Factory making ASTM A307 Grade A Hex Cap Screws for French Factories

Factory making ASTM A307 Grade A Hex Cap Screws for French Factories

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ASTM A307 Grade A Hex Bolts Hex Cap Screws Standard: ASME B18.2.1 (Various types of configuration are also available) Thread Size: 1/4”-4” with various lengths Grade: ASTM A307 Grade A Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on 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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We now have several exceptional workers customers good at marketing, QC, and working with types of troublesome trouble during the creation system for Grub Screws M4, Heavy Hex Bolts Manufacturer, Structural Bolts Nz, Quality first, Price lowest, Service best is the spirit of our company. We sincerely welcome you to visit our company and negotiate mutual business!
Factory making ASTM A307 Grade A Hex Cap Screws for French Factories Detail:

ASTM A307 Grade A Hex Bolts Hex Cap Screws

Standard: ASME B18.2.1

(Various types of configuration are also available)

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

Grade: ASTM A307 Grade A

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

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.


Product detail pictures:

Factory making ASTM A307 Grade A Hex Cap Screws for French Factories detail pictures


We have quite a few great team customers very good at internet marketing, QC, and dealing with kinds of troublesome trouble while in the output approach for Factory making ASTM A307 Grade A Hex Cap Screws for French Factories, The product will supply to all over the world, such as: Surabaya, Rio de Janeiro, Munich, Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact me. We are looking forward to forming successful business relationship with new clients around the world.



  • This is a quick video to show how to install the HuMa R-10 regulator.
    You need to make sure your rifle is not loaded and does not have a magazine fitted.
    Remove the buddy bottle following the normal bottle removal procedure.
    Remove the single cap head screw from the centre of the toast rack with a 5mm Allen key.
    Remove the anti-tamper cap on the regulator (separate instructions will be sent with the regulator).
    Remove the brass regulator body from the regulator block.
    Make sure the all the parts and O rings have been removed but leave the little grub screw in the hole.
    Clean out the hole.
    Screw in the pre-set HuMa regulator.
    Refit the regulator block to the action.
    Refit the buddy bottle.
    Chrono your rifle to make sure it is legal with a selection of pellets.
    Adjust the power if necessary (separate instructions will be sent with the regulator).

    Keep it legal and enjoy trouble free shooting!

    The regulators are available from my website www.xtxair.co.uk. They will work in sub 12ftlbs rifles and in FAC rifles.

    Please note that if your R-10 has been blueprinted by John Bowkett these regulators will not work because of the oversize screw he fits to the regulator block when carrying out a blueprint. The larger screw breaches the O ring seal on the HuMa regulator. If you want to fit a HuMa regulator to a blueprinted rifle you will have to replace the regulator block.

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