What does the number on a hex bolt mean?

What does the number on a hex bolt mean?

Each grade has a specific bolt strength. No matter the system used to grade the bolts, the higher number means the stronger the bolt. For most home and automotive applications, you won’t need anything more than a grade 8 bolt strength or metric class 10.9.

What is a hex bolt called?

Hex bolts, also called hexagon screw head bolts, hex cap bolts, hex-cap screws, or machine bolts, are a very common choice when it comes to construction and repair. Hexagon screw head bolts come in a large variety of sizes and diameters.

Do they make M9 bolts?

M9 Hexagon Head Bolts 304 Stainless Steel Hex Head Screws Pitch 1.0 / 1.25 | eBay.

What size are hex bolts?

Hex bolts range in size from 1/4″ to 4″ in diameter; 1/4″ to 1 1/2″ sizes are commonly available. Lengths range from 3/8″ to 24″; 1/2″ to 10″ is typical.

What does HDW 8.8 mean?

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 is a #14 screw?

Wood Screw Diameters

Size Major Thread Diameter*
Decimal Nearest Fractional Measurement
#11 .203″ 13/64″
#12 .216″ 7/32″
#14 .242″ 1/4″

Whats a cap screw?

cap screw. noun. a screwed bolt with a cylindrical head having a hexagonal recess. The bolt is turned using a wrench of hexagonal cross section.

Is there such thing as M9?

The M9 is a full-size combat handgun made mostly of metal. A product of its time, many troops find the M9 to be unnecessarily heavy for a piece of kit that few of them will ever actually draw in combat. By comparison, the M17 and M18 weigh 29.4oz and 26oz respectively.

What size is an M9 bolt?

Thread Geometry – Metric Coarse

Thread Major Diameter Minor Diameter Male Thread
M6 6.0 4.773
M7 7.0 5.773
M8 8.0 6.466
M9 9.0 7.466

How are Allen bolts sized?

Hex Bolt Sizes The length of the bolt (measured from the end of the bolt up to under the head) Thread size (the size of the thread, typically using ISO metric or M-style measurements) Thread pitch (the number of threads per inch – the finer the bolt, the more threads per inch and the higher the thread pitch)

What size bolt has 9/16 head?

Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt.

US Bolts
Bolt Diameter (in) Head and Wrench Size (in)
1/4 7/16 or 3/8
5/16 1/2
3/8 9/16