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| BS 1127-1:1990* EN 22568:1989* ISO 2568:1988 | Screwing dies and dienuts. Specification for hand- and machine-operated circular screwing dies and hand-operated die stocks |
| BS 1127-2:1990* EN 24230:1989* ISO 4230:1987 | Screwing dies and dienuts. Specification for hand- and machine-operated circular screwing dies for taper pipe threads; R Series |
| BS 1127-3:1990* EN 24231:1989* ISO 4231:1987 | Screwing dies and dienuts. Specification for hand- and machine-operated circular screwing dies for parallel pipe threads; G series |
| BS 1127-4:1990* EN 25968:1989* ISO 5968:1981 | Screwing dies and dienuts. Terminology for circular screwing dies |
| BS 1127-5:1990* ISO 7226:1985 | Screwing dies and dienuts. Specification for dimensions of hexagon dienuts |
| BS 1813:1974 | Specification for dimensions of conduit dies, diestocks and guides |
| BS 3409-1:1961 | Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads). Diameters 1/4 in and over |
| BS 3409-2:1966 | Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads). Diameters below 1/4 in |
| BS 949-1:1992 | Screwing taps. Specification of general dimensions |
| BS 949-2:1992 | Screwing taps. Specification for unified ground thread taps. Manufacturing tolerances |
| BS 949-3:1993 | Screwing taps. Specification for pipe thread taps |
| BS 949-4:1990* EN 22857:1989* ISO 2857:1973 | Screwing taps. Specification for metric ground thread taps: manufacturing tolerances |
| BS 949-5:1990* EN 25967:1989* ISO 5967:1981 | Screwing taps. Nomenclature and terminology |
| BS EN 50144-2-9:1996 | Safety of hand-held electric motor operated tools. Particular requirements for tappers |
| BS ISO 8051:1999 | Long shank taps with nominal diameters from M3 to M10. Full-diameter shank taps with recess |
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