How much weight can a 1 bolt hold?

How strong is a 1 inch bolt?

Proof Load

Nom Bolt Size (in) Grade
2 8
1 1/4 32000 116300
1 3/8 38100 138600
1 1/2 46400 168600

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.

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 strong is a bolt?

While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI. Grade 9 bolts are ideal for heavy-duty applications and are also often used in heavy machinery such as bulldozers.

How much torque does a 1/2 inch bolt have?

US Recommended Bolt Torque

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Size Recommended Torque
Grade 2 18-8 S/S
1/2″ 37 45
9/16″ 53 63
5/8″ 73 104

How much weight can a Grade 8 1/2 inch bolt hold?

The tensile strength of a grade 8 bolt is 150,000 pounds per square inch. Tensile strength is the maximum load in tension (stretching) that a part can carry without breaking.

Is a bolt stronger in shear or tension?

Bolted joints and also bolts are mainly designed to transfer loads from one part to another or for fixing them. they also designed for tolerating shear loads. therefore, it is obvious to be stronger in tension as its ductile behavior.

How is bolt torque required?


The general equation for bolt load based on applied torque is T = KFiDb where K = torque coefficient. K is a function of the coefficients of friction and collar friction in the joint, and these are based on variables such as surface finish, coatings, and so on.

How do you measure the strength of a bolt?

Take the minimum tensile strength in psi of the ASTM grade, multiplied by the stress area of the diameter. This formula will give you the ultimate tensile strength of that size and grade of bolt.

How much shear can a bolt take?

The shear strength of a bolt is a measurement of the minimum amount of force needed to break the bolt into two pieces. The shear strength of a metal bolt is approximately 0.6 times its tensile strength. A bolt commonly shears where its head meets the threads.

What is the strongest type of bolt?

Commercial-grade 8 bolts are the strongest option available. They’re made from medium carbon alloy steel and have markings that include six raised dashes. The psi of the bolt is 150,000, meaning that it can withstand great deals of pressure because of the way it was quenched and tempered.

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What bolt material is strongest?

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 does 8.8 on a bolt mean?

A property class (PC) is the metric equivalent of a grade in inch series terminology. … So, in English, a PC 8.8 bolt is a bolt with a nominal tensile strength of 800 MPa and a nominal yield strength that is 80% of the bolt’s nominal tensile strength, or 640 MPa.