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Sec. VIII Div. 2 Centrally Located Opening in a Flat Head

Sec. VIII Div. 2 Centrally Located Opening in a Flat Head

Sec. VIII Div. 2 Centrally Located Opening in a Flat Head

(OP)
First Post.

Looking at using paragraph 4.6.4 in Div. 2 for a centrally located opening in a flat head (UG-39 and App. 14 in Div.1). The equations seem manageable and I feel our application is best suited by this route. However, the opening in the head of our design does not meet the d>.5D requirement. Can I still use this paragraph despite the fact that the opening is not over half the diameter of the head? If not, can someone point me in the right direction? Everything I have seen deals with solving for large openings or exempting very small ones, I can't find where it explicitly states what to do for openings in the middle range.

Thanks

jtrees02

RE: Sec. VIII Div. 2 Centrally Located Opening in a Flat Head

Only 4.6.4.1 is applicable to 'large' openings, 4.6.4.3 does not have the same limitation. However you have also 4.5.12

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RE: Sec. VIII Div. 2 Centrally Located Opening in a Flat Head

(OP)
Thanks. Neither I nor my designer or manager read it that way. Thank you for the clarification.

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