Steel Threaded Rods Grade B6 Stronger and more wear resistant than 18 8 stainless steel these threaded rods are mildly chemical resistant They meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks valves and flanges 1 The maximum loads in the table above are based on allowable tensile stress of 12 kpsi reduced by 25 to 9 kpsi allowable stress 1 kg 9 81 N Threaded Rods Proof Load Capacities in Metric Units Mass and Weight the difference Note that hangers supporting steam water air or gas piping systems should be able to carry the weight of piping insulation valves GRADES All America Threaded Products manufactures grade 55 S1 that can be supplied in lieu of grade 36 The material used to manufacture Grade 55 S1 meets the conditions for the Supplementary Requirement meeting both grade 36 and 55 specifications The S1 Supplementary Requirement is for a weldable grade 55 product According to EN ISO 898 1 there s an approved color marking for threaded rods serving for better orientaiton which class rods are Marking shall be divided into the following groups according to rods mechanical properties Grade 4 8 – no marking Grade 5 6 colour brown RAL 8015 Grade 5 8 colour blue RAL 5010This 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

Material amp Mechanical Properties Purchased to meet ASTM A307 Grade A Zinc Plating Purchased to meet F1941 FeZn3A Hot Dip Galvanized Purchased to meet ASTM A153 Tensile Strength 60 000 PSI minimum Size TPI PSI Pounds Size TPI PSI Pounds 1 4 20 60 000 1900 1 4 28 60 000 2180 5 16 18 60 000 3100 5 16 24 60 000 3480No Grade Mark SAE J429 Grade All Pro Threaded neither employs nor maintains an engineering or technica l staff and All Pro is merely supplying certain manufacturing technical and or design specifications and data r eceived by All Pro Threaded from the products manufacturer or taken from consensus standards and is in noHardened Super Corrosion Resistant 316Stainless Steel Threaded Rods Grade B8M These hardened 316 stainless steel threaded rods are 40 stronger than standard Grade B8M threaded rods They meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks valves and flanges threaded rod sizes custom threaded rod 1 threaded rod grade 8 all thread threaded rod sizes chart threaded rod sizes in mm threaded rod sizes south africa threaded rod specifications metric threaded rod sizes threaded rod prices Industrial Threaded Rods Construction Threaded Rods GI Full Threaded Rod Fully Thread Rod BSW Threaded Torque has been converted into ft lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series UNC Grade 2 calculations only cover fasteners 1 4 quot 3 4 quot in diameter up to 6 quot long For longer fasteners the torque is reduced significantly Clamp loads are based on 75 of the minimum proof loads for each grade

22 8 2019 nbsp 0183 32 Grade A Headed bolts threaded rods and bent bolts intended for general applications Grade B Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges Grade C Nonheaded anchor bolts either bent or straight intended for structural anchorage purposes The end of the grade C anchor boltCarbon Steel Threaded Rod 60 000 PSI Tensile Strength The ASTM A307 specification covers carbon steel bolts and studs ranging from 1 4 through 4 diameter There are three grades A B and C which denote tensile strength configuration and application Refer to the Mechanical Properties Chart for the subtle strength differences within A193 A320 F593 A572 A36 All thread rod commonly referred to as fully threaded rod redi rod continuously threaded rod TFL rod and abbreviated ATR is used for general purpose fastening for anything from an anchor bolt to a through 25 10 2018 nbsp 0183 32 Low carbon steel is the most common material throughout the threaded rod industry due to its versatility There are different grades of low carbon steel to meet the minimum tensile and yield strength requirements of ASTM A307 including 1008 1018 amp 1022 fully threaded unc astm studs approximate weight in kgs per no length d i a m e t e r 1 2 quot 5 8 quot

ASTM F1554 Grade 55 all thread rod is a designed strength low to medium carbon content grade It has a 55 ksi yield strength which is required by the F1554 specification for anchor bolt and fastener applications Dimensional specifications are governed by ASME B18 31 3 10 6 2019 nbsp 0183 32 There are three grades A B and C which denote tensile strength configu ration and application Refer to the Mechanical Properties Chart for the subtle strength differences within each grade SPECIFICATIONS ZINC PLATED Grade A Headed bolts threaded rods and bent bolts intended for general applications 10 11 2015 nbsp 0183 32 Grade Regardless of the endless variety of grades and specifications of All Thread for the Structural and Miscellaneous Steel Fabricator it can be narrowed down to Carbon A307 Low Carbon Steel F1554 A 36 Grade 55 F1554 GR 55 S 1 A449 B 7 F1554 A 105 Stainless 302 303 304 For threaded rod purposes these are often combined 316 316LProperty class Material Colour 4 8 Plain steel and zinc plated None 4 8 ISO metric hot dip galvanised Light blue 4 8 Oversized hot dip galvanised OrangeAll measurements are in mm Metric DIN 975 threaded rods are 1m long rods that are threaded along their entire length They resemble the threaded shaft of a screw or bolt but tend to be longer Unlike a screw or bolt they do not have a head Also known as all thread rod ATR fully threaded rod continuously threaded rod or redi rod

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