Feb 15 2019 nbsp 0183 32 The higher the grade the stronger the bolt English bolts have radial lines on their head to identify the grade or strength class The number of lines on the bolt head is 2 less than the actual grade So for example a grade 5 bolt will only have 3 radial lines on its head A grade 8 bolt will have 6 radial lines on its head
U S Recommended Bolt Torque Table Size Recommended Torque Grade 2 Grade 5 Grade 8 18 8 S S Bronze Brass Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine 4 5 2 4 8 4 3 6 Grade 2 5 and 8 values are for plated bolts
These metric bolt torque charts show the ideal tightening torque for class 8 8 10 9 and 12 9 bolts for both wet and dry tightening The bolt s class indicates its material strength with higher numbers meaning higher tensile and yield strength The classes are set by the International Standards Organisation or ISO
Class 12 9 Hex Head Bolts and High Tensile Grade 12 9 Allen Bolt manufacturer in India 12 9 Metric Bolts are headed externally threaded fasteners which is used to keep two objects usually metal or wood in a fixed position it is relative to one another Grade 12 9 Bolts is a high tensile bolt It is available which us in different shapes and types
Bolt Torque Calculator Calculate required bolt torque Improvised Torque Wrench Improvise a torque wrench with a luggage scale ISO 724 Metric Threads Dimensions of metric threads according ISO 724 Metric Bolt Head and Wrench Size ANSI SO DIN and JIS bolts
ASTM A307 grade C has been replaced by ASTM F1554 grade 36 Grade 2 requirements for diameters ranging from 1 4 quot through 3 4 quot only apply to headed fasteners up to and including 6 quot in length and to studs of all lengths
Metric Bolt Thread Pitch Chart So what is a thread s pitch on a bolt As fastener manufactures we got you covered Bellow are ISO DIN accepted thread pitch charts for commonly found metric fasteners Here is Lightning Bolt s Metric Bolt Thread Pitch Chart
American Bolts No Markings Grade 2 Low or Medium Carbon Steel 1 4 thru 3 4 55 000 57 000 74 000 Over 3 4 thru 1 1 2 33 000 36 000 60 000 3 Radial Lines Grade 5 Medium Carbon Steel Quenched and Tempered 1 4 thru 1 85 000 92 000 120 000 Over 1 thru 1 1 2 74 000 81 000 105 000 6 Radial Lines Grade 8
For example a grade 12 9 bolt will begin to stretch when the load on the bolt is 90 of the breaking load Similarly a grade 9 8 bolt will begin to stretch at 80 of its breaking load The strength grade marking is more difficult to see on metric nuts sometimes it is given as a number sometimes as a pattern of a dot and a line where the
Bolt Grade Markings amp Strength Chart Inch Steel Bolts Head Marking Bolt Grade Specification Material Nominal Size Inch Proof Load psi Tensile Strength Min psi Yield Strength Min psi Rockwell Hardness Min Max Grade 1 SAE J429 Bolts Screws and Studs Low or medium carbon steel 1 4 quot 1 1 2 quot 33 000 60 000 36 000 B70 B100 Grade 2 SAE
Purchase Grade 10 9 Bolt from manufacturer in India View Class 10 9 Alloy Steel Hex Bolts Dimension Check Price List of Grade 10 9 Nut Stock of HT Class 10 9 Studs High Tensile Grade 10 9 Screw in India Call us at 91 22 6610 9925
SAE bolt grades indicate the strength of the bolt Each bolt grade has an ideal tightening torque for maximum clamping force without breaking Grade 2 bolts are cheap but not very strong grade 8 bolts are the strongest and most expensive and grade 5 bolts are the most common Refer to the charts to find the ideal tightening torque
05 11 2019 nbsp 0183 32 Click here Printable Metric Bolt Grade Chart PDF Printable Chart for easy comparison between Metric Bolt Classes and US grades equivalents Head Markings Metric Bolt Class Mechanical Properties Proof Load MPa Min Yield MPa Min Tensile Strength MPa Class 12 9 Alloy Steel quenched and tempered 970 1 100 1 220 Class 10 9 Alloy Steel
Nov 05 2019 nbsp 0183 32 Chart for easy comparison of US Metric screws and bolts It is always a bit unusual to compare them as they use different measurement systems PSI vs Mpa 180 000 SAE Grade 8 150 000 SAE Grade 5 120 000 116 000 101 530 75 420 SAE Grade 2 74 000 58 020 1 220 Class 12 9 1 040 Class 10 9
23 rows nbsp 0183 32 US Bolts Head Marking Grade and Material Nominal Size Range inches
Bolt Grade Markings and Strength Chart Print this page US Bolts Head Marking Grade and Material Nominal Size Range inches Mechanical Properties Proof Load psi Min Yield Strength Grade A325 Carbon or alloy steel with or without boron 1 2 quot thru 1 1 2 quot 85 000 92 000 120 000
Flanges ASME ANSI B16 5 Flanges and Bolt Dimensions Class 150 to 2500 Diameters and bolt circles for standard ASME B16 5 flanges 1 4 to 24 inches Class 150 to 2500 Forged Steel Flanges Stud Charts Number of studs diameter and length for ANSI forged steel flanges ranging class 150 to 1500
Major diameter The largest and most outer diameter of a bolt s shank Pitch diameter The diameter where the thread thickness the space between threads Minor diameter The smallest and most inside diameter of a bolt s shank Bolt Size Chart Refer to the table for dimensions of commonly used bolt sizes
23 Section 6 Appendix 12 21 01 RCR15 Series Rotary Cutters 312 556M Land Pride Section 6 Appendix Torque Values Chart for Common Bolt Sizes in tpi1 N 183 m2 ft lb3 N 183 m ft lb N 183 m ft lb mm x pitch4 N 183 m ft lb N 183 m ft lb N 183 m ft lb 1 4 quot 20 7 4 5 6 11 8 16 12 8 436597
ASTM A325 Bolt Dimensions Chart Sizes Strength ASTM A325 bolts are one of the most commonly used fasteners usually used for structural steel connections in heavy steel structures
Hex Bolt Identification Markings and Strength Chart Additonal information on bolts is located at the bottom of the webpage Note Some bolts share identical head identification and have significantly different strengths
Bolt torque chart reference guides include Grade 2 B7 A307 A325 Grade 8 A490 and Grade 5 AFT Fasteners is your trusted source for fastener information
Trying to make sense of all the different screw and bolt thread lengths can be a real challenge even for the most knowledgeable of professionals Are you finding yourself a little confused or do you need a quick refresher Never let thread length get the best of you with our help from ASMC
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
Mechanical Property Requirement Comparison Between A325 amp F3125 Grade A325 Below is a chart comparing the mechanical property requirements for A325 versus F3125 Grade A325 As you can see the requirements are identical through 1 diameter but beyond that F3125 Grade A325 has a higher minimum strength requirement
This chart helps to identify the grades of bolts using the identification marks on the bolt s head along with the strength and hardness of common grade bolts Please note the bolt heads may also include the manufacturer s identification stamp especially with high strength bolts
Therefore all you have to do is look at a hex bolt dimensions chart and you will find everything you need to know And regardless if you are looking for a grade 5 hex cap screw or a grade 8 hex cap screw their dimensional measurements will be identical Only the material that they are made from is different
Grade 12 9 Bolt is a high tensile bolt that has a diameter of 12 9 mm and the lengths vary from 20mm to 200mm based on the application requirement Navstar Steel is a leading manufacturer and supplier of the Grade 12 9 Bolt in different types and shapes There are studs hex bolts U bolts T bolts and many other types in this grade
Grade BB Bolts Studs Alloy Steel Quenched and Tempered 1⁄4 thru 2 189 2 190 thru 4 80 000 75 000 83 000 78 000 105 000 100 000 ASTM A354 Grade BC Bolts Studs Alloy Steel Quenched and Tempered 1⁄4 thru 2 189 2 190 thru 4 105 000 95 000 109 000 99 000 125 000 115 000 ASTM J429 Grade 7 Bolts and Screws Medium Carbon Alloy Steel
Metric bolt conversion data for industrial bolts rods machine screws and small diameter fasteners from Raaj Sagar Steels includes metric to standard bolt conversions The chart below shows metric bolt conversions and DIN numbers for fasteners