What size head is M8?
SOCKET HEAD CAP SCREW – METRIC
| Size | Diameter | Head Diameter |
|---|---|---|
| M4-0.7 | 4.00 | 7.00 |
| M5-0.8 | 5.00 | 8.50 |
| M6-1.0 | 6.00 | 10.00 |
| M8-1.25 | 8.00 | 13.00 |
Are all socket head bolts Grade 8?
Socket head cap screws are not grade designated as are hex head cap screws. A standard inch series socket head cap screw is 20% stronger than a Grade 8 hex head cap screw and 50% stronger than a Grade 5 hex cap screw.
Is standard for socket head bolt?
IS 2269: Hexagon Socket Head Cap Screws.
How are socket head cap screws measured?
Length is measured from the point at which the head sits flat with the surface, to the tip of the threads. Hex, pan, truss, button, socket cap, and round head screws are measured from right under the head to the end of the threads. Flat head screws are measured from the top of the head to the tip of the threads.
What grade are socket head bolts?
Typical bolts are supplied as grade 5.8, 8.8, or 10.9. Socket cap screws are often available in grade 12.9, meaning it has a UTS of 1200 MPa and will yield at 90% of this (1080 MPa).
What size metric bolt has a 13mm head?
Metric Bolt Head/Wrench Size
| Bolt Diameter (mm) | Head/Wrench Size (mm) | |
|---|---|---|
| ANSI/ISO | DIN | |
| 8 | 13 | 13 |
| 10 | 16 | 17 |
| 12 | 18 | 19 |
How do I know what grade my Allen bolts are?
Hex bolt grade refers to the grade of steel used in manufacturing the screw. This determines the amount of stress that can be applied to the fastener, known as “tensile strength.” The grade of a hex cap screw can be identified by markings on the head of the screw.
What grade are button head cap screws?
grade 10.9
The button head socket screws are 100% alloy steel grade 10.9. The low profile of the socket button head makes a very clean looking, and offers a much larger contact surface.
What is hex socket head bolt?
Hexagon socket head cap screws (cap bolts) Bolts with a hexagonal hole on a cylindrical head that’s fastened with a hex wrench. Although they are also called cap screws or socket screws, the most common names are “hexagon socket head cap screw” and “cap bolt”.
How do I know if my screws are standard or metric?
Most bolts come in pretty uniform lengths; and this is a good way to determine if the bolt is metric or standard. Measure the bolt length (not including the cap), and see if it’s closer to a fraction of an inch, or a nice and round millimeter length that ends in 5 or 0.