bolt nut 12 9 grade bolt

When a bolt has a grading of s, it means that it can withstand a stress of 45 to 49.9 metric tonnes per 6.45 cm². this grading, which is typically stamped on the head of the bolt, has the same tensile strength as a grade 8.8 bolt. bolts labelled with the grade 8.8 or s are solid, heavy duty bolts that can be used for a variety of tasks.
8.8 grade bare steel/zinc plated; 12.9 grade bare steel/zinc plated; 12.9 grade bare steel fine thread; a2/a4 stainless steel; din 7991 / iso 10642 flat head countersunk socket. 10.9 grade bare steel/zinc plated; a2/a4 stainless steel; iso 7380 button head socket. 10.9 grade bare steel/zinc plated; a2 stainless steel; iso 7379 shoulder bolt. 12 ...
For the 10.9 bolt, the 9 tells the user that the yield strength of the bolt is approximately 90% of the first number: 1,000 mpa. thus, the 10.9 bolt has an approximate yield strength of 900 mpa (940 mpa by specification). two other common symbols that are included
Jan 23, 2009 · hello, i have been asked to quote for some special bolts with 12.9 spec but i cannot find grade of material and heat treatment to use. can anybody help.

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  • What are the different grades of bolts? hunker

    The higher the iso numbers are, the stronger the bolt. a metric bolt designated as iso class 6.8 roughly corresponds in strength to an sae grade 2 bolt. bolts of iso class 8.8 and the slightly stronger class 9.8 roughly correspond to an sae grade 5 bolt. an iso class 10.9 bolt roughly corresponds to an sae grade 8 bolt.

  • Understanding the grading of high tensile bolts

    When a bolt has a grading of s, it means that it can withstand a stress of 45 to 49.9 metric tonnes per 6.45 cm². this grading, which is typically stamped on the head of the bolt, has the same tensile strength as a grade 8.8 bolt. bolts labelled with the grade 8.8 or s are solid, heavy duty bolts that can be used for a variety of tasks.

  • Bolts and nuts, hex cap screws and fasteners online

    Boltsandnuts has a large selection of wholesale bolts and nuts, washers, hex cap screws, & other fasteners. fast shipping & no order minimum!

  • Common automotive fasteners guidenapa know how blog

    Metric 12.9 . these common automotive fasteners are tempered and quenched alloy steel and quite strong. they are stronger than grade 8 bolts, and used in the same instances. metric bolt heads include the number grade. proof load (max non-deformation): 140,000 psi . yield strength (min deformation load): 160,000 psi

  • Iso 7379 shoulder bolt grade 12.9 : fuller fasteners

    8.8 grade bare steel/zinc plated; 12.9 grade bare steel/zinc plated; 12.9 grade bare steel fine thread; a2/a4 stainless steel; din 7991 / iso 10642 flat head countersunk socket. 10.9 grade bare steel/zinc plated; a2/a4 stainless steel; iso 7380 button head socket. 10.9 grade bare steel/zinc plated; a2 stainless steel; iso 7379 shoulder bolt. 12 ...

  • Common automotive fasteners guidenapa know how blog

    Metric 12.9 . these common automotive fasteners are tempered and quenched alloy steel and quite strong. they are stronger than grade 8 bolts, and used in the same instances. metric bolt heads include the number grade. proof load (max non-deformation): 140,000 psi . yield strength (min deformation load): 160,000 psi

  • Metric steel boltsgrades and property classes

    Steel boltsmetric grades ; steel boltssae grades ; for metric bolts strength is according iso 898 mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9.

  • Hex bolt identification, markings and strength chart table ...

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  • Glarks 510pcs m3 m4 m5 12.9 grade alloy steel socket cap ...

    Glarks 510pcs m3 m4 m5 12.9 grade alloy steel socket cap bolts screws with nuts assortment kit, black oxide finish product type: high precision socket cap bolts screws material: made of 12.9 grade alloy steel; color: black feature: socket cap screws are threaded fasteners that have a cap head with an internal socket drive for installing in areas with limited side clearance that makes it not ...

  • 12.9 boltsmaterial grade and heat treatmentcr4 ...

    Jan 23, 2009 · hello, i have been asked to quote for some special bolts with 12.9 spec but i cannot find grade of material and heat treatment to use. can anybody help.

  • Us & metric bolt torque by grade

    Metric bolts maximum torque, in foot-pounds, for clean, dry threads check your shop manual!; bolt size low grade grade 8.8 grade 10.9 grade 12.9; 6mm: 3-5

  • Determining bolt grades & understanding head markings

    Determining bolt grades & understanding head markings the nut and bolt solution series. identifying bolt grades and head markings for us grades 2, 5 and 8. metric grades 8.8.,10.9 and 12.9 (socket products). video 1: determining bolt grade and head markings

  • Torque tightening values for structural steel bolts ...

    Torque tightening values for structural steel bolts below is a list of the recommended tightening torques for 12.9 / 10.9 / 8.8 zinc plated finish bolts. maximum recommended tightening torques

  • Bolting property classes 8.8 10.9 12.9 & 14.9

    The symbol for the property classes of hex bolts, screws and studs consists of two numbers separated by a decimal point. 8.8, 10.9, 12.9, 14.9 etc. take the whole number before the decimal point. this number, when multiplied by a hundred, gives you the nominal tensile strength in …

  • Strength of sae vs. metric bolts?

    Jul 27, 2015 · the softer stuff is garbage, for example the atrocious 4.6 nonsense from china, the kind of bolt i remove by tightening, if encountered in a nut-bolt combination, naturally. 10.9 and 12.9 is used for "engineered" screw connections, those which have been calculated and …

  • Metric steel boltsgrades and property classes

    Steel boltsmetric grades ; steel boltssae grades ; for metric bolts strength is according iso 898 mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9.

  • Buy bolts and nuts online shop wholesale bolts and nuts

    Buy wholesale fasteners online at boltsandnuts. buy by the piece, package, or in bulk with no order minimums and free shipping on orders over $25!

  • Metric system & specifications fastenal

    For the 10.9 bolt, the 9 tells the user that the yield strength of the bolt is approximately 90% of the first number: 1,000 mpa. thus, the 10.9 bolt has an approximate yield strength of 900 mpa (940 mpa by specification). two other common symbols that are included …

  • 12-point flange bolts12 point bolt supplier aft fasteners

    All sizes of 12-point flange bolts have a minimum tensile strength of 170,000 psi, a minimum rockwell hardness of c37, and a class 3a thread fit. astm a387 grade 9 is categorized as alloy steel. many of our 12-point flange bolts are currently listed as request for quote, which allows us to offer you the best pricing available.

  • 12.9 boltsmaterial grade and heat treatmentcr4 ...

    Jan 23, 2009 · hello, i have been asked to quote for some special bolts with 12.9 spec but i cannot find grade of material and heat treatment to use. can anybody help.

  • Metric bolt grades and strength calculator

    Shows proof strength and tensile strength of metric bolts and screws made of stainless steel. metric thread size and tolerance calculator: calculates basic major, minor and pitch diameters of the metric external (bolt) thread and internal (nut) thread according to iso 724:1993 standard.

  • Grade 8 bolts mcmaster-carr

    The thicker, domed head on these bolts provides greater wear resistance than flat head plow bolts. the underside of the head is angled to sit flush within countersunk holes for use on heavy equipment, such as plows. the square neck keeps these bolts from turning when tightening a nut.

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