huangyhg

ansi weldless eyenuts & liftin
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i have seen the eyenuts in a crosby rigging catalog, but they do not quote a standard.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
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
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:

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