11 Years Factory wholesale ASTM A194 4 Heavy Hex Nuts to Swiss Importers

11 Years Factory wholesale ASTM A194 4 Heavy Hex Nuts to Swiss Importers

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ASTM A194/A194M 4 Heavy Hex Nuts API 6A Flange Valve Wellhead Heavy Hex Nuts Dimension Standard: ASME B18.2.2, ASME B18.2.4.6M, ISO 4033, Din934 H=D Inch Size: 1/4”-4” with various lengths Metric Size: M6-M100 with various lengths Other Available Grade: ASTM A194/A194M 2H, 2HM, 4, 4L, 7, 7L, 7M, 8, 8M, 16 and so on. Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc. Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality, Comp...


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11 Years Factory wholesale ASTM A194 4 Heavy Hex Nuts to Swiss Importers Detail:

ASTM A194/A194M 4 Heavy Hex Nuts

API 6A Flange Valve Wellhead Heavy Hex Nuts

Dimension Standard: ASME B18.2.2, ASME B18.2.4.6M, ISO 4033, Din934 H=D

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A194/A194M 2H, 2HM, 4, 4L, 7, 7L, 7M, 8, 8M, 16 and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality, Competitive Price, Timely Delivery,Technical Support, Supply Test Reports

Please feel free to contact us for more details.


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11 Years Factory wholesale ASTM A194 4 Heavy Hex Nuts to Swiss Importers detail pictures


Our group through specialist training. Skilled expert knowledge, sturdy sense of assistance, to fulfill the provider needs of shoppers for 11 Years Factory wholesale ASTM A194 4 Heavy Hex Nuts to Swiss Importers, The product will supply to all over the world, such as: Angola, Lyon, Melbourne, We have more than 100 works in the plant, and we also have a 15 guys work team to service our customers for before and after sales. Good quality is the key factor for the company to stand out from other competitors. Seeing is Believing, want more information? Just trial on its products!



  • Aspropyrgos SITE 1985/87,Part 5

    Unfolding memories 30 years later.
    Upgrading Project:Contract Nr:218-AF-14-007 Aspropyrgos Refinery

    Video was taken during the upgrading of Aspropyrgos refinery in 1985 /1987, at Greece – BIOKAT ATBEE being the main Contractor for Mechanical Electrical and Instrumentation Works- of Units:
    3300, 3900 3100,4000,4700,4100/4200 and 3600/4300 Lump Sum turnkey Project.

    In this Part 5 there are shown the followings:
    a) The final placement on its foundation of Vessel/Tower N4101, weight 249 Metric. ton, performed by Am. Hoist Derrick Crane/BIOKAT ATBE, utilizing a Boom=230ft(70,12mtr) , Mast =230ft(70,12mtr on the 23RD March 1986 , up to 12:53.20 minute.

    The tower had been upraised above the installed anchor bolts which were if I remember well 36…It was a very difficult task to lower the tower so that all the installed anchor bolts to pass through the proper holes of the tower andat the same time the tower to have the proper orientation (previous part of N4101 erection
    https://youtu.be/d0l1qxtOFTg )

    b) As from 13:02.52 minute, the erection procedure of Vessel/Tower K4101, weight 129 Metric ton, performed by Am. Hoist Derrick Crane/BIOKAT ATBE, utilizing a Boom=280ft (85,23mtr), Mast =230ft(70,12mtr) which it was lifted on two parts:

    This tower was to be up raised above the already installed steel structure and then lowered into this within this steel structure till to be secured on its foundation. Thus due to boom length/mast of AM Hoist restriction, I proposed the caudal section to be cut, thus making this lift possible with a minor change in the boom of the crane. Therefore, only for this lift, which it was the last one of the heavy lifts, a 50ft long section of boom was added to increase the total length of the boom as from 230 ft to 280ft.
    Thus allow safe “boom to tower” clearance during erection at the out most lift position, when lifting object comes to the closest distance as from the boom. ( note the clearance at the last minute of this video)

    In this video the upper section of the Tower K4101 it is erected all the (way) height above the steel structure and then lowered in to meet the caudal section, already being installed.
    The last part of the erection is shown on Aspropyrgos SITE 1985/87, Part 6 “you tube video”

    More details Aspropyrgos Site 1985/87 in here



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