Therefore, the strength increase in large a325 and f1852 bolts does not affect designs in accordance with s1614. To ensure the highest quality product is supplied, hobson batch test in australia at a nata laboratory accredited for tensile testing of fasteners. Each was developed through the deliberations and approval of the full council membership and. Our highend infrastructure and advanced machinery helps us in delivering the most outstanding range of products to our customers. Astm a193 grade b16 specification boltport fasteners. Most often, customers looking for a high tensile bolt may just be looking for the 8. Below is a chart with the dimensions of our stocked high tensile bolts, in accordance with australian standards. We work as the top manufacturers in the industry and stock an extensive inventory of metric grade 10. Metric bolts minimum ultimate tensile and proof loads. Strength specifications of metric threaded fasteners. Our esteemed clients can avail from us a wide range of high tensile allen bolts. Our highend infrastructure and advanced machinery helps us in delivering. Astm a193 grade b16 is a standard material specification under astm a193 for alloy steel fasteners, for use in high tensile, high temperature and special purpose applications.
Metric high tensile, precision hexagon head bolts, screws and hexagon nuts. High tensile fasteners high tensile bolts manufacturer. Indian standard specification for high strength structural bolts. We produce all our products using the best of raw materials and technology that ensure optimum quality. High tensile fasteners high tensile bolts and nuts grade 10. These b16 stud bolts can be used in high tensile bolting in boilers, pressure vessels, valves, pipeline flanges and fittings, intended for use in highpressure or hightemperature service range between 20.
Mar 03, 2015 where bolts and the mating nuts and washers with hotdip galvanized coating are specified, these shall be subject to the following antiseizing test for testing the effectiveness of the lubricant coating applied to the hotdip galvanized bolts or nuts. For critical hightensilestrength applications, lowgrade bolts may fail, resulting in damage or injury. Astm a193 grade b8 specification for high tensile bolts, screws, stud bolts, anchor bolts, threaded rods, round bars and other externally threaded fasteners, made from 304 stainless steel. Most astm specifications allow for the production of metric series and inch series fasteners from the same specification. Standard bolt identification markings identification grade mark specification fastener description material nominal size range in. Either these bolts are not accompanied by any evidence of compliance with the requirements specification and welding high tensile bolts. Industrial fasteners manufacturers, automotive fasteners. Nickel alloy hanger bolts, high tensile bolts suppliers in india and overseas.
The two figures indicate the tensile and yield strengths of the bolt or screw. These stud bolt anchor are made from very high quality raw material which ensures high durability at its user end. Pioneers nuts and bolts high tensile and stainless steel. Bolt torque calculator calculate required bolt torque. Between 15%18% chromium ferritic stainless steel has a tensile strength of. Metal yard is a leading distributor and manufacturer of high quality grade 10. We have a highly equipped infrastructure facility in mumbai, where our advanced machinery helps us in producing goods of international quality.
S1614 adopted the tensile strength, f u, and minimum pretension forces for bolts in astm bolt standards prior to publication of f3125 and values for f u are explicitly stated in s1614 standard. Bhansali overseas manufactures and trades a wide range of products which include high tensile bolts 10. The maximum load in tension pulling apart which a material can withstand before breaking or fracturing. S an s grade refers to the tensile strength of industrial fasteners, or the maximum amount of stress these fasteners and fixing can withstand before they begin to break or fail. Specification for structural joints using high strength bolts august 1, 2014 includes april 2015 errata supersedes the december 31, 2009 specification for structural joints using high strength bolts. Tensile strength, or ultimate strength, is that property of. You would find these to be the standard type 2, or equal to type 2 bolts. High tensile fasteners manufacturer, high tensile 8. Grade b16 is a heattreated chromiummolybdenumvanadium crmov alloy steel with maximum tensile strength of 860 mpa, yield 725, and 35hrc hardness. Highstrength fasteners are made from mediumhigh carbon or alloy steels. High tensile fasteners high tensile bolts manufacturer from.
Specification for structural joints using astm a325 or. Astm fastener standards specify and test the properties of mechanical fasteners. Citing a concern of hydrogen embrittlement, a490 only allows a type of zincaluminum coating to be used on high strength bolts. Hightensile bolts, fasteners, hot dip galvanised fasteners, industrial fasteners, mechanical fasteners, aerospace fasteners, threaded fasteners, agricultural fasteners, marine fasteners, automotive fasteners, stainless steel fasteners, high tensile fasteners, infrastructural fasteners, building fasteners, fastener components. Australian bolt standards bolts nuts screws online. Astm f312515 standard specification for high strength structural bolts, steel and alloy steel, heat treated, 120 ksi 830 mpa and 150 ksi 1040 mpa minimum tensile strength, inch and metric dimensions. Standard square and hex bolts and screws, ansi b18. Material, nominal size range inches, mechanical properties. Metric steel bolts, screws and studs proof and tensile strength.
High tensile online supplier of nuts, bolts, screws and. Head marking class and material nominal size range mm mechanical properties. High tensile fasteners high tensile bolts and nuts grade. Lubricated bolts and reduced torque lubrication effect on bolt tension and torque. Bhansali overseas is one of the leaders to manufacture and supply high tensile bolts 8. On saestandard bolts, a distinctive pattern of marking is impressed on the heads to. Astm a325 is an astm international standard for heavy hex structural bolts, titled standard specification for structural bolts, steel, heat treated, 120105 ksi minimum tensile strength. Bolts, screws and studs with specified property classes coarse thread and fine pitch thread. Allpro threaded neither employs nor maintains an engineering or technica l staff. Manufacturer and exporter of nuts, bolts, studs, screws, washers, cap screws, sockets, threaded bars, threaded rods, structural fasteners, machine screws, auto fasteners,u bolts, tension control bolts, shear connectors, foundation bolts and fasteners as per customer drawing and specification in high tensile and stainless steels.
Improvised torque wrench improvised torque wrench with luggage scale. Technical metal corporation can fulfill all your requirment of high tensile bolts at best price and shortest delivery time. High tensile bolts high tensile hex bolts high tensile. Allfasteners have existing close relationships with construction contractors, enabled by many years of service satisfaction. Nickel alloy bolts, hex cap screws, and studs, for heat resistance and high. We have experience in various grades of steel right from 8. High tensile fasteners high tensile bolts and nuts grade 8. Owing to features like dimensionally accurate and lasts for a long period, our range is widely appreciated by our clients. Since that time the council has published fifteen successive editions. When a bolt has a grading of s, it means that it can withstand a stress of 45 to 49.
Metric bolts tightening torques engineering toolbox. When purchasing high tensile bolts, there are two main grades you should be aware of. This range is sourced from the famed vendors of the market who follow a strict quality guideline to manufacture this range. It is the most common form of high tensile material and is usually stocked in plain finish or zinc. 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.
This specification covers two types of quenched and tempered alloy steel, metric heavy hex structural bolts having a tensile strength of 1040 to 1210 mpa. The maximum load at which a material exhibits a specific permanent deformation. We export our products to the middle east, europe, south america, african countries, scandinavian countries, mauritius, singapore and thailand among others. Astm f312515 standard specification for high strength. High tensile fasteners high tensile precision fasteners.
For critical high tensile strength applications, lowgrade bolts may fail, resulting in damage or injury. It defines mechanical properties for bolts that range from 1. Metric bolts minimum ultimate tensile and proof loads minimum ultimate tensile and proof loads for metric bolts with coarse or fine threads. The first specification approved by the council, called the specification for assembly of structural joints using high tensile steel bolts, was published in january 1951. When a letter s is included after the first number of the property class tensile strength number it indicates a high strength, heavy hex structural bolt. Astm a490m 14a standard specification for highstrength.
Mlid steel countersunk square plough bolts mlid steel countersunk nib bolts 6. Specification for structural joints using highstrength bolts august 1, 2014 includes april 2015 errata supersedes the december 31, 2009 specification for structural joints using highstrength bolts. The second figure signifies that the fastener will begin to yield at 80% of the ultimate tensile strength, i. Md exports llp is a suppliers of a huge range of high tensile fasteners in high tensile grades 8. Micro metals is high tensile fasteners manufacturer in india, we are one the leading high tensile nut bolt manufacturers in india supply high tensile nuts, high tensile grade.
High tensile as1252 structural bolts for australian projects. Our offered products are examined under the supervision of our experts for stringent compliance with set industrial standards. James glens offering of high tensile threaded fasteners is aimed to compliment our range of stainless fasteners and complete our service package so all your standard fastener requirements can be sourced from a reliable quality supplier. Nuts, heavy hex nuts, slotted hex nuts, nylon insert locknuts, hex. 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. Alloy steel is made from highstrength steel alloy, heattreated, so that would be the. Astms fastener standards are instrumental in specifying, testing, and evaluating the material, dimensional, mechanical, and metallurgical properties of the various forms of hardware fasteners. 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. Astm a193 specification covers requirements for chemical composition, mechanical properties, heattreatment, hardness, recommended nutswashers and markings for grade b8 fasteners. For a higher strength version of this type of bolt, see astm a490. We produce both metric and imperial sized studs stud bolts to astm a193 grade b16 specification. Viha steel is specialized in manufacturing hightensile hex bolts, like din931, 933, a325, a6914, gb5782, 5783, 5785, 5786, australian standard and jis. High tensile fasteners manufacturers high tensile bolts, high tensile bolts 8. Astm f3148 17a standard specification for high strength.
Specification for structural joints using highstrength bolts. Ultimate tensile and proof loads for metric bolts according iso 8981 mechanical properties of fasteners made of carbon steel and alloy steel part 1. 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. For example, astm a490 allows for the production of astm a490m. We manufacture our product range as per the international standards. Besides, our product range is available in various diameters. Understanding high tensile bolts, fastener strengths and grades. High tensile bolts price list high tensile bolts material. What is the difference between a bolt, screw and a stud. We manufacture wide range of nuts and bolts using superior quality raw material. Astm a193 grade b8 specification boltport fasteners. Our high tensile meet the highest quality standards. An axial tensile load which the product must withstand without evidence of any permanent set. Customers can depend on our high tensile bolt, as we are manufacturing these bolts with iso 9001.
This technical information is supplied as a courtesy. Metric bolts head and wrench sizes ansiso, din and jis bolts. We provide to our patrons optimum quality high tensile stud bolts flange. Similarly, we are probably aware that india is one of the biggest grade 8. 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. For fasteners and fixings, high tensile steel is some of the best material on offer and can be found in a number of.
High tensile hex bolts, high tensile u bolts, high tensile hexagon bolts, high tensile unf bolts, high tensile unc bolts we are a specialized in making high tensile bolt, we produce these bolts with iso 9001. These high tensile allen bolts are stringently examined on various quality parameters to ensure their following feature. Iso 724 metric threads dimensions of metric threads according iso 724. Head marking class and material nominal size range mm mechanical. Therefore, the strength increase in large a325 and f1852 bolts does not. High tensile fasteners manufacturers high tensile fasteners, high tensile fasteners 8. Our reps are wellversed in national standards and regulations and will consult with the project manager to advise on the correct structural bolts. Mitra industries industrial fasteners manufacturers, automotive fasteners manufacturers, industrial fasteners exporters, automotive fasteners exporters, mitra fasteners, high tensile fasteners, mitra fasteners india, fasteners manufacturers, industrial fasteners suppliers, automotive fasteners suppliers, fasteners exporters, automotive fasteners, general fasteners exporters, industrial. The same type of screw or bolt can be made in many different grades of material. These fasteners are used to mechanically join or affix other hardware objects together, and come in many forms which include rivets, nuts, bolts, studs. Sep 11, 20 a490 covers heavy hex structural bolts tensile strength of 150 to 173 ksi and currently, astm standards do not allow hotdip galvanizing of a490 bolts for corrosion protection.
High tensile stud bolts for sale we endeavor to be a full service supplier and manufacturer in the diameter range from m5 to m20 with a maximum part length of 300mm. Varun fasteners is ludhiana, punjab based company, specializes in the manufacturing of mild steel and high tensile hex bolts, hex screw, hex nuts, studs, fully threaded rods, carbon steel thread bars, coil rod tie rods, tailor made items as per drawings specification special bolts for a wide range of applications in the oil, petrochemical. We provide these products as per the needs of our clients. With the help of our skilled professionals, we are capable of offering a wide array of high tensile bolts. Formerly under the jurisdiction of committee f16 on fasteners, this specification was withdrawn in may 2016 and replaced by specification f3125f3125m for high strength.
1179 1269 1357 262 898 1525 942 743 754 375 1147 251 658 1115 858 331 1017 873 1175 120 442 1346 1119 226 53 1348 435 137 40 683 376 1090 1245 67 788 1102