New Style Turret Hatch bolt question

[mrfarb]

Now that my a/c is working, I’m going to address the water leaking issues with the turret and slant back by sealing stuff up. One big issue is the bolts I have for the hatch hinge (not shown) and strut support when turret is open are the correct style and size, but the finish is black oxide - they rusted in about 10 minutes of Texas humidity and rain. I can’t order them from Mac as the part number doesn’t come up as available - is there a way to get military original bolts for these with the correct weatherproof finish like grade 8 bolts have? Pic shows the strut support bolts #21 in the parts diagram with part number and size.

 

[Retiredwarhorses]

Just buy the bolts in stainless steel, I try and use SS socket cap bolts on all the turrets I install and sell.
also, apply a sealant on the bolt before you insert the bolts, that’s how the factory does it.

 

[mrfarb]

Thank you! I will do that. I was concerned about using SS with the aluminum but it’s the most sensible idea.

 

[mrfarb]

I wanted to update this thread with some helpful information. After having little luck finding the correct size stainless bolts, I called Mac motors. The salesman couldn’t help me, but told me to put the part number from the parts manual into McMaster-Carr bolt supplier website which is one of the army suppliers.

92210A638 - 3/8-18 4” flat head screw
92210A644 -3/8-24 1 1/2 inch flat head screw

Both bolts are available in small quantities (singles for 4” and 5 pack for 1 1/2 inch). These are stainless bolts as suggested. It takes 5 of the 4” and 4 of the 1.5 inch fyi.

props to retiredwarhorses and Mac motors.