Is there a Grade 8 stainless bolt?
Is there a Grade 8 stainless bolt?
Grade 8 nuts are commonly mated on grade 8 bolts and used in heavy industries do their high tensile strength. These applications are popular within the heavy machinery, mining, tractors, trucking, and many other heavy industrial reasons.
Is stainless or Grade 8 stronger?
Stainless is very soft stell with a Nickel plate, hence the “stainless” qualites. Grade 8 stuff has a very high carbon content, making it very hard and much stronger.
Is Grade 8 bolt hardest?
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.
What bolt is stronger than Grade 8?
Grade 9 bolts are ideal for heavy-duty applications and are also often used in heavy machinery such as bulldozers. Not only are these bolts considerably stronger than they’re grade 8 counterparts, but they are also considerably more resistant to corrosive elements as they are made with yellow zinc chromate.
What grade of bolt is stronger?
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.
Is a 12.9 Bolt stronger than grade 8?
Special markings on screw heads and nuts identify the fastener’s grade. Replace a graded fastener with same or higher grade (don’t replace a Grade 8 fastener with a Grade 5 or 2)….Table 1.
| Grade/Class | Strength |
|---|---|
| Metric Class 12.9 | The highest metric class for strength, it exceeds Grade 8. |
What is the highest grade of bolt?
grade 8 bolt
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 are the strength of bolt grades?
Stainless commonly comes in grades 18.8 (304) or T316. Stainless steel bolts are rated for corrosion resistance. 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.
What are the grades of bolts?
A. The grade of a bolt indicates the tensile strength of the steel. The higher the number the harder it is. The most common grades are 2, 5 and 8. Grade 2 bolts are made out of mild steel and have no marks on the head, except maybe ‘A 307A’ . Grade 5 bolts are a medium hard bolt and have 3 lines on the head.
What is Grade 5 bolt strength?
They have a tensile strength of 60,000 PSI. Grade 5 bolts are a heat treated carbon bolt. Hardened to increase its strength, it’s most commonly found in automotive applications. Grade 5 bolts have 3 evenly spaced radial lines … resembling an airplane propeller.
What are the metric bolt grades?
There are three common grades for SAE (fractional) and four common grades for metric fasteners. These are 2, 5, and 8 for SAE, and 5.8, 8.8, 10.9, and 12.9 for metric. Each has specific strengths. These bolts are the common shiny silver zinc bolts that are used for general purposes.
