Astm A325 Bolts

This specification covers the chemical physical and mechanical requirements for structural bolts manufactured from steel and alloy steel in two strength grades two styles and two types.

Astm a325 bolts.

Joints using astm a325 or a490 bolts continues the tradition of earlier editions. Asme b18 2 6 covers dimensional standards for a325 heavy hex structural bolts rcsc. Length is measured from under the head. Section 6 2 1 was modified to permit the use of a490 type bolts with round.

This info and more on our specialized a325 microsite. Material meets astm f3125 specifications for quality. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts. If you are working with a325 structural bolts on a regular basis we strongly recommend purchasing a copy of the astm a325 specification from astm international.

Nuts and washers used in a structural joint with heavy hex structural bolts must also meet appropriate standards. The equivalent metric standard is astm a325m which is titled standard specification for. Sections 5 1 5 2 and 5 3 were editorially revised to clarify strength requirements of slip critical connections. The research council on structural connections is a non profit volunteer organization whose research projects serve to provide safety.

The major changes are. Astm a325 is an astm international standard for heavy hex structural bolts titled standard specification for structural bolts steel heat treated 120 105 ksi minimum tensile strength it defines mechanical properties for bolts that range from 1 2 to 1 1 2 inches 13 to 38 mm in diameter. The research council on structural connections is a non profit volunteer organization whose research projects serve to provide safety. A325 a325m a490 a490m.

Dimensions meet asme b18 2. Astm a325 structural bolts steel heat treated 120 105 ksi minimum tensile strength astm a490 structrual bolts alloy steel heat treated 150 ksi minimum tensile strength. The most common heavy hex head screw these steel screws meet astm a325 regulations for structural joints such as mating i beams and scaffolding. If you are working with a325 structural bolts on a regular basis we strongly recommend purchasing a copy of the astm a325 specification from astm international.

Partially threaded screws come with precise threaded and unthreaded portions allowing you to place only the.