Miscellaneous general nut standards
This part of ISO 4759 specifies a selection of tolerances for bolts, screws, studs and nuts with ISO metric threads and with product grades A, B and C and for tapping screws with product grade A. The tolerances, except tolerances for threads, are selected from the system of limits and fits specified in ISO 286-1 and ISO 286-2. The tolerances for metric threads are taken from the series of tolerance classes specified in ISO 965-3. The tolerances for tapping screw threads are covered in ISO 1478. The tolerances of form and position are specified and indicated in accordance with ISO 1101, ISO 8015 and ISO 2692. The tolerances specified in this part of ISO 4759 apply to fasteners prior to coating unless otherwise specified. See also ISO 4042. Deviations from the tolerances specified in this part of ISO 4759 are only permitted in product standards where there are valid technical reasons. In cases where there is a difference between the tolerance requirements in this part of ISO 4759 and the product standard, the product standard takes precedence. It is recommended that these tolerances also be used for non-standard fasteners. Dimensions and tolerances given in this part of ISO 4759 are in millimetres.
Establishes a list of equivalent terms used in the field of aerospace. Relates to bolts and nuts. Replaces the first edition.
This SAE Part Standard covers selected machine screw nuts manufactured in accordance with American Society for Mechanical Engineers (ASME) dimensional standards. This document covers material most often used in ship systems and equipment but its use may be applied wherever fasteners of the covered materials are used. This document permits the fasteners to be identified and ordered by a part or identifying number (PIN) as defined in this document. The purpose of this document is to assist the designer and other personnel in providing requirements and PINS for the most commonly used machine screw nuts. A PIN is normally required for all military applications and provides a useful means of communicating fastener requirements to suppliers and manufacturers in a very succinct manner.
This information report presents recommendations on part number marking which provides for the maximum identification on bolts and nuts while ensuring adequate readability.
This standard covers complete general and dimensional data for nine various types and styles of wing nuts. Thumb screws, and wing screws recognized as American National Standard are included in ASME B18.6.8. The inclusion of dimensional data in this standard is not intended to imply that all the products described are stock production sizes. Purchasers should consult with suppliers concerning availability of products.