OEM China High quality ASTM A193 B16 All Threaded Stud Bolts to Guatemala Factories

ASTM A193/A193M B16 All Threaded Stud Bolts Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.   Standard: IFI-136, ASME B16.5, DIN976 Inch Size: 1/4”-4” with various lengths Metric Size: M6-M100 with various lengths Other Available Grade: ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2, ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, 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 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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    Here is the freshly reassembled product of a check up. This custom AR-15 build was taken down. First I tried to remove the hand guard. Just my luck, the screws had seized. I made sure I had the right hex wrench and put a little torque on them, stripped – typical of Jon’s luck.

    I always have this ‘go with easiest and quickest’ problem solving issue. I really would recommend going through the manufacturer first, I just was excited to work on my gun some more.

    I slotted the screws, for removal with a flat head screwdriver. If you look closely in the video when I show the old hex head you will see ramps as a result of more broken/stripped material.

    At this point I considered drilling out a hole for my reverse threaded removal tool but opted just to drill off the head and go from there.

    Three screws seized, three drilled out.

    The next step was to drill six new holes aligned with the treads on the barrel nut. Drill press, new screws, grease the screws and installed them. Almost done.

    I have some options to either fill or leave the holes, and I will probably duracoat the stainless torx screw heads.

    Before I do any of that, I will test fire it.



    3D printing Micro Spiner