The height adjustment (connection) fittings are used for leveling adjustments between the road surface and the manhole cover.
Manhole-related products include height adjustment (connection) fittings, which are used for leveling the road surface and manhole covers. These include stainless steel and galvanized steel "adjustment bolts (with wrench flats)," "connection nuts (round nuts)" for connecting adjustment bolts, and "adjustment collars (pipes)" which are guide pipes for embedding adjustment bolts in concrete. For more details, please contact us or refer to the catalog.
Inquire About This Product
basic information
【Features】 [Adjustment Bolt (with wrench flat)] ○ M12, M16, Length dimensions 50–450 ○ Made of stainless steel, steel with plating [Adjustment Nut (with wrench flat)] ○ M16, Length 50–250 ○ Outer diameter 22φ [Connection Nut (Round Nut)] ○ For connecting adjustment bolts ○ Available in steel and stainless steel [Adjustment Sleeve (Pipe)] ○ Guide pipe for adjustment bolts ○ To be embedded in concrete ○ Available in various sizes ● For more details, please contact us or refer to the catalog.
Price information
Please contact us.
Delivery Time
※Please contact us.
Applications/Examples of results
For more details, please contact us or refer to the catalog.
catalog（1）
Download All Catalogs
Company information
In today's world, where it is said that "there are no borders in technology," we swiftly incorporate excellent innovations from around the globe and continuously send our own technologies out into the world. This is JL's principle. In 1984, we formed a technological partnership with the British company Cretec and launched high-strength mortar spacers. Furthermore, in 1986, we contracted with the German company Frimeda for lifting anchors, in 1994 with the German company Halfen for cast-in channels, and with the Dutch company Deha for bar couplers, and we are actively selling these products. As overseas cooperative factories, we have foundries and fine ceramic products in South Korea, two joint ventures and one cooperative company in China, two wholly-owned companies in China, one wholly-owned company in South Korea, and a cooperative factory in Vietnam. We contribute widely to the world, not only within Japan, in the manufacturing of construction materials, machine parts, shipbuilding components, and multi-story parking components, as well as surface treatments such as dacromet processing and zinc plating.
![[Industry Trends] End of Dedicated Line Service on March 31, 2029, and Countermeasures](https://image.www.ipros.com/public/default/object/noimage_l.gif?w=280&h=280)