Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) - Diameters ¼ in and over has-hardcopy glazing resistant to manual attack

glazing resistant to manual attack (see BS 5544) and aspects of construction for complete installations

-  Incorporate sector risk management processes

1 200 MPa ≤ Rm ≤ 1400 MPa

The mass per hectolitre is of commercial importance for grain cereals

Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) - Diameters ¼ in and over has-hardcopy glazing resistant to manual attack1 Scope 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 in to 1 in UNC inclusive and from in to1in UNF inclusive; 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. Figure 1 Basic form