11 Years Factory wholesale DIN6921 ISO4162 Hexagon Flange Bolts and Screws for Portland Factory

Hexagon Flange Screws and Bolts Standard: DIN6921, ISO4162, ISO8102, ASME B18.2.3.9M, ASME B18.2.1, Metric Size: M6-M20 with various lengths Inch Size: 1/4”-3/4” with various lengths Material Grade: Carbon Steel, Alloy Steel, Stainless Steel covers grade ISO 898-1 4.8, 8.8, 10.9; SAE J429 Grade 5, 8; ASTM A193 B7, A320 L7; ASTM F593 A, B, C, D, E, F, G, H; ISO 3506 A2-70, A4-70 Finish: Plain, Black Oxide, Zinc Plated, Hop Dipped Galvanized, Dacromet, etc. Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports Please feel free to contact us for more details.

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    Hammersmith Bridge was built in 1887 and is one of the most loved and most photographed Thames crossings. It is a Grade II* listed structure.

    It has a very high traffic volume for its age, with more than 20,000 vehicles crossing it every day. It was never designed to carry this volume and weight of traffic and the constant vibration from those vehicles damages the bridge and road surface.

    It is now time for the bridge to have a full refurbishment. This will include strengthening work and a full resurfacing that will last for many years.

    Major repair works to the bridge are expected to start in late 2018.

    The bridge has 172 huge bolts, all of which will need inspecting and some may need replacing, as part of the refurbishment.

    There are only two bridges like this in the world, the other spans the Danube River in Budapest, Hungary.

    Because of this replacement parts and tools – such as the giant spanner being used here – often have to be custom made.