Screw with cross hole and embedded seat.
This is a screw that incorporates a washer used to prevent loosening and to avoid the sinking of the seat surface. The screw threads are rolled with the washer in place, ensuring that the washer does not detach from the screw. This eliminates the hassle of inserting the washer, prevents it from falling out, and helps improve work efficiency. The head has a flat top and a conical seat shape. When measuring length, the length of a pan head screw is measured from the top surface, while other screws measure from the neck down, making it appear shorter. It is used when you want the head to be flush with the component without any protrusion. The component must be pre-machined with a conical recess to match the seat surface. If this machining is insufficient, the head will not be flush. It is commonly used for the installation of building fixtures, with hinge fastening being a typical example.
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basic information
Material … Iron (equivalent to SWCH10R), stainless steel, brass, etc. Surface treatment … Chromate, unichrome, trivalent white, trivalent black, nickel, etc. Nominal diameter … M3 and above Embedded washer … Countersunk serrated washer
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Applications/Examples of results
○To improve work efficiency! ・Prevention of forgetting to insert washers ・Elimination of the hassle of inserting washers ・Prevention of washers falling out ・Bulk procurement of screws and washers, etc.
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Company information
Our company manufactures and sells screws with integrated washers. The materials include iron, stainless steel, and brass, with sizes ranging from nominal diameter M2 to M16 and lengths up to 300L. We also handle various surface treatments, including non-chrome options. In addition to integrated screws, we accept orders for various rivets produced through cold forging, as well as rolling processing for supplied parts, and thanks to this, we produce 3 million screws daily. We have recently increased our equipment and relocated our manufacturing department to a new factory to further enhance our production capacity. Since our establishment in 1968, we have been recognized by our customers for our quick response to jobs of all sizes, making us a flexible company, and we have recently received an award for our quality as well. Please feel free to contact us.
