OEM/ODM Factory for ASTM A193 B7 Heavy Hex Bolts to Czech Factories
A193 B7 Heavy Hex Bolts Heavy Hex Cap Screws Standard: ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.7M (Various types of head are available) Inch Size: 1/2”-2.3/4” with various lengths Metric Size: 1/2-M72 with various lengths Grade: ASTM A193 B7 Finish: Black Oxide, Zinc Plated, Zinc Nickel Plated, PTFE 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.
    • OEM/ODM Factory for ASTM A193 B7 Heavy Hex Bolts to Czech Factories Related Video:



    1. Loosen grub-screws left/right.

    2. Bring the observed object to binocular coincidence by excentric rotation of one or if necessary both telescopes.

    3. Gently tighten the grub-screws. –

    4. Check if the loupes are securely locked.

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