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standard bolt identification markings

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Hex Bolt Identification Markings and Strength Chart Table Guide

Bolt head markings allow you to visually identify bolt grades quickly and easily But first you should know the difference between standard and metric fasteners The ratings for standard bolts often identified as SAE and metric hardware aren t interchangeable 2021 4 11 nbsp 0183 32 Figure 4 Here we have a bolt head with the Wilson Garner manufacturer mark and six radial lines These radial lines indicate that the bolt is a Grade 8 bolt A quick aside – You may notice that in the images the WG mark has been moved around a bit to accommodate the grade markings This is a totally legitimate practice

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How to Identify Stainless Steel Bolts and Head Markings

US Bolts Head Marking Grade and Material Nominal Size Range inches Mechanical Properties Proof Load psi Min Yield Strength psi Min Tensile Strength psi 307A Low carbon steel 1 4 quot thru 4 quot N A N A 60 000 No Markings Grade 2 Low orx Bolt 1 550 Hupp warren Ml 48089 End Ot pont optanal parts parts A J Fasteners Inc 252 Kruse Ave Monrovia CA 91016 Akko Fastener Inc 6855 Cornell Rd Cincinnati OH 45242 Standard Metric marking marking marking Albany Fasteners 327 Pine st

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FASTENER REFERENCE GUIDE

Bolt Identification Examples Imperial Size Bolt Identification Example An Imperial size bolt that is identified as 3 8 quot x 2 quot x 24 Has a shank diameter of 3 8 inch Is 2 inches long from the bottom of the head to the end of the bolt Has 24 threads per inch Metric SizeAircraft Bolt Identification Guide Table ISO Metric Hardware ANSI Hardware Guide Hardware Supplier amp Manufacturer Military Aerospace Hardware Selection Guide Aircraft hardware is identified for use by its specification number or trade name Threaded fasteners

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Bolt Grades And Markings EICAC

Bolts Screws Studs 60 000 Bolts Screws Studs ASTM A307 Grades A amp B 60 000 STANDARD BOLT IDENTIFICATION MARKINGS Identification Grade Mark Specification Fastener Description Material Nominal Size Range in This technical information is2015 7 1 nbsp 0183 32 Fastener Identification Chart Technical Menu Posted on July 1st 2015 by vapro View the Fastener Identification Chart for All Pro Threaded Products

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Fastener Identifi cation Markings ASTM SAE ISO

Identifying Bolts by Thread Pitch In the picture to the left you can see 3 bolts that look very similar at first glance when lying around your work bench The first two are 1 4″ diameter and the last one is 6mm As you can see the thread pitch of the coarse metric bolt is much finer than a coarse thread standard bolt INSTRUCTIONS FOR IDENTIFICATION FOR BOLTS AND STUDS SPECIFICATION AND MATERIAL CODES GRADE MARKING REQUIRED MARKINGS ASTM A 490 Type 2 Heavy Series A 4 9 0 X Symbol for identification of grade i e A490 applied to

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Deciphering Bolt Head Markings Mudge Fasteners

24 rows nbsp 0183 32 Bolt Grade Markings amp Strength Chart Metric Steel Bolts Head Marking 60 000 psi minimum In 1987 head marking requirements changed from requiring no grade identification Square and Hex Head Bolts and Screws Inch Series TDS 005A 2 15 08 bolt identification and grade markings SAE J429 Grade 2 ASTM A307 Grade A

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How To Identify Stainless Steel Bolts And Head Markings –

Head Markings Fastener manufacturers product identification starts with the manufacturer s symbol marked on the head all high grade fastener product contains the manufacturers mark along with the material grade Low Temperature bolt head markings logical bolt head markings chart bolt head identification chart sae bolts titanium fasteners bolts nuts screws titanium Fastener Torque Specifications If there are no numbers or lines present assume the bolt is no better than a grade 2 low strength 4 Marking of nuts