Bolts can come fully or partially threaded depending on the bolt type International Organization for Standardization ISO standards for threads are length is twice the diameter of the bolt plus 1 2 inch If you are looking for fully threaded bolts please call direct at 800 872 5557 35 rows nbsp 0183 32 DIAMETER BODY DIAMETER The smallest or largest pitch diameter that fits onto a screw or into a nut including all of the form deviations such as lead thread angle taper and roundness Functional diameter is a measure of the ability to assemble the thread THREAD BOLT THREADS Bolts and Machine Screws Metric Presented on this page is our current range of metric threaded bolts and machine screws to be used in conjunction with the equivalent metric sized nuts and washers Westfield Fasteners carries stock of each size and type in our warehouse ready for immediate despatch Part Diameter Imperial 1 4 to 4 in Part Diameter Metric M6 to M18 Maximum Part Length Up to 72 in Metric Blank Diameter M6 x 300 through M64 x 500 Fastener Types 12 Point Carriage Bolt Flat Head Socket Screw Hex Cap Screw Hex Flange Metric Socket Head Cap Screw Square Head Structural Bolt Tap Bolt Head Types Hexagonal Square Round Largest range of all types of bolts and nuts socket screws washers machine screws rivets screws self drillers boat hardware masonry fasteners Metric to Imperial Chart JavaScript seems to be disabled in your browser

Hex Bolt Dimensions DIN 933 amp ISO4017 amp UNI5739 DIN 931 amp ISO4014 amp UNI5737 DIN 558 amp ISO4018 BS 1083 BS 1768 ASME B18 2 1 DIN EN14399 4 DIN 601 amp ISO 4016 amp CSN 21301 amp EU 24016 DIN 7968 DIN 7990 amp CSN 21308 Metric Hex Bolt Dimensions Atlanta Rod and Manufacturing Manufacturing of Bolts Concrete Embeds Construction Fasteners and Stainless Steel Bolts – Atlanta Rod and Manufacturing Common metric dimensions for hex bolts We manufacture non standard and specialty large diameter nuts and bolts Our nut diameter capability ranges in size from 3 8 to 3 and in metric sizes from M12 to M100 depending on the material and grade Our bolt capability ranges from 3 8″ to 2 1 2 in diameter depending on the material and specification DIMENSIONS FOR METRIC BOLTS The charts below gives the dimensions for Hexagon head Socket cap Low head socket cap Socket countersink Socket button and Shoulder screw with Metric Threads Dimensions shown are in mm if you wish to convert to Inches please use our universal converter We also have information on Imperial and Unified Bolts Body Diameter There may be a reasonable swell or fin under the head or die seam on the body not to exceed the basic bolt diameter by the following 0 030 quot for

Large diameter bolts are produced by hot forging or bright turning Ship turbines and power station turbines require very large bolts to keep the turbines in place M100 diameter are available from a number of producers in the bright condition and hot The ASTM A490 specification covers quenched and tempered alloy steel heavy hex structural bolts from 1 2 quot diameter through 1 1 2 quot diameter with a minimum 150 ksi tensile A490 bolts are similar in application and dimensions to A325 Hex Cap Screws heavy hex structural bolts but are made from an alloy steel rather than a medium carbon steel resulting in a higher strength Metric nut comparison dimensional data and technical information shown on the fastenerdata website is in the public domain and has not been acquired through the standards agencies it has been completed and compiled by fastenerdata and is for guidance only where discrepancies are found they are subject to change without notice fastenerdata makes no warranties or Metric Bolt Head Wrench Size Print this page Bolt Diameter mm Head Wrench Size mm ANSI ISO DIN30 12 2020 nbsp 0183 32 What is a M6 bolt size M6 refers to a metric 6 mm screw The outside diameter of the threads is 6 mm The standard metric rack screw is actually an M6 x 0 1 mm The number 0 1 mm refers to 0 1 threads per millimeter What does M8 x 1 25 mean For metric fasteners you will see a M8 x 1 25 or an M8 x 1

Portland Bolt manufactures heavy hex bolts from 1 2″ diameter through 2 1 2″ diameter in most ASTM AASHTO and SAE specifications Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company s name and or logo Metric bolts are made fractionally under their stated size for instance an M16 bolt will have a shank diameter of typically 15 97mm This means that a 16mm bolt will fit through a 16mm hole but to allow for misalignment between parts it is common practice to drill bolt holes slightly larger These are known as clearance holes Bolt Thread Length Per ASME B18 2 1 the nominal thread length of inch series bolts can be found by where L is the total bolt length and d nom is the nominal bolt diameter Hex Bolt Head Dimensions The following table of hex bolt head dimensions was adapted from ASME B18 6 3 Table 29 quot Dimensions of Plain Unslotted and Slotted Regular and Large Hex Head Screws quot 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 2 7 2015 nbsp 0183 32 Contact Us Direct Number 817 467 1377 800 Number 800 361 6627 Fax Number 817 467 5365 1916 Peyco Drive North Arlington TX 76001 Email

Metric hex head bolts grades 8 8 and 10 9 in a wide variety of sizes Enjoy our huge metric fastener selection Choose from metric hex flange and lock nuts with coarse or fine thread Metric hex nuts grade 8 8 and 10 9 Plain black metric socket head cap screws with coarse thread grade 12 9 Metric flat and lock washers grade 8 8 and 10 9 J Bolts Shoulder Bolts J shaped bolts are used for tie downs or as an open eye bolt Shoulder bolts also known as stripper bolts are used to create a pivot point Elevator Bolts Elevator bolts are often used in conveyor systems They have a large flat head Similar to an eye bolt but with wood threads instead of machine thread 8 11 2021 nbsp 0183 32 Use the below bolt hole clearance chart for Metric size bolts and screws This table shows how to determine the clearance hole size for a bolt For example an M3 bolt with a medium fit would have a 3 4 mm clearance hole Nominal Thread Diameter mm Clearance Hole Sizes mm 36 rows nbsp 0183 32 The defined diameter of metric bolts is actually slightly larger than the actual Large Stocks of Metric amp Imperial Bolts and Nuts More than 200 tonnes of finished Metric BA BSF BSW Whitworth UNF amp UNC nuts and bolts are held in stock as well as semi finished blanks that can be converted quickly to make special sizes