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Questions And Answers On Askew Head Bolts

What Is The Load Capacity Of An Askew Head Bolt?

Askew head bolt load capacity varies based on factors that include the bolt’s material, length, and diameter.

Bolts with a diameter of 3/4 inch and a length ranging between 2 to 4 inches that are made from carbon steel will provide 60,000 psi tensile strength or more.

Bolts that are comparably sized and made from stainless steel will provide 70,000 psi tensile strength or more. Bolts in this range will provide a workload sheer of approximately 3000 pounds.

What Are Askew Head Bolts Used For?

Askew head bolts are used in construction applications where an angled-head contact is needed to maintain a connection.

They have a sloped inside surface that accommodates hardware like shelf-angle inserts and wedge-shaped tracks.

Electrical towers are some of the most common settings of these bolts.

What Are Askew Head Bolts Made From?

Askew head bolts are usually manufactured in either carbon steel or stainless steel. Both materials will ensure strength in most construction applications.

Enhanced corrosion resistance can be gained with stainless steel askew head bolts or with additional finishes that include hot-dipped galvanization. Carbon steel head bolts deliver reliable strength in conditions where corrosion is not a critical factor.

What Are Applications Of Askew Head Bolts?

Standard applications of askew head bolts include electrical towers and other structures where sloping or wedge-shaped elements must be fastened.

They are primarily used to install brackets, shelf-angle inserts, and wedge-shaped tracks into the concrete.

What Are A307 Askew Head Bolts?

A307 askew head bolts are wedge-shaped bolts that satisfy ASTM A307 standards. These standards pertain to carbon steel bolts measuring between 1/4 inch and 4 inches in length.

They have a minimum tensile strength of 60,000 psi and meet with all chemical and mechanical requirements defined in the A307 spec.

What Are 5/8” Askew Head Bolts?

5/8-inch askew head bolts are 5/8-inch diameter bolts. They were once used as a standard in most construction projects, which has since been replaced by 3/4-inch askew head bolts.  Many bolt suppliers and manufacturers still provide 5/8-inch askew head bolts.

How Long Are Askew Head Bolts?

Askew head bolts lengths range from 1 1/2 inch to 6 inches, with 6-inch askew head bolts often being categorized as extra long. Measurement increments are half-inch based up to 4 inches.

United States manufacturers and suppliers of these fasteners use inch-based varieties although metric-based are sometimes available. When choosing the length of these components, the depth of the concrete should be a foremost consideration.

How Are Askew Head Bolts Measured?

When selecting askew head bolts, the diameter and length are the main measurements for which to account.  Standard lengths range from 1 1/2 inches to 6 inches.

This measurement refers to the length of the bolt’s threaded end, up to the underside of the bolt’s head. The diameter of the bolt is standardized at 3/4 inch, although 5/8 inch was once the standard diameter.

How Are Askew Head Bolts Installed?

Askew head bolts are paired with components known as wedge inserts, which are meant to be installed into concrete or similar material. The head of the bolt is aligned with the sloped interior of the insert.

It’s very important that these two elements are compatibly positioned. The bolt’s head should have full bearing on the insert.

Are Askew Head Bolts The Same As Wedge Inserts?

Askew head bolts and wedge inserts are two different components. They are fitted together to facilitate the attachment of various structural elements into the concrete.

Their pairing will maintain long term stability and will still allow for horizontal adjustment. Wedge inserts are placed in concrete and the bolt is placed into the cavity of the insert’s interior.