SAE grade of a bolt refers to the classification system established by the Society of Automotive Engineers (SAE) that indicates the strength and material properties of the bolt. The grades range from 1 to 8, with higher numbers indicating stronger bolts, typically made from alloy steel with specific heat treatment processes. Each grade has a specified minimum tensile strength, which helps in determining the appropriate bolt for various applications. Common grades include Grade 2, Grade 5, and Grade 8, with Grade 8 being the strongest.
The SAE equivalent steel grade for Grade 8.8 according to BS 3692 is typically SAE J429 Grade 5. Grade 8.8 is a medium strength bolt made from carbon steel, while SAE J429 Grade 5 also denotes medium strength, specifically with a minimum tensile strength of 120,000 psi (approximately 827 MPa). Both grades are commonly used in applications requiring good mechanical properties.
Sae-20w
A bolt.
SAE is an acronym for the "Society of Automotive Engineers" and when used in conjunction with tool grade or measurement (not oil), is a standardized unit of non-metric measurement. Simply put, in measurements it means "Non-Metric". The name "SAE" used to grade motor oil has a totally different meaning, although instituted by the same society.
Society of Automobile EngineersSee Link below for more details.
If there are lines coming inward from the outside on the head then this is an SAE bolt, not metric. If there are three of these lines than it is a grade five bolt.
An SAE Grade 8 bolt will have 6 radial lines on it as shown below. \ | / / | \
SAE sets standard sizes and grades for bolts.Size and Grade are different:Size is set By the SAE (society of Automotive engineer's) and is stated as thickness followed by thread pitch followed by length 1/4 x 24 (threads per inch) x 1 1/14 (inches long) Grade Is a statement of strength and hardness. Most auto hardware tends to be grade 5 and some high strength stuff is grade 8 or grade 12
10.9 on a metric bolt indicates the hardness (or load, tensile strength, and hardness) of the bolt. This is almost as high as they get and is about the equivalent to a grade 8 SAE or USS bolt. 8.8 is also a common metric hardness.
Sae-20w
sae document j300 defines the highest single grade as 60. this is in reference to viscosity and not the quality of the oil
The length can vary just as with SAE
An SAE bolt is a type of bolt that adheres to the Society of Automotive Engineers (SAE) standards, which specify dimensions, materials, and mechanical properties for fasteners used in automotive and engineering applications. SAE bolts are typically measured in inches and are commonly used in the United States. They come in various grades, reflecting their strength and suitability for different applications. These bolts often feature a hexagonal head and are designed to be used with standard SAE tools.
SAE 10w30
Bolts are typically classified into several grades based on their strength and material properties. Common grading systems include the American Society for Testing and Materials (ASTM) grades, such as ASTM A307, A325, and A490, as well as the SAE grades, like Grade 2, Grade 5, and Grade 8. Additionally, metric bolts are graded according to ISO standards, such as 8.8, 10.9, and 12.9. Each grade indicates the bolt's tensile strength and suitability for different applications.
The ISO viscosity grade of Shell Tellus 37 is 32 and its SAE viscosity grade is 10W. These viscosity grades indicate the fluid's viscosity characteristics at different temperatures and operating conditions.
SAE 10w30 synthetic.