,punjab, india. Foundation bolts and fasteners as per customer drawing and specification in high tensile.
High tensile and yield strength high shear strength three screws do the work of five. Tuff brand fasteners, fastners,fastener, nuts, bolts, studs, screws, washer, high tensile fastenrs, threaded bars, threaded rods, structural fasteners, stainless. Rattan industries india railway fasteners, road crash barrier fasteners, wind mill fastener manufacturers, india, hot forging hex bolts and nuts, exporters of high tensile fasteners, tbolts, jbolts, ubolts, foundation anchor bolts suppliers in india, punjab ludhiana. Mechanical properties of steel bolts, screws and studs 1. What are the operating costs for setting up a high tensile fasteners plant. S53 has an abasis 280 ksi uts minimum matching that of 300m. Blacks fasteners technical information downloads of bolt. Caparo is indias fastest growing manufacturer of high tensile fasteners and is backed by the complete technical support from the group company caparo atlas fastenings, uk, a leading manufacturer of fasteners, catering to the european automobile industry for the last 100 years. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made. Fasteners high tensile fasteners, industrial fasteners. A complete laboratory with the stateoftheart equipment is available for complete chemical and mechanical tests implants. Leading manufacturers, supplier and exporters of superior quality high tensile bolts 8. It is a leading raw material manufacturing company and has extended its operations in the field of manufacturing precision fasteners in all grades 4.
Unbrako socket cap screws offer resistance to a greater degree than any other threaded fasteners you can purchase offtheshelf. Mechanical properties proof load psi yield strength min psi tensile strength min psi a325 astm a325 type 1 high. All categories pem brand fasteners for metal sheets and panels studs and pins for sheet metal high tensile strength studs, non flush types hf109, hfg8 hightensile strength studs types hfg8, hf109 metric view items. Hightensile strength studs types hfg8, hf109 metric. Viha steel is a suppliers of a huge range of high tensile fasteners in high tensile grades 8. We are exclusive distributors for caparo high tensile fasteners. These are manufactured using high grade material and upgraded techniques. Ceils manufacturing facilities are housed in a state of the art plant producing 14000 mt of fasteners per annum. Scope and field of application covers the requirements for large series hexagon, high strength structural steel bolts in property classes 88 and 109 and in the size range ml 8 to m36 with. Yield stress yield point is an expression of the theoreti. The stronger the better is not necessarily the case for fasteners. High tensile fasteners high tensile bolts manufacturer.
During the last 5 years a new generation of fasteners have entered the market in europe. Essentially the sooner the baking is completed following plating the better is the efficacy of the treatment. We are successfully established manufacturer and supplier of an exclusive range of high tensile washers in india. Engineers, construction, automobile, manufacturing and a lot of services industry professionals know the answer to this and many other technical questions about fasteners and fixi. Sundram fasteners limited leading supplier of parts for. Hightensile strength studs types hfg8, hf109 metric on. Raaj sagar steels is the biggest and the largest manufacturer in mumbai india for bigger diameter hex bolts and nuts in high tensile grade from m20 diameter and above till m100 by hot firging process, our two manufacturing facilities in mumbai india near midc navi mumbai are currently producing hex bolts and nuts upto m100 in bigger sizes the. High tensile fasteners our product range includes a wide range of high tensile bolts, high tensile allen bolts, high tensile nuts, high tensile studs, high tensile allen csk and high tensile button heads. Some products may not be available in all branches. Aug 22, 2010 replied by kirkynut on topic stainless or high tensile i had trouble finding suitable replacement bolts from my local fasteners south essex fasteners, who are one of the largest in the south. Md exports llp is a suppliers of a huge range of high tensile fasteners in high tensile grades 8.
Furthermore, all data has been organized to let you find the facts you want with the greatest speed and least effort. The effects of the hightensile bolt dephosphoring process on the entire. Our stock range is substantial and includes many bespoke or dedicated items as well as the full range starts from m24 to m64 in high tensile grades is 64, is 67 grade 8. Tensile strength min psi standard bolt identification markings identification grade mark specification fastener description material nominal size range in. Stockist of natural gas piping material, piping material, fuel piping material, fuel oil piping material, fuel gas piping material, fitting piping material, gas piping material, gas line piping material, industrial piping material, oil and gas piping material, power plant piping material, sanitary piping material, underground gas piping material, underground piping material, tube material. Physical properties of highstrength bolt materials at. High tensile hexagonal head fasteners are available in 8. What is the project feasibility of a high tensile fasteners plant. Fastener catalog an3 thru an6 steel, cres or aluminum bolt machine, aircraft, hexagon head. The typical ultimate strength of this bolt material is 55 ksi.
High tensile washers manufacturers washers fasteners. On the other hand, rivets are considered to be permanent fasteners since. Tensile test for bolts and screws not expected to break in free threaded length due to. Everything you need to select, specify and order these precision products is at your finger tips. Specification for high strength structural bolts second revision i. Manufacturer and supplier of nut bolts and fasteners. The famous unbrako socket head cap screws and the durlok selflocking. We are the suppliers of choice to leading customers in the automotive and industrial segment. The multiplication of these two figures will give 110 of the yield stress in nmm2, so 8 x 8 110 x 640 nmm2. When high tensile fasteners are electroplated property classes 10. What is the total project cost for setting up a high tensile fasteners plant.
It has established itself as a reliable supplier of fasteners to almost all the automobile oems in the country and their manufacturing locations abroad. What are the machinery and equipment requirements for setting up a high tensile. When purchasing high tensile bolts, there are two main grades you should be aware of. Caparo high tensile fastners swift industrial corporation. High tensile fasteners sundram fasteners makes the complete range of high tensile fasteners. These high tensile fasteners offer excellent corrosion resistance. Ultra high tensile strength fasteners ultimate tensile strength exceeding 0mpa. At boltfast, our high quality nuts, bolts, fasteners, studs, washers and screws. Unbrako fasteners known for quality, safety and innovation for over. High tensile fasteners high tensile bolts and nuts grade 10. A newly developed thread shape realized a bolt tension 1.
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