In addition, typographical changes have been made throughout this Specification. As = stress area of bolt, in in² n = no. Pass 4: Check all bolts at 100% torque with a circular pattern. If a bolt is torqued rather than the nut then the torque value should be increased to compensate for the additional frictionbolt should only be torqued if they are fitted in clearance holes. Flange Bolt Torque Sequence and Torque TableA Complete . Flange Size Ring Gasket Number of Bolts Stud Bolt Tap End Stud Wrench Size Torque* Ft. Lbs. 1-13/16" 10M BX-151 8 3/4" x 5-1/2" 3/4 x 3-3/4" 1-1/4" 200 1-13/16" 10M 6BX TO 17SV BX-151 SBX-151 Where the proof load is not quoted in the specification this has been taken as 95% of the yield stress. bolting torque table 3 - use only with a193 b8, cl1 bolts at 540°c - 650°c on uninsulated flanges. F = tensile force , in Lbs C = TIGHTENING TORQUE, IN N*m C:\Documents and Settings\Alain\Mes documents\Couple de serrage.xls, 03.05.23 by A.S. Sy = yield strength, in KSI µ = Friction coefficient 0000004858 00000 n H��Wmo7����*8Q��;`��8@�p����VZ���r[��ߐ\r��c��E����<3���&�d�#ۯ�ٶ�]���g��f��fKJk��~Xm������f�_߭�� ۯ��;��徑�k�p�$��3P$ ��%ܠ~jIYύ�O. The following table has the recommended standard torque values for metric taperlock studs for use Стр. Lubricated refers to fasteners in the “As Received” condition, which is normally a light preservative oil coating on unplated fasteners and no oil coating on plated fasteners. The following suggested tightening torques provide an excellent starting point for determining torque requirements. 0000013534 00000 n Recommended Assembly Torques Class 10.9 ISO Metric Coarse Pitch Bolts & Screws Bolt Tension Corresponding to 65% of Proof Load Recommended Assembly Torque Diameter Pitch (mm) kN Nm M5 0.80 7.67 8 M6 1.00 10.9 13 M8 1.25 19.8 32 M10 1.50 31.3 63 M12 1.75 45.5 109 M14 2.00 62.1 174 M16 2.00 84.5 270 M18 2.50 103 371 Torque values for 1/4 and 5/16-in series are in inch-pounds. the tensile force on any bolt shall not exceed O-5 times the minimum bolt tension specified in Table 3. STUD BOLTS TORQUE CHART. There is no torque difference for fine or coarse threads. Home; Products; Metric Fasteners. bolting torque table 4 - use only with 6061-t6 aluminium flanges. 0000004439 00000 n You can also publish the lyrics of your favorite song or you can sing it in your own voice and publish it. ASTM: If you are working with A325 structural bolts on a regular basis, we strongly recommend purchasing a copy of the ASTM A325 specification from ASTM International. Unified Hexagon Bolts / Sets - UNC 7. )ǭpO.���I�"� lbs Nm inch. Flange Bolt Torque Sequence and Torque TableA Complete . U.S. Thread Chart, American Standard, UNC, UNF. endstream endobj 79 0 obj <>/Subtype/Form/Type/XObject>>stream Approximate Torque Nm Grade 4.6 8.8 10.9 12.9 Mervin Sutisna. Fastener Torque Specifications 8 SAE and Metric Fastener Torque Specifications Metric Plain and Zinc Plated Hex and Socket Head Cap Screws TORQUE CHART - METRIC PLAIN AND ZINC PLATED HEX HEAD AND SOCKET HEAD CAP SCREWS High Tensile Hexagon Bolts 9. 0000013992 00000 n Mlid Steel Countersunk Square Plough Bolts Mlid Steel Countersunk Nib Bolts 6. ASME: ASME B18.2.6 covers dimensional standards for A325 heavy hex structural bolts RCSC: The Research Council on Structural Connections is a non-profit, volunteer organization whose research projects serve to provide … 0000017063 00000 n The bolting standard will define whether the torque value is for a dry or lubricated stud/bolt thread. U.S. 2. Table of bolt torque. Surface variables to be taken into account for each specific application include thread roughness, lubrication, hardening, scale, paint, and plating. We call this force to fix axial tension. AN Bolt Torque For oil free cadmium plated steel nuts and bolts inch. Do not reuse stop nuts if Nominal diameter is a more of a label than a size. �@@:��-j�_:s8���w����_�GQv��fjh�d�+���Q��"����&Pfӥ�4LY+t"�W��b$�S��So�jqO��Xc)��(9�I7M�����AKe�����ZkB� zI r�)���(���Q�$$5�2'�}zN�+�jǰ�d�_�*�����T�E]��ZaaMf@�̊�Y���p�^���L���Y`����̑���Ž�������L�����%��Rc�]!�^�*� trailer <]>> startxref 0 %%EOF 30 0 obj<>stream Download Free PDF. 0000009998 00000 n Mild Steel Hexagon Head Setscrews 4. H330=R�,�= �w�X����[��h�aR�|IPQO� >7� 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 ��b��3W���GeKn�F��blA��6�cJGm��a��]y ������:n*2�0�%2��;Be�3�P�)���8=���ү��9��-%�[��t�=@!�cm��`̝H�L�J�%U�&��T`���&Za3�p1��v��&vT�T53� P*#�X�E��*�� Tightening Torque Clamp Load (lbs.) Torque Why do we tighten screws? T The purpose of tightening screws is to fix one object to another object. Class 1A and 1B is standard for only coarse and fine threads with sizes of 1/4 inch and larger. BOLT PRODUCTS s e m h s e m Nut F=Q+ 100 100 N=-F f N=-w s YAs e k l b Ds r Property Class 8.8 Fastener Handbook M 8.8 Bolt Products NEW EDITION cover layout 12/7/00 4:33 PM Page 1 Metric Bolting Diameter Tensile Stress Area mm² Suggested Bolt Load KN. 0000002287 00000 n lbs Nm The published torque values do not include the rotational drag of the elastic stop nuts (AN365). �����|��x�p���y�7U(��5�͛P*ǥ�+;�z�Om�3��tV�����غE�*]� ժg�D�F��g��ԔFU��, #�����r{v6�����,Vή�^] �����]|wɚ)�)�ք�63����+��v����S��v������)f��0��q����H� %���߿��O7�C(x ~/�$�F��4ʔ�Z�3��>�^k���o��+�ƄMz�m ���QԞ���R}�R�����z{�ï����˟����)�������. )����l���Y R�Dvp��A"�8�30���.��$�$0!�0 *�q Standard maintenance practice dictates that mechanics add this value to the specified torque. �H�9T�BawO��JǠ���€J%56I�4bQ��(��f�� Metric and Imperial Standard Bolt Torques standard-torques.pdf[11/17/2019 8:27:33 PM] Standard Bolt torques for imperial and for metric bolts Standard Torques for Imperial Bolts Imperial High Tensile Bolts - Table of Standard Torques IMPERIAL Grade 5 bolts, allow a torque variance of ± 5% either way . h�bbd```b``� "��H��h& @$���L����*e�l�,s������k0�lN��"]I��G ��R��-X%�40Y��*DZw�t1i����\��_�> 0000019081 00000 n TM 10-4330-237-13&P STANDARD TORQUE VALUES-METRIC SYSTEM In the absence of specific torque values, the following chart can be used as a guide to the maximum safe torque for a particular size/grade of fastener. Torque Table. Given here is the bolt torque chart for the ASTM A307 bolts. • Table 6.1, footnote d, was added to clarify use of non-hardened plate washer to be used in conjunction with an ASTM F436 hardened washer. 0000001005 00000 n 0000018741 00000 n x�b``�```^� �����Y800�"�J@1���a�DB {�����pI~ŤM�Iu=�m���lͧh���nXm�f�u {�/ endstream endobj 5 0 obj<>/Metadata 2 0 R/Pages 1 0 R/Type/Catalog>> endobj 6 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 7 0 obj<> endobj 8 0 obj<> endobj 9 0 obj[/Separation/Blue 10 0 R<>] endobj 10 0 obj[/ICCBased 14 0 R] endobj 11 0 obj<>stream 0000010386 00000 n The bolting standard will define whether the torque value is for a dry or lubricated stud/bolt thread. Bolts, Screws, Studs 60,000 Bolts, Screws, Studs ASTM A307 Grades A&B 60,000 STANDARD BOLT IDENTIFICATION MARKINGS Identification Grade Mark Specification Fastener Description Material Nominal Size Range (in.) 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