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Thread: Help with mold parts

  1. #1

    Help with mold parts

    Hello hope this is the right place to post this . I have and old Thompson Center 54 cal Maxi ball mold and the sprue plate screw broke , anyone have any advice about finding a replacement screw . Thanks Tony

  2. #2
    Boolit Master

    Join Date
    Mar 2013
    Location
    Northwest Ohio
    Posts
    7,240
    These are usually a off the shelf item now. Get the measurements from the broken one. Head dia, shoulder dia, length and thread size dia, threads per inch and length. Check McMaster Carr, MSC graingers and Other suppliers. A local hardware may have them also in the screw bolt racks and these may be available as a single piece. Also consider replacing the spring washer under the head while your at it.

  3. #3
    Boolit Master
    runfiverun's Avatar
    Join Date
    Dec 2007
    Location
    soda springs Id.
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    27,430
    cap screw and hacksaw if all else fails.
    it's all an educated guess,,,, till the trigger is pulled.

    this opinion brought to you by mister low-tech solution..

  4. #4
    Thanks guys !

  5. #5
    Boolit Master
    Join Date
    Nov 2006
    Posts
    3,101
    I've gone so far as to drill right through and use a machine screw and nut.

  6. #6
    Super Moderator




    Buckshot's Avatar
    Join Date
    Mar 2005
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    So. California
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    11,511
    ..............I'd post this request on the Muzzle Loading forum. I'll bet someone there has a similar mould and should be able to give you the thread pitch. Some SP pivot pins have an enlarged shoulder under the head for the SP to bear against instead of on the threads. MSC or McMaster-Carr may have what your want. You may even be lucky enough to be allowed to buy only ONE If you don't have any luck being able to buy only one, and a box of a hundred would cost too much, get ahold of Lathesmith here on the Vendor Sponsor forum.

    To gin one up he'll need some info like thread pitch & length, OD and length of the shoulder (if there is one).

    .................Buckshot
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check