Description

BS 3409-1 – Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads). Diameters 3/16 in and over

Specifies limits of size for tapped holes to accommodate wire thread inserts to provide thread sizes from 3/16 in to 1½ in UNC inclusive and from 3/16 in to 1 in UNF inclusive. It includes recommendations for general dimensions and limits of size on the threaded portion of screwing taps intended to produce holes to the limits specified, together with details of a recommended gauging system for checking them.

Cross References:
BS 919:Part 1
BS 949
BS 1044
BS 1580

Product Details

Published:

08/16/1961

ISBN(s):

0580352528

Number of Pages:

20

File Size:

1 file , 470 KB

Product Code(s):

00067070, 00067070, 00067070

Note:

This product is unavailable in Ukraine, Russia, Belarus