ASME B18.12:2001 pdf free download

ASME B18.12:2001 pdf free download.CORRESPONDENCE WITH THE B18 COMMITTEE.
These fasteners usually have a tensile strength in excess of 120,000 psi.
2.1.7 lockpins and collars: a headed and externally grooved mechanical device designed for insertion through holes in assembled parts. A cylindrical collar is swaged into the external groove as the lock pin is hydraulically tensioned. Collars are either smooth bored or may contain a fit-tab. An optional flange provides a built-in washer.
2.1.8 mechanical properties: identify the reaction of a fastener to applied loads. Rarely arc the mechanical properties of the fastener those of the raw material from which it was made. Properties such as tensile and yield strengths, hardness, and ductility will vary widely, depending upon choice of manufacturing methods and metallurgical treatments.
2.1.9 modified standard: a part that is standard with one or more of its features or characteristics slightly changed. Such a part is normally ordered to a customer’s print is used by that customer in a particular application, but the part is such that any interested manufacturer can produce it.
2.1 .1 0 nonstandard fastener or special fastener: a fastener that differs in size, length, Configuration, material, or finish from established and published standards.
2.1.11 physical properties: inherent in the raw material and remain unchanged, or with only slight alteration in the fastener following manufacture. Such properties are density. thermal conductivity, and magnetic susceptibility.
2.1 .12 Part Identifying Number (PIN): a 2 1-character code that identifies an ASME B 18 manufactured product by specific characteristic fields such as fastener family identification, B 18 standard identification, fastener style or type, thread series, nominal diameter, nominal length or dimensional/other characteristics, material and treatment, plating, coating, and passivation and special features relevant to the fastener product.
2.1 .13 precision frisiener: manufactured to close dimensional and geometric tolerances.
2.1.14 proof load: a tensile load that the fastener must support without evidence of permanent deformation. Proof load is an absolute value, not a maximum or minimum value. For most carbon or alloy steel fastener strength grades or property classes, proof loads are established at approximately 90 to 93%.
or against the rivet body and breaks at a point within or above the rivet head. Flush break means that the break plane of the mandrel occurs above the junction of rivet shank and head, thus the shear plane(s) of the joint will occur through rivet shank and mandrel.
3.3.3.2.7 multi-grip flush break pull, positive lock mandrel blind rivet: a pull mandrel type of blind rivet where during the setting operation the mandrel is pulled into the rivet body and breaks essentially flush with the top of the rivet head. Because the break plane of the mandrel occurs above the junction of rivet shank and head, the shear plane(s) of the joint will occur through rivet shank and mandrel. Multi-grip means the rivet has the design capability to join component parts having a broad range of thicknesses. Positive lock means that during rivet setting an intentional deformation occurs in the rivet mandrel and/or body that provides a mechanical resistance to mandrel removal from the body.
3.3.4 Pins
3.3.4.1 pill., a straight cylindrical or tapered fastener, with or without a head, designed to perform a semi-permanent attaching or locating function.