Miner89r...
The NAS 6-lobe recess fastener specs [obviously] do not include over-sizes [X][Y] like many other specs.
However, other than the recess, this is a typical FTH Bolt with long threads, in either CRES or Titanium alloy [95-KSI-Shear, 160-KSI tensile], W/WO a patch locking element.
Possible OS Replacements... my order of preference... may/may-not be readily available [special order]
NOTE.
There are similar-to bolts with corporate part numbers... but I'm sticking with NAS equivalents
A286 CRES replacements
NAS7203-7216... Nom, 1OS [X] and 2OS [Y] [cruciform recess drive]
NAS1790C... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
NAS1580C... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
HT4026C... Nom, 1OS [X] and 2OS [Y] [Dovetail recess drive]
Titanium replacements
NAS7303-7316... Nom, 1OS [X] and 2OS [Y] [cruciform recess drive]
NAS1790V... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
NAS1580V... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
HT4026V... Nom, 1OS [X] and 2OS [Y] [Dovetail recess drive]
Low alloy steel replacements [if applicable]...
NAS7103-7116... Nom, 1OS [X] and 2OS [Y] [cruciform recess drive]
NAS1790... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
NAS1580A... Nom, 1OS [X] and 2OS [Y] [Dovetail or off-set-cruciform recess drive]
HT4026... Nom, 1OS [X] and 2OS [Y] [Dovetail recess drive]
NOTE.
IF FTH, short thread, Bolts are permissible then may consider...
NAS7400-7416 [LA Steel]
NAS7500-7516 [A286]
NAS7600-7616 [Titanium]
Regards, Wil Taylor
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o We believe to be true what we prefer to be true. [Unknown]
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