ASME B18.5-2012 pdf free

ASME B18.5-2012 pdf free.Round Head Bolts (Inch Series).
ASME B18.5 covers the complete general and dimensional data for the various types of inch series bolts generally classified as round head bolts and recognized as American National Standard.
1.1.2 The inclusion of dimensional data in this Standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult with manufacturers concerning availability of products.
1.2 Bolt Types
The bolt types covered by this Standard are enumerated and described in paras. 1.2.1 through 1.2.10.
1.2.1 Round Head Bolt (Formerly Designated Button Head Bolt). Th round head bolt shall have a circular head with a low rounded top surface and a flat bearing surface. Dimensions are given in Table 1.
1.2.2 Round Head Square Neck Bolt (Formerly Designated Round Head Carriage Bolt). The round head square neck bolt shall have a circular head with a low rounded top surface and a flat bearing surface, and an integrally formed square neck under the head. Dimensions are given in Table 2.
1.2.3 Round Head Short Square Neck Bolt. The round head short square neck bolt shall have a circular head with a low rounded top surface and a flat bearing surface, and an integrally formed short length square neck under the head. Dimensions are given in Table 3.
1.2.4 Round Head Ribbed Neck Bolt (Formerly Designated Ribbed Neck Carriage Bolt). The round head ribbed neck bolt shall have a circular head with a low rounded top surface and a flat bearing surface, and a ribbed or splined neck formed on the shank below the head Dimensions are given in Table 4.
1.2.5 Round Head Fin Neck Bolt (Formerly Designated Fin Neck Carriage Bolt). The round head fin neck bolt shall have a circular head with a low rounded top surface and a flat bearing surface, and two diametrically opposite integrally formed fins at the junction of head with shank. Dimensions are given in Table 5.
1.2.6 Step Bolt. The step bolt shall have a large circular head with a low rounded top surface and a flat bearing surface, and an integrally formed square neck under the head. Dimensions are given in Table 6.
1.2.7 Countersunk and Slotted Countersunk Bolts.
The countersunk bolt shall have a circular head with a flat top surface and a conical bearing surface having a head angle of approximately 80 deg. Countersunk bolts are available with and without a slot in the head, as specified by the purchaser. Dimensions are given in Table 7.
1.2.8 114-deg Countersunk Square Neck Bolt (Formerly Designated Countersunk Carriage Bolt). The I 14-deg countersunk square neck bolt shall have a circular head with a flat top surface and a conical bearing surface having a head angle of approximately 114 deg, and an integrally formed square neck under the head Dimensions are given in Table 8.
1.2.9 Flat Countersunk Head Elevator Bolt. The flat countersunk head elevator bolt shall have a large circular head with a flat top surface and a shallow conical bearing surface, and an integrally formed square neck under the head, Dimensions are given in Table 9.
1.2.10 T-Head Bolt. The T-head bolt shall have a rectangular head with a rounded top surface and a flat bearing surface. Dimensions are given in Table 10.
1.3 Terminology
For definitions of terms relating to fasteners or component features thereof used in this Standard, refer to
ASME B18.12.
1.4 Dimensions
All dimensions iii this Standard are given in inches, unless otherwise stated.
1.5 Designation
Round head bolts are designated by the following data, preferably in the sequence shown:
(a) product name and designation of the standard
(b) nominal diameter, threads per inch, and nominal length
(c) material grade or identification, and protective coating, if required.ASME B18.5 pdf download.