Weldless Eyenuts & Lifting Eyenuts Standards

[dugal]

Hi Folks,
Have a small problem at work. The mechanics use weldless eyenuts normally used for pipe hangers as rigging eyenuts as well. I told them that they are more than likely made to different standards and their uses should not be mixed up. They only stock weldless eyenuts in their stores right now.
I have seen the eyenuts in a Crosby rigging catalog, but they do not quote a standard. I have also seen eyenuts in a pipe hanger supply catalog, again not quoting any standards.
The main physical difference that I know is that the bottom of a rigging eyenut has a larger land machined on the bottom of it.
Anyone know where the codes or standards are for these ?
Regards
Doug

 

[dbaird]

Specification for eyebolts for lifting purposes
Document Number: BS 4278:1984
British Standard
30-Apr-1984
ISBN: 0 580 13801 1

Standard Specification for Carbon Steel Lifting Eyes
Document Number: ASTM A489-03
ASTM International
01-Oct-2003

Eyebolts for general lifting purposes
Document Number: ISO 3266
International Organization for Standardization
01-Nov-1984



David Baird
mrbaird@hotmail.com

Sr Controls Engineer

EET degree.

Journeyman Electrician.

 

[MJCronin]

dugal,

Weldless eyenuts are made to MSS and Federal Codes and Standards...

I believe the ones you refer to are made to MSS-SP-69...

The components have a break strength of a couple of times the rated load (see MSS-SP69 for more info)

See page 130 of this link:

http://www.carpenterandpaterson.com/Catalogs/CPCat61.PDF

MJC

"People ask my why I do this, and I tell them that I have the heart of a small boy ... and I keep it in a jar on my desk." Stephen King