Hexagon Head Bolt With Waisted Shank Sp End

The feature of the hexagon head bolt with waisted shank Sp end is that the middle part is relatively narrow and the tip is pointed or conical, which is convenient for alignment during installation.

Applications and parameters

Hexagon head bolt with waisted shank Sp end is used for building factory buildings or outdoor advertising frames, and they can fix the connection points of steel beams. The slender waist in the middle can counteract the deformation caused by the thermal expansion and contraction of the metal. The flat head at the Sp end can be firmly clamped in the pre-drilled hole and is not afraid of loosening due to strong wind.

Some covers or instrument brackets on the aircraft need to be disassembled and inspected regularly. Using hexagon head screws with waisted shank Sp end can reduce the wear of parts caused by repeated screwing. They can absorb high-frequency vibrations during flight, thereby preventing sudden breakage of screws.

Hexagon head screw with waisted shank Sp end can withstand high-frequency vibrations, so they are used in equipment such as treadmills and gantry frames in gyms. The height adjustment bracket of the operating table will use this kind of screw. The flat head at the Sp end will not scratch the surface of the equipment.

Precautions

When installing the hexagon head bolt with waisted shank Sp end, be sure to align them with the hole position before tightening. Do not tighten them forcibly! The thin waist part in the middle has a lower strength than ordinary screws and is prone to breakage if too much force is applied. In addition, for Sp end (flat end or self-tapping end), it is necessary to clearly determine whether it is a flat end or a pointed end. A flat end is suitable for pre-drilled hard materials, while a pointed end can be directly pushed into wood or plastic.