ASME B18.10 Round Bolt

This Standard covers the complete general and dimensional data for inch series oval neck and elliptic neck track bolts and square nuts intended for use with these bolts, and recognized as an American National Standard. Sizes in use, but not recommended for new design, are included in the appendices of this Standard.

The key types of bolts covered include:

Leader-Fastener® ASME B18.10 Round Bolt are frequently used in rail, heavy equipment, and agricultural applications. The bolts have a low profile head that does not interfere with many applications where a dramatic protrusion from a hex head or other style would. There are a variety of styles that include underhead features to hold the bolt in place while a nut is being tightened.

Step bolts are of similar design to a round head, square-necked bolt but with a much larger head size.

Elevator bolts are of similar design to the round head bolts but with a comparatively flat head frequently used in agricultural applications such as grain and other such elevators

ASME B18.5-2012 requires the use of additional standards–published by ASTM, ASME, IFI, and SAE -- in reference to thread dimensions, materials, mechanical properties, and finishes.

Leader-Fastener® ASME B 18.10 - 2006 Oval Neck Track Bolts [Table 1] (A449, A354)