What is the difference between Grade 5 and Grade 8?
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. Grade 8 bolts have 6 evenly spaced radial lines on the head. Grade G is roughly equivalent to Grade 8.
What is the shear strength of a grade 8 bolt?
Grade 8 bolts are designated as a 150 ksi.
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.”
Can you use a Grade 5 nut with a grade 8 bolt?
No, you should not use a mild steel tensile nut with a high tensile bolt. Match the bolt and nut grade or opt for a nut of a higher grade than the bolt.
Are Grade 8 bolts or Grade 5 shear easier?
Shear strength of alloy steel is approximately 60% of its ultimate tensile strength. Reference to Table 1 shows that the yield strength of a Grade 8 bolt is higher than the ultimate strength of a Grade 5 bolt. The Grade 5 bolt will therefore always fail first whether in tension or shear.
What grade bolt is best for shear strength?
Grade 9 structural bolts, also known as grade 9 hex cap screws, are one the strongest structural bolts that can be used today. 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.
Are Grade 8 bolts the 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.
Can you use a Grade 8 in place of Grade 5?
A grade 8 bolt is the highest grade SAE bolt. Grade 8 bolts have a minimum tensile strength of 150,000 PSI. As a comparison, the ASTM A325 bolt is roughly equivalent to the SAE grade 5. A grade 8 bolt would be one that meets ASTM A490 standards.
What grade bolt is best for shear pin?
Silver 5/16″ shear bolts are the most durable and are used on professional-grade snowblowers.
What are Grade 5 bolts used for?
Grade 5. Manufactured from medium carbon steel and hardened for greater strength and durability, 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 or those that require medium strength.
Can you shear bolt with grade 5 bolt?
Normally shear bolts are Grade 2 and there is no soft grade #5 as it is either a grade #5 or not.
How strong is a Grade 5 bolt?
between 105,000 and 120,000 psi
Manufactured from medium carbon steel and hardened for greater strength and durability, 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 or those that require medium strength.
What grade bolt is used for a shear bolt?
Grade 2
It’s a Grade 2 (soft) bolt. It’s supposed to shear before any damage to a driveline or gearbox.