P100 Valve Thread Sizes
The number listed in the chart below tells the size of the mandrel. The first two numbers indicate the thread pitch and the last two numbers indicate the diameter in 64ths of an inch.
NOTE: In most cases you will need at least two P100 Mandrels to repair damaged threads. One mandrel will be the actual size of the horn as listed below and the second will be smaller or larger depending on the type of threads.
▪1 size larger for external thread or
▪1 size smaller for internal thread
As an example, if you needed to repair an All Star cornet, you would order one P100 in size 3651 and the second in size 3652. If the size you need is not listed on the charts, Ferree’s will make it for you. As always, our customer service people will be glad to help you. These mandrels may be ordered individually or more economically in sets of 10.
 SIZE WILL FIT THESE HORNS
  1. 3676 Besson tuba-top & bottom, Conn 12J tuba-top & bottom, Conn 15J tuba-top & bottom,
  2. 4047 Blessing (old Silvertone)-bottom, Carl Fischer-bottom. Lyons-bottom, Martin Elkhart-bottom, Rudy Muck-bottom, Silvertone-bottom
  3. 4048 Blessing-bottom, Buescher (old Silvertone)-top, Deg-bottom
  4. 4050 Martin Elkhart-top
  5. 4051 Blessing (old Silvertone)-top, Jupiter 520-top & bottom, Jupiter 600-top & bottom, Jupiter 1000-top & bottom, Jupiter 800-top & bottom, Lyons-top, Martin mellophone-bottom, Silvertone-top,
  6. 4052 Buescher, old-top, Conn (all except 16B or Japanese)-top & bottom
  7. 4053 Jupiter 1000 trumpet-top, Jupiter 800 trumpet-top, Cavalier mellophone-top & bottom, Conn mellophone-bottom, Pan American mellophone-top & bottom
  8. 4055 Jupiter mellophone-top & bottom
  9. 4056 Martin, mellophone-top & bottom, Jupiter valve trombone-top & bottom
  10. 4057 Buescher baritone-top & bottom
  11. 4061 Jupiter euphonium-top & bottom, Jupiter tuba-top
  12. 4062 Conn, 101 baritone-top & bottom, Conn, 141 baritone-top & bottom, Pan American baritone-top & bottom
  13. 4065 Conn Eb sousaphone-top & bottom, Pan American Eb sousaphone-top & bottom
  14. 4066 Conn, 20I baritone-top & bottom
  15. 3673 Reynolds Eb sousaphone-top & bottom
  16. 3672 Blessing bass-top & bottom, Deg bass-top & bottom, King bass-top & bottom, Olds bass-top & bottom, Reynolds bass, new-top & bottom
  17. 3669 York sousaphone-top & bottom
  18. 4070 Martin BBb sousaphone-bottom, Martin Eb sousaphone-top
  19. 4071 Reynolds bass, old-bottom
  20. 4073 Jupiter sousaphone-top & bottom, Jupiter tuba-bottom
  21. 4074 Yamaha tuba-top & bottom
  22. 4075 Bundy sousaphone-top & bottom, Martin BBb sousaphone-top
  23. 4076 Reynolds bass, old-top, Signet sousaphone-top & bottom
  24. 4078 Conn, 14K sousaphone-top & bottom
  25. 4068 Yamaha, YBB102 tuba-top & Bottom
  26. 4067 Marin Eb sousaphone-top & bottom, Yamaha euphonium-top &bottom, Yamaha YEB321 euphonium-top & bottom, Yamaha YEB311 baritone-top & bottom
 
CORNETS HAVING INTERNAL THREAD SIZE WILL FIT THESE HORNS
  1. 3645PI Reynolds, Best-top Selmer, Paris-bottom
  2. 3647PI Getzen, new-top Noblet-top Selmer, Paris-top
  3. 3648PI Getzen trumpet-top
  4. 3650PI Reynolds, Best-bottom Bundy-top
  5. 3651PI H Pedler-top
  6. 4051PI Blessing-top Deg-top Lyons-top
 CORNETS, TRUMPETS, ALTO HORNS AND MELLOPHONES BRAND SIZES LISTED ALPHABETICALLY
  • All Star-top & bottom 3651
  • American Standard-bottom 3649
  • American Standard-top 3653
  • Bach, Elkhart-bottom 3247
  • Bach, Elkhart-top 3251
  • Bach, N.Y.-bottom 3247
  • Bach, N.Y-top 3250
  • Benge-bottom, US Besson-bottom 3647
  • Benge-top, US Besson-top 3652
  • Besson, English-bottom 3650
  • Besson, English-top 3653
  • Besson, London 700-bottom 3647
  • Besson, Stratford-bottom 3651
  • Besson, Stratford-top 3652
  • Blessing (old Silvertone)-bottom 4047
  • Blessing (old Silvertone)-top 4051
  • Blessing-bottom 4048
  • Blessing-top 4051PI
  • Buescher, old-top 4052
  • Buescher-bottom 4048
  • Bundy-bottom 3648
  • Bundy-top 3650PI
  • Carl Fischer-bottom 4047
  • Carl Fischer-top 3649
  • Cavalier mellophone-top & bottom 4054
  • Cleveland, Japanese-bottom 3648
  • Cleveland, Japanese-top 3652
  • Cleveland-bottom 3649
  • Cleveland-top 3653
  • Collegiate (not Japanese)-top & bottom 3652
  • Collegiate, Japanese-bottom 3648
  • Collegiate, Japanese-top 3652
  • Conn 1000B-top 3654
  • Conn Mellophone-top & bottom 4054
  • Conn, (ex. 16B or Japanese)-top & bottom 4052
  • Conn, 1000B-bottom 3650
  • Conn, 16B trpt.-bottom 2749
  • Conn, 16B trpt.-top 2753
  • Conn, 18B-bottom 3650
  • Conn, 60B-bottom 3651
  • Conn, Japanese-bottom 3648
  • Conn, Japanese-top 3652
  • Couesnon-top & bottom 3651
  • Deg-top 4051PI
  • Getzen trumpet-top 3648PI
  • Getzen, new-top 3647PI
  • Pedler-bottom 3648
  • Pedler-top 3651PI
  •  Holton alto horn-top & bottom 3653
  • Holton-top & bottom 3652
  • Huttl-bottom 3650
  • Huttl-top 3653
  • Jupiter 1000 trumpet-top 4053
  • Jupiter 1000-bottom 4051
  • Jupiter 520-top & bottom 4051
  • Jupiter 600-top & bottom 4051
  • Jupiter 800 trumpet-top 4053
  • Jupiter 800-top & bottom 4051
  • Jupiter mellophone-top & bottom 4055
  • King-bottom 3649
  • King-top 3653
  • Lyons-bottom 4047
  • Lyons-top 4051
  • Martin Elkhart 4047
  • Martin Elkhart-top 4050
  • Martin mellophone-bottom 4051
  • Martin mellophone-top & bottom 4055, 4056
  • Noblet-bottom 3648
  • Noblet-top 3647PI
  • Nova-bottom 3248
  • Nova-top 3252
  • Olds, (not Ambassador)-top 3652
  • Olds, Ambassador-bottom 3650
  • Olds, new-top 3654
  • Olds, old model (not Ambassador)-bottom 3648
  • Pan American Mellophone-top & bottom 4054
  • Regent-bottom 3648
  • Regent-top 3651
  • Reynolds, Best-bottom 3650PI
  • Reynolds, Best-top 3645PI
  • Reynolds, Emperor-top 3651
  • Reynolds, Medalist, new-bottom 3650
  • Reynolds, Medalist, new-top 3654
  • Reynolds, Medalist, old-top & bottom 3650
  • Reynolds, Specialist, new-bottom 3650
  • Reynolds, Specialist, new-top 3654
  • Rudy Much-top 3649
  • Rudy Muck-bottom 4047
  • Schilke piccolo trpt.-top & bottom 3647
  • Selmer, Paris-bottom 3645PI
  • Selmer, Paris-top 3647PI
  • Silvertone-bottom 4047
  • Silvertone-top 4051
VALVE TROMBONES, BARITONES & SOUSAPHONES
  • Bach, marching baritone-bottom 3664
  • Bach, marching baritone-top 3665
  • Besson baritone, 4th valve, English-top & bottom 3668
  • Besson baritone-top & bottom 3676
  • Besson, baritone, 3 valve, English-top & bottom 3665
  • Blessing baritone-top & bottom 3668
  • Blessing bass-top & bottom 3672
  • Buescher baritone-top & bottom 4057
  • Bundy euphonium-bottom 3663
  • Bundy euphonium-top 3667
  • Bundy sousaphone-top & bottom 4075
  • Conn 12J tuba-top & bottom 3676
  • Conn 15J tuba-top & bottom 3676
  • Conn Eb sousaphone-top & bottom 4065
  • Conn sousaphone, 20K-top & bottom 3288
  • Conn, 10I baritone-top & bottom 4062
  • Conn, 14I baritone-top & bottom 4062
  • Conn, 14K sousaphone-top & bottom 4078
  • Conn, 20I baritone-top & bottom 4066
  • Couesnon baritone-top & bottom 3651
  • Deg bass-top & bottom 3672
  • Deg-bottom 4048
  • Getzen, new-bottom 3649
  • Getzen, old-top & bottom 3649
  • Gretsch-bottom 3648
  • Gretsch-top 3653
  • Holton Baritone-top & bottom 3660
  • Holton sousaphone-top & bottom 3668
  • Jupiter euphonium-top & bottom 4061
  • Jupiter sousaphone-top & bottom 4073
  • Jupiter tuba-bottom 4073
  •  Jupiter tuba-top 4061
  • Jupiter valve trombone-top & bottom 4055
  • King baritone-top & bottom 3664
  • King bass-top & bottom 3672
  • King sousaphone-top & bottom 3672
  • Martin BBb sousaphone-bottom 4070
  • Martin BBb sousaphone-top 4075
  • Martin Eb sousaphone-bottom 4067
  • Martin Eb sousaphone-top 4070
  • Olds baritone-top & bottom 3664
  • Olds bass-top & bottom 3672
  • Pan American baritone-top & bottom 4062
  • Pan American Eb Sousa-top & bottom 4065
  • Reynolds bass, new-top & bottom 3672
  • Reynolds bass, old-top 4076
  • Reynolds Eb sousaphone-top & bottom 3673
  • Signet sousaphone-top & bottom 4075
  • Yamaha euphonium –top & bottom 4067
  • Yamaha mellophone-top & bottom 3653
  • Yamaha tuba-top & bottom 4074
  • Yamaha, YBB102 tuba-top & bottom 4068
  • Yamaha, YEB321 euphonium-top & bottom 4067
  • Yamaha, YEP311 baritone-top & bottom 4067
  • Yamaha-bottom 3648
  • Yamaha-top 3652
  • York baritone-bottom 3656
  • York baritone-top 3660
  • York sousaphone-top & bottom 3669
  • York-bottom 3646
  • York-top 3649