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Joined: Jan 2006
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1984 block. Two fastners removed and installed through the holes in the fiber camshaft gear. I have lost both. I BELIEVE they were 1/4 20 NC but I do not know the length or grade.
1.Is what I believe correct?
2.Do you know the length?
3.Do you know the grade?
Thanks in advance for the help. Ray

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yes they are 1/4 UNC 20 3/4-1in.in size Phillip screws (Grade?)


Larry/Twisted6
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i think he is talking about the strength of them... (i.e. grade 5, grade 8)

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Thanks Larry and tnsmith10. The 3/4 inch length was what I really needed since I had the rest of it right. Yes, it was to the strength of the fastener I referred when I asked about the grade. It's academic I suppose since when in doubt, the safe thing to do is buy grade 8 which is medium carbon alloy steel, quenched and tempered. It is identified by 6 radial lines on the head. Since this has a phillips head I don't know if it will be graded or not. Thanks again for the assistance. Ray

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I knew what you were asking I just didn't know the grade for sure and didn't really think they make a grade 8 Phillips screw. thats why I added the ? mark. but your Welcome.


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I like to use button head allens for that. Doug


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