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BS 3409-2:1966

BS 3409-2:1966

$86.31

Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) – Diameters below ¼ in

Published By Publication Date Number of Pages
BSI 1966 14
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This British Standard comprises three sections:

Section 1, which specifies limits of size for tapped holes to accommodate wire thread inserts to provide thread sizes from No. 2 to No. 12 UNC and UNF;

Section 2, which recommends screwing taps intended to produce holes to the limits of size specified in Section 1;

Section 3, which gives a recommended gauging system for checking the tapped holes.

Limits of size for tapped holes to accommodate wire thread inserts to provide thread sizes from No. 2 to No. 12 UNC inclusive and from No. 2 to No. 12 UNF inclusive. Recommendations for general dimensions and limits of size on the threaded portion of screwing taps intended to produce holes to the limits specified; details of a recommended gauging system for checking them.

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BS 3409-2:1966
$86.31