Astm, sae and iso grade markings for steel fasteners. Covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in diameters through 112 asme b18. Sae j429 grade 1, astm a307 grade a are low carbon steel strength grades with. Recommended clamp load based on 75% of cap screws proof load. Hex bolts grade 5 and 8 domestic submittal specifications abstract of sae j429 chemical requirements chemical analysis shall be performed in accordance with sae j429 carbon min max phophorous min max sulfer min max grade 5 0. Buy custom sae j429 grade 8 fasteners created with sae j429 in shortest delivery time. Identification grade mark specification fastener description material. For headed fasteners longer than 6, see sae j429 grade 1. Sae j429 is a spec that is intended for use in the automotive and similar industries. Category fasteners sub category bolt type hex head standard sae j429 grade grade 5 material steel coating. Mechanical and quality requirements for externally. This sae standard covers the mechanical and material requirements for inchseries steel bolts, screws, studs, screws for sems, and ubolts used in automotive and related industries in sizes to 1 12 in inclusive.
Sae j429 grade 8 fasteners manufacturers sae j429 grade 8. Sae j429 also covers a number of less common grades including 1, 4, 5. Sae j429 bolts from glaser and associates are available in three grades, 2, 5 and 8, offering different mechanical and. These material specifications differ, however, in that astm a325 and a490 specify thread length and head size, whereas sae j429 does not. Sae j 429 2014 sae j4292014 mechanical and material requirements for externally threaded fasteners. Our sae j429 grade 8 fasteners are widely used in number of industries such as aerospace, defense, automotive, petrochemical, waste processing, marine and pharmaceutical sectors. Allow higher s and p percentages in alloy steel than allowed in table 2 for manufacturing grade 8 screws and bolts by hot forging or machining from bar. The 8thread series 8un is a uniformpitch series for. They are generally manufactured from variants of medium carbon steel. Astm a354 bd is used for structural bolts while sae j429 grade 8 is an automotive specification.
Throughhardened alloy steel tensile strength up to 200,000 psi maintains. Sae j429 is a society of automotive engineers specification for fasteners. The table listed below shows the recommended clamp loads for grade 2, 5 and 8 assemblies per sae j429 and j995. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Table 3 suggested torque values and clamp loads for sae. Bowmalloy fastening system class c solutions group. Sae j429 covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in sizes to 112 inclusive. These properties are valid within a temperature range which depends upon the material grade used and thermal and mechanical processing. Hex bolts, sae j429 grade 8, plain the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. There are three common grades 2, 5 and 8 that readily available or can be made as fully threaded rods. As per grade 5 or 8 boltsscrews made to grades 5 and 8 as per sae j429 will also generally conform to requirements of bs 1768 grade s and v respectively. Download a complimentary pdf of our fastener markings chart.
Covers the complete general and dimensional data for multiple types of inch series square and hex bolts and screws. This sae standard covers the mechanical and material requirements for inchseries steel. Sae j429 specification sae j429 bolts fasteners jf engg. Grade 2 requirements for diameters ranging from 14 through 34 only apply to headed fasteners up to and including 6 in length, and to. This technical information is supplied as a courtesy.
Sae j429 covers fasteners sizes up to 112 inclusive. By the authority vested by part 5 of the united states code 552a and. The grade 8 steel hex bolt has a phosphate and oil finish, has a nonserrated flange hex head with an external hex drive, and meets industrial fasteners institute ifi 111 and society of automotive engineers. Used in automotive and related industries, these fasteners can be found in small quantities in automotive and home improvement stores. Sae publicationsavailable from sae, 400 commonwealth drive, warrendale, pa 150960001. Sae j429 covers a number of other grades and grade variations not. Sae j429 covers a number of other grades and grade variations not covered in this summary, including 4, 5. Contact american fastener with any questions or for a custom quote. Part 1 of the code of regulations 51 the attached document has been duly. Category fasteners sub category bolt type hex head.
Sae j429 covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in diameters through 112 the summary below covers the most common grades. Sae j429 covers the mechanical and material requirements for inch series fasteners used in. Many times a print will come in to be quoted with material called out to be grade 8, grade 4. Sae j429 bolts from glaser and associates are available in three grades, 2, 5 and 8, offering different mechanical and chemical properties for specific applications. Hex bolts grade 5 and 8 domestic submittal specifications abstract of sae j429 chemical requirements chemical analysis shall be performed in accordance with sae j429 carbon min. Mechanical properties of externally threaded fasteners in. The term stud as referred to herein applies to a cylindrical rod of moderate length threaded on either one or both ends or throughout its entire length. Sae j429 grade 2 grade 2 cap screws are manufactured in accordance with sae j429 and must meet hardness requirements of 80100 hrb for diameters up to and including 34 and 70100 hrb for sizes over 34 diameter. High visibility grade markings 12 raised radial lines, barnes distributions symbol of alloy steel rated higher than sae grade 8. Astm a307 grade c has been replaced by astm f1554 grade 36. Mechanical and quality requirements for externally threaded fasteners. Grade 8 steel is often used in applications where strength is the primary concern plain surface has no finish or coating external hex drive tightens from the side with a wrench, enabling use when there is no.
There are different types of grades for this spec that cover. Sae j429 grade 8 hex head cap screws sts industrial. Used in automotive and related industries, these fasteners can be found in. Sae j429 grade 8, astm a490 plain hc08000d zinc hc080z1d sae j429 grade l9, astm f606 note 1 zinc hcl90z1 tap boltsfully threaded hct020 hct050 hct080 d f c. Chemical properties of steel fasteners us korea hotlink. Medium carbon steel, 14 thru 34 over 34 to 112, 55,000 33,000, 57,000. Sae j429 is the standard specification for inchseries steel bolts, screws, studs, sems screws and ubolts in sizes up to and including 112 inches. As an example, this enables producers of grade 8 bolts and screws to use sae 4140 steel that might not otherwise be acceptable for hot. By order of the executive director office of the federal register washington, d. In the sae system, grades are designated by numbers from 1 through 8. Sae j121decarburization in hardened and tempered unified threaded fastenerssae j123surface discontinuities on bolts, screws, and studssae j403chemical compositions of sae carbon steelssae j404chemical composition of sae alloy steels. Sae j 429 2011 sae j4292011 mechanical and material requirements for externally threaded fasteners.
Grade 2 requirements for diameters ranging from 14 through 34 only apply to headed fasteners up to and including 6 in length, and to studs of all lengths. Astm a193 grade b7, sae j429 grade 8 and astm a574 socket head cap screws are all made from. Grade 5 per sae j429, zincclear plated per astm b633. Square head bolts, sae j429 grade 5, plain finish the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order.
The strength properties of sae j429 grade 5 bolts and astm a325 bolts are identical. Sae j 4292014 sae j4292014 mechanical and material. Glossary of fastener terms the bolt supply house ltd. One notable difference between iso 8981 2009 and sae j429 2012 is that the minimum carbon level is higher for grade 8 than for class 10. Standard h grade steels are acceptable substitutes as are nonstandard steels which fit the definition of carbon and alloy steels in sae j411. The j429 specification covers requirements for fasteners used for automotive purposes, oem applications, and other related industries. Posts about sae j429 written by speakingofprecision. Astm, sae and iso grade markings for steel fasteners american. The grade 8 steel hex bolt has a phosphate and oil finish, has a nonserrated flange hex head with an external hex drive, and meets industrial fasteners institute ifi 111 and society of automotive engineers sae j429 specifications. Sae grade 2 sae grade 5 sae grade 8 sae j429 grade identification suggested torque values all torquetension relationships should be viewed with a cautious eye since no one table can indicate the. Sae j429 revised jan1999 sae j411carbon and alloy steels sae j417hardness tests and hardness number conversions sae j1061surface discontinuities on general application bolts. Hex head bolt sae j429 grade 8 steel plated high strength. Class 1a and 1b classes 1a and 1b are very loosely toleranced, therefore, this class produces the loosest fit.
In addition this revision corrects a few errors and inconsistencies discovered since the publication of the 2011 revision. Sae grade 2 sae grade 5 sae grade 8 sae j429 grade identification suggested torque values all torquetension relationships should be viewed with a cautious eye since no one table can indicate the range of conditions expected to be experienced by a fastener. Sae j429 revised jan1999 sae j411carbon and alloy steels sae j417hardness tests and hardness number conversions sae j1061surface discontinuities on general application bolts, screws, and studs sae j1086numbering metals and alloys sae j1268hardenability bands for carbon and alloy h steels. Mechanical and quality requirements for externally threaded fasteners author. Sae j429 grade 5 fasteners are typically used in the automotive industry or oem type applications, but much like astm a449, are very similar mechanically and chemically to astm a325. The wedge tensile strength requirements are 74,000 psi minimum for diameters up to and including 34 and. As an example, this enables producers of grade 8 bolts and screws to use sae 4140 steel that might not otherwise be acceptable for hot forging and machining from bar. Sae grade 8 and astm grade bd cap screws are nearly identical, with the only exception being the. This sae standard covers the mechanical and material requirements for inchseries steel bolts, screws, studs, screws for sems, and ubolts in sizes to 112 in. Mechanical properties proof loadpsi yield strength min psi tensile strength min psi nogrademark sae j429 grade 1 bolts, screws, studs low or medium carbon. Mechanical and quality requirements for externally threaded fasteners see other formats a by authority of the united states of america legally binding document by. Medium carbon steel bolts in sae j429 grades 2, 5 and 8. Sae j429 grade 2 grade 2 cap screws are manufactured in accordance with sae j429 and must meet hardness requirements of 80100 hrb for diameters up to and including 34 and 70100 hrb for sizes. Sae j 4292011 sae j4292011 mechanical and material.
This sae standard covers the mechanical and material requirements for inchseries steel bolts, screws, studs, screws for sems 1, and ubolts 2 in sizes to 112 in. Identification grade mark specification fastener description material nominal size range in. The 8 thread series 8un is a uniformpitch series for. Page 5 of 99 page 5 of 99 serrated flange bolt bolts from hill sae 8. J429 gr5 j429 gr8 astm a354 gr bc astm a354 gr bd astm a193 gr b7 astm a193 gr b16 astm a325 type 1 astm a325 type 3 astm a490 low or medium carbon steel. Grade 8 steel, composed of quenched and tempered medium carbon alloy steel, is stronger than grade 5 steel and is. Grade g 14 thru 5 8 150,000 grade 8 sae grade for sizes. Sae j429 grade 8 bolts, screws, studs medium carbon alloy steel, quenched and tempered 14 thru 112 120,000,000 150,000 astm a354 grade bd alloy steel, quenched and tempered4 no grade mark sae j429 grade 8. Mechanical properties of externally threaded fasteners.