Mushroom head internal thread tube
Special design for an internal thread tube, mushroom head, partially knurled body
| Description | |
|---|---|
| Material | Carbon steel / heat treated |
| Type | Special tube |
| Driving recess type | Internal thread |
| Head Type | Special mushroom head |
| Thread Type | Metric thread |
| Surface color | plain finish |
| Thread size / diameter | M4 |
| Length | 45.00 mm |
| Special feature | Partially knurled body with reduced shank |
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This screw features a rectangular head with a cup-shaped top.
a) A step shoulder pin has a shoulder, or stepped section, where the diameter changes. This creates a larger diameter at one end of the pin, forming a "step." Unlike threaded pins, these pins do not have threads along their length. They are smooth and cylindrical.
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b.) The knurled head features textured grooves around its circumference, providing enhanced grip for hand-tightening or loosening. Meanwhile, the internal threads inside the hole enable the screw to be securely fastened to a threaded component or inserted into a pre-threaded hole.
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b.) This design allows the rod to be used in applications where two components need to be joined, often with nuts or other fasteners securing the ends.
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