"Excellent torque transmission power" and "no cam-out" improve the workability, safety, and reliability of screw fastening!
This is a recess that pursues the rationality of screw fastening. It excels in "torque transmission" and has "no cam-out," improving the workability, safety, and reliability of screw fastening, and is useful for both production design and disassembly design. It is also an optimal near-future fastening system for the IS014000 series (environmental regulations). 【Features】 - No cam-out during tightening. - High durability of tightening tools. - No recess collapse during tightening. - Suitable for miniaturization and thin head of screw components. - Good adhesion with the driver, enhancing work efficiency. *For more details, please refer to the catalog or contact us.
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basic information
The basics of screw fastening involve converting the tightening torque (rotational force) applied to the torque transmission part into the axial force of the screw, thereby securely joining two or more components or materials. LH sticks pursue the rationality of screw fastening, which can be broadly classified into LH type (Line Head) with the torque transmission part on the outer circumference of the screw head and LR type (Line Recess) with it on the inside. In terms of compatibility with tightening tools, they are composed of tapered types (LH, LR) that have a good grip and straight types (LH-S, LR-S) that do not have a grip, and are further systematized with ultra-line holes (ULR) primarily for micro screws and Rockstar R (mainly for construction screws) that apply ULR.
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Applications/Examples of results
Does not cam out during tightening. High durability of tightening tools. No recess collapse occurs during tightening. Suitable for miniaturization and thin head of screw components. Good adhesion with the screwdriver improves work efficiency.
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Company information
Katayama Screw Industry is a total manufacturer of screws. Our screws are highly regarded not only in Japan but also in countries around the world. As a pioneer in the screw industry, we will continue to contribute to society with tens of thousands of products.
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