SUMMER 2015

68 THE DISTRIBUTOR’S

68 THE DISTRIBUTOR’S LINK 1. Standards Organizations Activities [a] Standards Published Recently No standards published during March or April 2015. TECHNICAL ARTICLE Joe Greenslade Director of Engineering Technology INDUSTRIAL FASTENERS INSTITUTE 636 Oak Tree Blvd., Independence, OH 44131 TEL 216-241-1482 FAX 216-241-5901 EMAIL jgreenslade@indfast.org WEB www.indfast.org MAY 2015 FASTENER INDUSTRY TECHNOLOGY UPDATE FROM THE IFI [b] Standards that have passed committee balloting and are in the publication process: ASME B18.15 Forged Lifting Eyes (Inch) ASME B18.24 Fastener part identification numbering system. ASTM F606/F606M Fastener Testing Standard (inch/metric combined) [c] Standards in the revision process ASME B18.2.1 Bolts and Cap Screws (inch series). Sept 2014, work has begun to add a missing Lg/Lb table for hex flange head screws and correct a few other minor issues. Completion is expected in 2015. ASME B18.2.2 Non-locking Nuts (inch series). Sept 2014, work has begun to correct an error in the hex sizes of “Small Pattern Hex Machine Screw Nuts”. First ballot completed in March 2015. Completion is expected before the end of 2015. ASME B18.2.6 Structural Fasteners (inch series). Sept 2014, work has begun to revise this standard to incorporate a critical table note currently covered by a Supplement and to make minor revisions to the DTI portion of the standard. Completion is expected in 2015. ASME B18.2.6M Bolt for Structural Construction and High Pressure Applications (metric series). Sept 2014, work will begin to increase the size range from M36 through M100 and to make some minor revisions to the DTI portion of the standard. Completion is expected in 2015. ASME B18.6.1 Wood Screws. Sept 2014, work has just recently begun on this and the revision is not expected for completion until late 2015. ASME B18.13 SEMS (inch series). This standard was last revised in 1996 and will now undergo a complete revision. The revised scope will be balloted in April 2015. There were negatives that will be resolved at the May 2015 meeting. Completion is expected in 2016. ASME B18.16.6 Inch Locking Nuts. The B18.16 subcommittee has started work on a revision to lower the proof load values of thin insert lock nut to 45% of the regular height nuts and to correct the errors in the NTM series of nut heights. The revision process should be complete before the end of 2015. ASTM A354 Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners. Some weaknesses in the standard were discovered as a result of the threaded rod failures on the Bay Bridge. The committee is proposing that a higher grade of alloy steel be required for sizes over 1-1/2 inches to assure better hardenability plus several Supplemental requirements such as hardness uniformity test, Charpy testing, and mag particle testing. Sub-committee balloting is complete. Negatives will be discussed at the F16 May meeting. F16 main committee balloting will take place before mid-2015. ISO 4042 Electroplating finishes for fasteners was discussed at the ISO TC 2 meetings in Paris during the third week of October. The majority of the work was on Appendix B which addressed hydrogen failures and how to manage process variables to decrease its potential effects of hydrogen. Work is also under way on Appendix D dealing with the effects of plating on threads and how pre-plate threads may need to be adjusted to provide adequate room for plating and coating buildup. Work progressed on this during the October 2014 meeting in Milan. Progress was made at the March 2015 ad hoc meeting in Paris. The next ad hoc working group meeting will be in June 2015 in Paris. CONTINUED ON PAGE 156

THE DISTRIBUTOR’S LINK 69