How do you calculate bolt tensile strength?
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.
What is an AN4 bolt?
AN4 bolts have a 1/4-28 UNF thread. The thread length is designed specifically to fit a full-height nut plus one AN960-416 washer. Sold individually; nuts and washers sold separately. Grip Length refers to the length of the unthreaded portion of the shank.
What is the tensile strength of a steel bolt?
Bolt Grade Markings and Strength Chart
| Head Marking | Grade and Material | Mechanical Properties |
|---|---|---|
| Min. Tensile Strength (psi) | ||
| Class 10.9 Alloy steel, quenched and tempered | 1040 | |
| Class 12.9 Alloy steel, quenched and tempered | 1220 | |
| Usually Stamped A-2 or A-4 | A-2 & A-4 Stainless Steel alloy with chromium and nickel | 500 Min. 700 Typical |
What is the strongest bolt grade?
grade 8
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.
How much weight can an M12 bolt hold?
For example, a grade 12.9 bolt will not snap until every square millimetre of the bolt cross section is carrying a load of at least 120 kg. Similarly a grade 8.8 bolt will not snap until it is carrying a load of 80kg per square millimetre….
| Size | Pitch (std) | Pitch (fine) |
|---|---|---|
| M12 | 1.75 | 1.5 |
| M16 | 2.0 | 1.5 |
| M20 | 2.5 | 1.5 |
| M24 | 3.0 | 2.0 |
What size is AN4?
For example: a 3/8″ standard hose equals -6 AN….Russell Performance Technical Support.
| AN Size | Metal Tube O.D. | Thread Size |
|---|---|---|
| -3 AN | 3/16″ | 3/8″ – 24 SAE |
| -4 AN | 1/4″ | 7/16″ – 20 SAE |
| -5 AN | 5/16″ | 1/2″ – 20 SAE |
| -6 AN | 3/8″ | 9/16″ – 18 SAE |
How strong is a 4.8 Bolt?
Mechanical properties
| Grade, material & condition | Nominal thread diameter size range [mm] | Yield strength (min) [MPa] |
|---|---|---|
| Class 4.8 Low or medium carbon steel; fully or partially annealed | 1.6–16 | 340 |
| Class 5.8 Low or medium carbon steel; cold worked | 5–24 | 420 |
| Class 8.8 Medium carbon steel; quench and tempered | Under 16 (inc.) | 640 |
| 17–72 | 660 |
How strong is a 12.9 bolt?
The minimum ultimate tensile strength of the Grade 12.9 Metric Hex Head Bolts is about 1242 Mpa or 180,000 PSI, making them the highest grade of bolts produced.In fact, the Grade 12.9 Nuts is known for their high tensile strength.