What year is a John Deere STX38?
Two basic versions of the STX38 were the original “yellow-deck” from 1989 to 1993, and the later “black-deck” from 1994 to 1997….John Deere STX38 Yellow Deck.
| Variants | |
|---|---|
| STX38 Yellow-deck | 1988-1993 |
| STX38 Black-deck | 1994-1997 |
What size are SBC motor mount bolts?
What size are the motor mount bolts for a small block? Re: What size are motor mount bolts? 3/8″ with a 9/16 head hold the mount to the block… 7/16″ with a 5/8 head is the single bolt that holds the engine to the frame.
How long should my engine stand bolts be?
Get bolts that are long enough so the threads stick out about 5/8″ from the stand, into the engine. Put washers between the bolt head and the engine stand as needed to keep them from sticking out too far. Or, pick-up a length of “threaded rod” and cut to the lengths you need.
Can I use Grade 5 bolts for engine stand?
X2, the grade 5 bolts can handle way more than the engine stand can. If you’re not living on the edge you’re taking up too much space!
What is a Grade 8 bolt?
A grade 8 bolt is stronger than the more commonly used grade 5. It is made of alloy steel and has six radial lines on the top of the bolt head. Grade 8 bolts have a tensile strength of 150,000 pounds per square inch.
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 is the difference between A325 and Grade 8 bolts?
A325 bolts are typically manufactured from a medium carbon steel (although they can be made from an alloy) while SAE grade 8 bolts are made from a medium carbon alloy steel. Grade 8 bolts are significantly stronger than an A325.
What is the difference between a 10.9 and 12.9 bolt?
12.9 grade steel has 120% of the tensile strength of 10.9 grade steel. The “12” prefix indicates a tensile strength of X100 N/mm^2 and the “9” suffix indicates a multiplier. Both 12.9 and 10.9 have the same multiplier, so the comparison is straightforward: 12 to 10.
How hard 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.
What does the 10.9 on the head of a bolt mean?
If you have ever looked a metric hex bolt you might notice the markings 8.8, 10.9 or 12.9 this does not mean grade 8,10 or 12. The grade 8.8 refers to the tensile strength which is generally 116,000 psi, grade 10.9 is generally 150,000 and grade 12.9 is generally 175,000 psi.
What does 8.8 on the head of 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.
What do the markings on a bolt head mean?
The markings on the heads of bolts serve two different purposes: The markings can indicate who manufactured the bolt. This will vary from manufacturer to manufacturer, but is usually one, two or three characters. The markings can identify the standard to which the bolt was made.