# Frequent question: How much weight can a 1/2 grade 5 bolt hold?

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## How much weight can a 1/2 bolt hold?

A 1/2 inch lag bolt can hold 21,285 pounds.

## What is the strength of a grade 5 bolt?

Bolt Grade Markings and Strength Chart

Min. Tensile Strength (psi)
No Markings Grade 2 Low or medium carbon steel 60,000
3 Radial Lines Grade 5 Medium carbon steel, quenched and tempered 120,000
105,000

## What is the shear strength of a Grade 5 bolt?

For example, an SAE grade 5 hex cap screw has a specified minimum tensile strength of 120,000 psi. Therefore, for design purposes, its shear strength could be reasonably assumed to be 70,000 psi.”

## How do you calculate bolt load capacity?

The tensile load a fastener can withstand is determined by the formula P = St x As. To find the tensile strength of a particular bolt, you will need to refer to Mechanical Properties of Externally Threaded Fasteners chart in the Fastenal Technical Reference Guide.

## How much weight can a 1/2 grade 5 bolt hold?

2 5
3/8 4250 6600
7/16 5850 9050
1/2 7800 12100
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## How strong is a Grade 2 bolt?

Grade 2 hex head bolts are made from low to medium strength carbon steel and offer a tensile strength of 60,000 to 74,000 psi, depending on the diameter.

## Is grade 5 stronger than stainless steel?

The Nut and Bolt Solution Series

A common question is whether stainless steel is stronger that a grade 5 or grade 8 bolt. … Bolt strength is rated in PSI (pounds per square inch). A stainless steel bolt has the same PSI rating as a grade 5 bolt (125,000 PSI). A grade 8 bolt has a stronger rating with a PSI of 150,000.

## Is grade 5 a good bolt?

Grade 5 is specified under the Society of Automotive Engineers and is meant to be used for those applications requiring medium strength. Equivalent to the metric class 8.8 bolts, it is important to line up the right hardware if required to move from U.S. customary units (USC) to the metric system.

## Is a grade 5 bolt high tensile?

Grade 5 steel (USA equivalent to 8.8 high tensile).

Grade 8 bolts have been hardened more than grade 5 bolts. Thus they are stronger and are used in demanding applications such as automotive suspensions.

## What is the hardest bolt to break?

The strongest commercial-quality bolt is grade 8, marked by six raised dashes; its medium-carbon alloy steel has been quenched and tempered to achieve a tensile strength of 150,000 psi.

## What are Grade 5 bolts used for?

These bolts are generally used for non-critical joints and applications. A grade 5 bolt is distinguished by 3 radial lines and promises tensile strengths between 105,000 and 120,000 psi. They are most commonly found in automotive applications.

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## How much force can a bolt withstand?

Steel bolts are graded according to newtons per millimeter squared for bolt tensile strength as compared to yield strength. For example, a steel bolt with a rating of 5.5 will provide roughly 500 newtons/mm2 of bolt tensile strength and approximately 400 newtons/mm2 of yield strength.