ASME B18.31.5:2011 pdf download

ASME B18.31.5:2011 pdf download.Bent Bolts (Inch Series)
1 INTRODUCTORY NOTES
1.1 Scope 1.1.1 This Standard establishes general require- ments for parts classified as bent bolts. Dimensional requirements are provided in tables for U-bolts of dif- fering bends, eyebolts, hook bolts of differing bends, and J-bolts. General requirements are provided for offset round bend, J-bolts, square bend hook bolts, vee bend U-bolts, and slant U-bolts. 1.1.2 Two methods are identified for designating (ordering) bent bolts covered by this Standard. For con- figurations covered by dimensional tables, Nonmandatory Appendix A provides a Part Identifica- tion Number (PIN) system thatallows ordering the parts in several materials and finishes. For configurations without dimensional requirements or of sizes not cov- ered in the tables, a standard system for identifying the dimensions, material, and finish is provided. 1.1.3 The inclusion of dimensional data in this Standard reflects generally available configurations. It is notintended toimplythatall ofthe products described herein are stock production sizes, particularly in materi- als other than low carbon steel. Consumers should con- sult with manufacturers concerning lists of stock production sizes and materials. 1.2 Dimensions All dimensions in this Standard are in inches, unless otherwise specified. When plating or coating is speci- fied, the finished product dimensions apply before plat- ing or coating unless otherwise specified by the purchaser. 1.3 Options Options, where specified, shall be at the discretion of the manufacturer, unless otherwise agreed upon by the manufacturer and the purchaser. 1.4 Terminology The following terms used in this Standard are identi- fied in this Standard below or in para. 2.1. The definition of other terms used in this Standard may be found in ASME B18.12.1.4.2 J-hook bolt is also known as a hook bolt, round bend as defined in ASME B18.12. 1.4.3 Roof top vee bolt is also known as a U-bolt, vee bend as defined in ASME B18.12. 1.4.4 U-bolt, slant bend requires a bend from the high point of one leg to the high point of the second leg. The angle of bend and the height requirement for each leg are determined by the purchaser. The bolt has threads on both ends of its shanks.
2 GENERAL DATA
2.1 Bent Bolts The bent bolts covered by this Standard include those listed in paras. 2.1.1 through 2.1.5 and are presented in Figs. 1 through 4. Bent bolt configurations are pictured in this Standard either labeled as part of a table or as an individual figure. 2.1.1 U-Bolts. Two standard styles of bent U-bolts of varying leg lengths are covered. U-bolts, round bend (Table 1), are often used for holding pipe and thus are commonly defined by the nominal pipe size (reference ASME B36.10M) for which they are intended. U-bolts, square bends (Table 2),are predominantlyused forhang- ing duct work and thus are commonly defined by the dimensions of duct work for which they are intended. 2.1.2 Alternate Configurations of U-Bolts. In addi- tion to the U-bolt configurations listed in para. 2.1.1, there are two additional types of U-bolts. U-bolts, vee bend, also called roof top vee bolts, are shown in Fig. 3. U-bolts, slant bend, are of the configuration shown in Fig. 4. 2.1.3 Light-Duty Bent Eyebolts. These eyebolts can be found in two head styles: an eyebolt, closed anchor ring style (Table 3), and an eyebolt, open anchor ring style (Table 4). These bolts are not for lifting purposes. 2.1.4 Hook Bolts. Hook bolts can be found in many hooked or bent styles including right angle bend (also known as an L-hook), as shown in Table 5. An acute angle bend (most commonly a 63-deg bend) is shown in Table 6. A round bend (also known as a J-hook) is shown in Table 7, and a square bend is shown in Fig. 2. 2.1.5 J-Bolts. J-bolts have an offset round bend approximating a semicircle as shown in Fig. 1.