Monotype Caster/Keyboard Interchangeable Screws

The table below is taken from various Monotype Book of Parts lists, Monotype Parts Lists and Symbol Conversion Lists for the Composition caster, Super caster and Keyboard (see note at the foot of the table). It shows for any given size of screw, all the symbol numbers that use that particular screw. Sizes are diameter and then length, in inches. The part number is shown in parentheses, taken from the Symbol Conversion List, or shown as (?) if not listed there. If the screw has a description of its head, this is shown beneath the part number. Apart from a very few, the list below has not been checked for screws above part 700 (a taper pin and not a screw). Also, sizes for only the one screw are omitted. If the part number, e.g. 290, is known, the shared screws can also be seen from Monotype Parts Numbers, but that list will not show any other part number that might share the same size. Part numbers that do share the same size may differ in head shape, etc. so may not be identical.
(The list below has been formatted to print out on A4 paper).

1/16" 3/32"3/32" 5/32"3/32" 7/32"1/8" 1/8"1/8" 5/32"1/8" 11/64"
(11)but see (31)(34)(55)cont.cont.
29F220B6b27KB1320D428G54KA16
30F29F327KB3279A1528G1948KB9
(?)10F33/32" 1/4"a23KB56CK42a76KB4
144F311F3(29)a61KB147CK4285KC8
145F37G11F2(96)32CT1125SA2
3/32" 7/64"8G1132F9202F18b46KB369SE2
(31)3/32" 11/64"(74)61KB1811KC1128SE7
Countersunk(30)a90KC51/8" 5/32"11KC211/8" 3/16"
20B6Countersunk3/32" 19/64"(95)29KC20(46)
9F337A3(23)Grub(56)66D2
10F3a40A12Bolt43A251B467D2
11F3a49A206KA6836E901/8" 11/64"36E189
7G162A47KA76216E4(67)36E321
8G1a27B13/32" 5/16"302E8Countersunk132E4
3SL15a51F12(137)303E4a28B3197E2
4SL2a25KB510SH20206F1324C1198E2
5SL227KB29 208F2a24C5318E14
86KB8a87KB2 220F750F10105F2
   1G2570H2110G1

continues


1/8" 3/16"1/8" 3/16"1/8" 15/64"1/8" 1/4"1/8" 17/64"1/8" 5/16"
cont.cont.cont.cont.(66)cont.
28G17(?)(97)22SA525H10296E15
10CK255B2297E1723SA525H1244F8
11CK2(80)53SL614SC157KA18c4KA7
1CK15063KB276SL1419SD258KA184KA12
1CK191a64KB37SL1412SE723SH5bKA16
16CT151/8" 13/64"1/8" 1/4"18SE1123SH141KB4
10KA2(77)(47)9SF6(68)18KC33
12KA24Countersunk48A229SF7Countersunka92KC11
24KB1251KA624C1139SL356A10(78)
32KB567KB730C645SL811E8a14C7
a61KB81/8" 7/32"146F246SL8301E8219F9
a77KB44(69)217F647SL892CT1545H31
18KC31Grub75H6(73)d4KA74KA21
34KC31a40A476H69A1632KB145SD2
88KC103B14a4KA1229G333SE123SL12
a90KC86CT23a4KA16a9KB332ST15(?)
92KC948KC526KA2942SE141/8" 5/16"14C7
93KC1192KC116KA72(50)(54)147F7
19SC1(85)7KA21a3D1237A231/8" 3/8"
3SF3Countersunk7KA80a50F13b40A2(94)
62SH14a27KB2023KB68G4b49A256A16
63SH2(99)32KB5428SE962A2334B9
12SL8Countersunka46KB333SF179A1293KC13
13SL882KC858KB7(90)16C833SL7
32SL71/8" 15/64"99KB1251KA1825D120(71)
43SL17(58)18KC50(70)54D2Countersunk
44SL1525D2625KC2Countersunk19E1056A9
54SL154SD234KC3431F1020E1 
58SL4 92KC13 293E17 

continues



1/8" 7/16"1/8" 9/16"5/32" 0.135"5/32" 1/4"5/32" 5/16"5/32" 13/32"
(53)(52)(176)(134)cont.cont.
36E49a51F9Grub42B491KB4(163)
133E1255KA376A3(137)20KC33SL2
209E618KC3230C14175F21SA35SL4
207F211/8" 5/8"222E2313G1762SH3(152)
219F5(128)245E612H4862SH6Countersunk
38H14Headless32CT10a55H3(?)10E11
66H114D157KA71SH297F35/32" 3/8"
59KA135D158KA7(161)(164)(143)
99KB36D111KC1426G349F11107E6
a18KC4382KC248SL373H3(510)92F3
a36KC101/8" 3/4"5/32" 3/16"21SA6Hexagon136F7
25SB14Headless(145)(178)10SA257H3
29SE6(127)b16C8a63KB21(558)58H3
30SE24D392KB5a63KB22Countersunk8KA23
31SE25D3(552)(562)10SA1353KB14
33SH66D3a200F116A38(561)a88KB3
56SH1158SL225/32" 7/32"5/32" 5/16"a36E8820SG2
9SL24BA 5/8"(170)(135)5/32" 11/32"24SG1
(84)(115)15D564A2(142)3SH2
Grub53H3557D516E325D194SH2
37A2225KA1843SL326E3177KB58a4SL4
40A165/32" 1/8"43SL1536E2715/32" 13/32"(?)
49A23(179)44SL3137E2(134)a13D4
62A22Grub44SL1382F278A6(162)
(51)44F2854SL396F512D1297E4
41KC692CT854SL1397F7118F31CK209
 92CT9 107F219KB216SD6
 32ST8 52KB4a34KC16 
 32ST9 a63KB3a33SL9 

continues


5/32" 7/16"5/32" 5/8"5/32" 7/8"3/16" 1/4"3/16" 5/16"3/16" 3/8"
(141)(21)(130)(206)cont.(205)
295E692CT11b53H97SD821SG2a92E6
1KB1532ST11b58SH9(688)28SG292E14
48KB3(553)(171)Grub33SG7216E18
86KB353H37296E8301E410SH24245E14
96KB8a4SG252KB53/16" 9/32"(233)245E15
(568)5/32" 41/64"0.163" 1/4"(684)25CT7377F7
Grub(168)(172)Hexagon38SL13220F8
13G1543SL5Grub19F9(255)28G12
5/32" 1/2"44SL536E203(250)1KB7a16H3
(132)54SL536E237a49A18Bolta37KB6
59KA175/32" 11/16"3/16" 11/64"3/16" 19/64"95KC1130SC5
25KB3(140)(689)(685)(407)12SD3
5SD1687F2GrubCountersunk206F634SE5
(155)205F337A536E24828G84SF6
4SF1288KB362A750F316CK415SG2
(173)(131)3/16" 3/16"3/16" 5/16"7CK4122SG2
43A7296E7(253)(200)34SE245SL5
55A11297E13Grub14C15a22SG646SL5
23SL14202F6a4KA6132F423SL947SL5
5/32" 9/16"2G193KB1012H39(197)(404)
(?)(?)b85KC432CT2228G614F14
25D4847H13/16" 7/32"51KA33/16" 11/32"25SE5
25D56? 5/32" 3/4"(411)51KA12(402)6SG2
(155)(207)47H361KB2Grub11SG1
HexagonGrub13SC490KB331CT4(244)
12KC21G2022SE410SC24SC44SF6
 3G3 13SC724ST4(102)
 a24KB25 20SC7 b14C7
 a33KB4 42SE4  

continues



3/16" 13/32"3/16" 7/16"3/16" 7/16"3/16" 1/2"3/16" 9/16"3/16" 11/16"
(396)cont.cont.cont.cont.(239)
Grub301E6(406)(232)Hexagon92E9
301E1470F4Grub92E11211F9245E7
50KB7136F512SE12245E10(254)25SB26
29SB71CK1343/16" 1/2"59KA260KC131SL2
(667)1CK136(?)22SG63/16" 5/8"(421)
221F26KA517B6a6SL2(196)a47H1
3/16" 7/16"7KA370H30a7SL242A73/16" 3/4"
(199)a6SD4(198)a8SL27C2(195)
6C133SL315B653SL3222E2411B3
36C8(216)3D2(3068)208F31G9
85F2Hexagon136F9Taper Heada50F2212KA7
161H3a3D71G11b18B11G1212KA12
c8KA12318E1026G11a35B2a1KB12(?)
c9KA1216KA429G11a20C11CK189a36B4
50KB630KB370H4(237)12KA6(191)
12KC431KB271KA15Bolt28KA743B2
18KC795KC412KA586F251KA14a23C1
34KC1210SF1212KA1093KC1646KB1125D2
a14SA1(412)40KA423ST226SE1a19E6
30SC749F121KB8(429)293E131CK167
7SE3161H165KB3Grub54SH750KB5
59SH35SD1011KC3318E22(?)53KB11
(?)56SL318KC3712SE1323C1a95KC6
3D759SH1529KC4(420)(203)1SE11
(204)(242)37KC3a79E1Thin head7SE2
Thin Head58SL2195KC93/16" 9/16"1G1333SL5
28B1(211)29SC2(215)33SL4 
17C2Grub36SH2Bolt6KA3 
216E7302E20 15B17KA5cont.

continues



3/16" 3/4"3/16" 7/8"3/16" 1 1/16"3/16" 1 13/16"0.190" 3/16"1/4" 5/16"
cont.cont.cont.(409)cont.cont.
(207)211F1410SA6a25D43a59KC7162H10
Headless95KC325SG2206F41SH221CK153
1G2095KC6(?)28G27/32" 11/16"60SH10
3G3(694)a51F134SD4(611)1/4" 11/32"
a24KB25b23C13/16" 1 1/8"3/16" 2"19SL4(283)
a33KB4b12KA20(248)(430)20SL425SB7
(415)3/16" 15/16"Grub11KC1530SL427SE4
94KB13(255)50KB9(428)1/4" 1/4"1/4" 7/16"
3/16" 13/16"303E53KC2216E5(284)(282)
(162)10SA113/16" 1 3/16"3/16" 2 1/8"323E2199E6
31SL5(201)(417)(679)(360)13SC1
(192)3KC10Hexagona11KC15Countersunk27SE3
92E43/16" 1"93KB4(414)a12H3758SL7
245E4(399)a18SC2a25D564KA34(338)
7SE6301E113/16" 1 1/4"0.190" 3/16"a10SH2273H2
(249)a50F25(247)(230)1/4" 24 threada84CT2
3KC363KB2525SB24GrubPlug21SA5
(410)a64KB176KB275A11a16H6(358)
56SL67SE5(401)75A161/4" 5/16"Countersunk
 3/16" 1 1/16"a101F4a3B10(172)12H37
 (194)3/16" 1 19/32"55H11Gruba58SH9
3/16" 7/8"a9B7(231)33KA41G241/4" 1/2"
(214)a51F628G311KC2(340)(334)
Hexagon1G840KA629KC7Grub216E9
11B195KC8 37KC2a1G24222E25

continues


1/4" 1/2"1/4" 9/16"1/4" 5/8"1/4" 5/8"1/4" 3/41/4" 7/8"
cont.(278)cont.cont.cont.(288)
25D70Hexagon107E2(353)77F21A3
26SA120162H722F254D3a8KA143B7
26SL31SC224F168D2a9KA1415B3
4SD7a18SG225H6(?)41KC4302E5
59SL460SH725H733B241KC10a24F4
a27SG162SH2225H1129C261KC1206F8
(348)(285)a70H3094E28SE21G14
200E2a12H2575H712H4a8SE1212H43
217E266H376H8(281)25SG125H16
302E9a28KA7a8KA101A4(353)37H2
1CK20231KB7a9KA103C2454D3b53H6
29SG44SD1012KA1419E1168D232CT4
34SG148SE434KB3301E6(337)35KA2
58SL3115SF146KB13a31KC19107E546KB3
21ST210SH918KC147SA9202F330KC5
(341)56SH318KC215SC245H2539KC3
Hexagon(343)30KC6(317)a51KA2656KC7
29SG51SE2a30KC63Hexagon19SA2558KC1
1/4" 17/32"1/4" 5/8"22SA6315E317SB227SE2
(271)(286)23SA7Grub3SD429SE7
49F142A826SB2137F2(307)34SG9
161H84B28SE10(327)22SG810SH27
59SH815B423SE2Hexagon1/4" 13/16"23SH13
(329)25B223SH9b44F10(532)32SH5
77A33C623SH101/4" 3/4294E221SL4
(328)4C223SH12(287)a302E1042SL3
Hexagon19E136SH30a9B9303E7(?)
129E799E239SL2223B2 23B1
 105E14 22C2 12H6

continues



     
1/4" 7/8"1/4" 1"1/4" 1 1/8"1/4" 1 1/4"1/4" 1 7/16"5/16" 1/2"
cont.cont.cont.cont.cont.(368)
(312)(276)302E1023H392KC5Hexagon
51KA27Hexagon51F576H7(?)3E1
23SL1094F21G423SA68B157H2
(308)95F223H3a58SH6(333)67H6
Hexagon1SE376H7(?)Countersunk21ST5
b18H3a8SE1323SA68B2a60A65/16" 5/8"
b24H3(277)a58SH611C11/4" 1 1/2"(380)
15SH3Bolt1/4" 1 3/16"a50E(?)1A9
1/4" 15/16"41KC11(305)(279)45F921SH3
(334)SteppedHexagon(13908)(659)
23SL412H819E2a37H9Hexagon
(316)10SH557KA1032SH1175E5
a1A4(324)58KA101/4" 1 13/16"45H27
75A9Hexagon(345)(293)66H4
79A101/4" 1 1/16"49D9b9B324F4a67H6
301E12(272)102F1b2SE7Plug19SA27
29SB5Hexagon109F11/4" 1 3/8"220F656SH4
(344)76A51/4" 1 1/4"(?)(354)a57SH2
24B459D14(290)a50E1Hexagon5/16" 3/4"
39F22138E53B6(291)a19E2(376)
1/4" 1"(339)19D151F6a45F93D5
(304)53H54a1G22206F7(269)175E9
a9B833KA858SH6(342)Hexagona12H19
25B146KB38(289)Hexagona2SE713SA2
b18KC2129SB4a9B316SG81/4" 1 15/16"16SB4
58SL281/4" 1 1/8"215E21/4" 1 7/16"(335)5SF3
(?)(289)302E10(292)a55KC110SH4
24B1a9B351F53B520SC3 
 215E21G441B17 cont.

continues




5/16" 3/4"5/16" 1 1/85/16" 1 1/2"3/8" 5/8"3/8" 7/8"3/8" 1 1/4"
cont.cont.(385)cont.cont.cont.
(367)56KC117Hexagon(43540)(467)(433)
17F657SH6126E3Set screwCountersunkHexagon
a18F7(364)48SL1725E112H4624E2
d53H6Hexagon5/16" 1 5/8"3/8" 3/4"10SH30170E2
5/16" 15/16"70E3(371)(466)3/8" 1 1/16"93F2
(375)72E33B312H45(451)a37H13
3B4b26SC93C410SH29Hexagon32SH12
61D15/16" 1 1/4"(658)(456)a17CT33/8" 1 3/8"
30KC57(372)Hexagon161H18a25SA6(463)
58KC22E1f50F63SG16SE2Countersunk
10SA7100E35/16" 2"59SH187SE973H4
36SL40148E2(361)62SH83/8" 1 1/8"a21SA2
5/16" 1"173E3Hexagon3/8" 13/16"(435)3/8" 1 5/8"
(365)321E270E4(452)122E11(446)
Hexagon81F872E5Grub122E34Hexagon
9D10(10198)5/16" 3 5/16"16CT831F4a67H3
45F275E1(383)16CT1025SB3a41KB4
b5KB4105E13Hexagon3/8" 7/8"(449)(454)
29SH19Hexagonc4SF3(436)Grub6SC4
5/16" 1 1/8"26SC266SG316F2136E23/8" 3"
(374)(?)3/8" 5/8"17F53/8" 1 1/4"(438)
12E7106F1(?)a113F2(434)130E1
12E95/16" 1 5/16"Pin Enda16H112E3318E4
b3E3(363)8E215KA116E1318E5
a175E9Hexagon(3685)4SD12122E137/16" 1 1/8"
67H5150F1Set screw12SF2130E2(506)
12KA1134H114E513SF4318E312E12
30KC748SL4 9SG19SC225CT82

continues


7/16" 1 1/8"7/16" 2"7/16" 3 1/2"1/2" 1 3/4"5/8" 3/8"5/8" 7/8"
cont.(503)cont.cont.(644)cont.
101CT26Hexagona101CT467H3Hexagon38SL7
(?)36E371/2" 1 3/8"a16CT370H315/8" 2 1/8"
31F3101CT4(574)25CT3736SH29(641)
70F6101CT3031F225CT895/8" 7/8"38H1
7/16" 1 3/8"7/16" 2 1/16"70F5101CT4(366)a33SH1
(505)(504)25CT8057SH4Hexagon5/8" 4 1/4"
12E131A136SL136SL2036F1(648)
(502)31F13(573)1/2" 2 1/4"44F33a38H4
Hexagon7/16" 3 1/2"38H5(586)135F2a33SH10
9E1(501)1/2" 1 3/4"Hexagon140F2Size not given
 Hexagon(572)a38H555H10(564)
 36E36Hexagona33SH115KB492CT6
 31F1281F10 1SH1832ST6

The table above was first created from the list given on page 43 of the Book of Parts of "Monotype" Casting Machines Fifth edition. It was then compared with Monotype Parts Numbers (which had been created from the three Symbol Conversion Lists) and the many duplicates listed there but omitted from the original list were added, with screw sizes as shown in the various Monotype Parts Lists. Then Monotype Parts Numbers was searched for single screw/part number entries and again sizes were taken from the appropriate Monotype Parts Lists, and any one size that resulted in more than one screw was added to the table. Single entry screws were added to a new Screw Sizes table, which also lists all the screw sizes, with links to the present list where appropriate. Several anomalies were encountered whilst doing all this. One screw size might serve several different part numbers (e.g. 47, 50 and 73 are all 1/8" 1/4"); some part numbers (eg 63) were not listed as screws; some screws had no size shown (e.g. 92CT6); some screws had no part numbers (e.g. 144F3, not listed in the Symbol Conversion List, or 14C7, with only a14C7 listed in the Symbol Conversion List, so presumably too old a version of screw); some screws changed size but kept the same part number (i.e. when they became countersunk, e.g. 31). Given that, and the risks of errors creeping in when entering/amending data, the present list should not be regarded as definitive.

Go to Monotype Screw Sizes
or Lists of Monotype Information
or Alembic home page

This page was written in 2015 by David Bolton and last updated 16 July 2015.