BS Metric high strength large hexagon head bolts 英标BS BS BS Metric high. Weight Calculator Tolerance. BS Specification For High Strength Friction Grip Bolts And Associated Nuts And Washers For Structural Engineering – General Grade. BS High strength friction grip bolts and associated nuts and washers for structural engineering. Metric series. General grade (AMD ) ( AMD.
|Published (Last):||25 February 2004|
|PDF File Size:||18.87 Mb|
|ePub File Size:||14.59 Mb|
|Price:||Free* [*Free Regsitration Required]|
Hex bolt for pipe flange connection. Recommendations giving guidance in the use of this form of fastener are given in BS. The maximum content of sulphur and phosphorus shall not exceed 0. BSMethod for Brinell hardness test. The Rockwell hardness test shall be performed in accordance with the requirements of BS For bolts the nominal diameter and length of bolt in millimetres shall also be given, e.
The dimensions of Square taper ns shall be in accordance with Table 11 Fig. High-strength hexagon bolts with large widths across flats for structural bolting Suppliers 2. NOTE 5 Hardness values are given for guidance only. bss
The manufacturer shall afford the inspector all reasonable facilities, without charge, to satisfy him that the material is being furnished in accordance with the requirements of this standard. Sec Appendix B for mcthod bbs carryins out: Although it is bbs that some of those sections of industry already using ISO inch Unified screw threads may find it necessary, for various reasons, to continue with their use for some time, Whitworth and BA threads should be superseded by ISO metric threads in preference to an intermediate change to ISO inch threads.
Markings may be either embossed or indented at the option of the manufacturer, who may also use additional marking for his own purposes. Part 1BS The BS Yearbook may be consulted in many public libraries and sirnilar institutions. The form of thread, and diameters and associated pitches 44395-1 general grade metric high strength friction grip bolts shall be in accordance with BS ES’ Method for Vickers hardness test ‘, Part 1.
The ISO inch threads are the same as the existing Unified threads. The Amber document status indicator indicates that 3495-1 caution is needed when using this document – it is either: Before embarking on any project it must be satisfied that there is a strong body of opinion infavour of proceeding and thatthere is a recognized need to bc rnet.
The bearing surface of the nut shall be square to the axis of the thread of the nut within the tolerances given in Column 11, Table 8. The bearing surface of the nut shall be square to the axis of the thread of the nut within the tolerances given in Column 11, Table 8. Full details of tests, inspection procedure and provisions for marking are also included.
The dimensions of plain washers shall be in accordance with Table 10 Figure 5. Sb was originally intended to specify ISO strength Grade 8.
BS Metric high strength large hexagon head bolts
Hexagon Head Bolts for Steel Structures. It was originally intended to specify ISO strengthGrade 8. The tolerances on bolt thread lengths shall be plus two pitches for all diameters. The length of thread run out shall not exceed 2.
Only to be used for the lighter type usage of a larger size bolt than M System HR – Hexagon bolt 439-51 nut assemblies. The proof load is applied axially to the bolt in a normal tensile testing machine see Figure 8. It is the constant aim of BSI to improve the quality of our products and services. Methods for tensile testing of metals.
Size px x x x x The mandrel vs have a hardness of not less than Rockwell C Full details of tests, inspection procedure and provisions for marking are also included. Hexagon bolts with large widths across flats for steel structures.
The shank diameter shall be capable of acceptance by a ring gauge having an internal diameter equal to the maximum shank diameter as specified in Column 2, Table 5 4395-11 subject to a tolerance of plus 0.
Proof load t a t for nut C. This Standard makes reference to the following British Standards: The bearing face shall be machined or have a surface equal to that produced by machining. The test is considered satisfactory if the measurement, after the proof load has been applied for not less than 10 seconds, shows 4395–1 extension of not more than For nuts it is only necessary to specify the nominal diameter and standard number, e.