Our socket head cap screw assortment is made from high-quality alloy steel and have recessed hexagonal heads.
A hex socket head cap screw has a cylindrical barrel head with a hexagonal socket and is considered a machine screw.
Most other machine screw heads have a larger diameter, but allen head machine screws are just 1.5 times the normal thread diameter.
There are a few other names that may be used to refer to socket cap screws, including socket head cap screws, cap head socket screws, hex socket head screws, and socket head allen bolt.
There is no need for an external clearance when it comes to the fastening of these components.
This is something that is often required of screws with a hex head so that a wrench or socket may need be used.
Because of these characteristics, a metric socket head cap screw is an excellent choice for usage in areas that have limited space.
When using a hex socket head bolt, it is common practice to recess the head of the screw into a counterbored hole.
Because of this, a hex socket head screw has a neat look, and it does not leave any protrusions that may get caught on anything or be damaged, hence it is often used in sports equipment like bicycles.
As opposed to bolts and screws, which are often fitted with the head protruding above the mounting surface, a socket cap bolt is generally inserted with a flush head inside a counterbore.
The majority of machine screws and bolts have their length specified as the overall length of the shaft, which takes into account both the threaded part and the unthreaded shank, but does not take into account the head.
With a allen head cap screw, on the other hand, the length that is given refers to the entire length of the screw, which includes both the head and the shaft.
This is also the method that is used to measure countersunk head screws.
These allen head screws are employed in more demanding mechanical applications, which necessitates the availability of higher grades.
The tensile strength of a socket cap screw is represented by two values that are spaced apart by a point.
It is important to note that the point that you are looking at is a separator and not a decimal point.
This is the ratio of the ultimate tensile strength (UTS) to the yield strength (YS) in MPa (megapascals) divided by 100.
As a general rule, a socket head cap screw is available in grades 5.8, 8.8, and 10.9.
Grade 12.9 is a common option for a socket head machine screw; this designation indicates that the material has a UTS of 1200 PSI or MPa (megapascals) and will yield at 90 percent of this value (1080 MPa.)
This 190-piece Socket Head Cap Screw Assortment (CS12970PB) from our company is pre-packaged in a plastic box with compartments that are simple to store and include the following sizes and amounts of screws:
10 pieces each of: 6-32 by 1/2″ and 1″; 8-32 by 1/2″, 3/4″, and 1″; 10-32 by 1/2″, 3/4″, and 1″; 10-24 by 1/2″ and 1″; 1/4″-20 by 1/2″, 3/4″, 1″, 1-1/4″, and 1-1/2″; and 1/4″-28 by 3/4″, 1″, 1-1/4″, and 1-1/2″.
255 Piece Metric Socket Head Cap Screw Assortment (CS12980PB):
25 pieces each of: M4 x 0.7mm by 10mm, 12mm, 20mm, and 25mm; M5 x 0.8mm by 12mm and 20mm; 10 pieces each of M5 x 0.8mm by 25mm and 30mm; M6 x 1.0mm by 12mm, 20mm, 25mm, 30mm, and 40mm; M8 x 1.25mm by 20mm, 25mm, and 30mm; 3 pieces M8 x 1.25mm x 40mm; and 2 pieces M8 x 1.25 x 45mm.