Monotype Screw Sizes

The table below lists many of the different sizes of screws used in the Monotype Composition caster, Super caster and Keyboard. It is based on all the screws up to part no. 700 as listed in the Symbol Conversion Lists with sizes taken from the Book of Parts lists, although the latter lists have not yet been checked to be sure that every screw listed there has been entered. The table shows the screw size as diameter and then length, in inches. If only one screw has been identified in that size, the table shows the symbol no. and the part no., plus the type of head, if recorded (if unrecorded, it is probably cheesehead). If there is more than one screw in a given size, there is a link to the appropriate place in the Monotype Interchangeable Screws table.

SizeSymbolPartHead
1/16" 3/32"see list  
3/32" 7/64"see list  
3/32" 5/32"see list  
3/32" 11/64"see list  
3/32" 3/16"18KC633Countersunk
3/32" 7/32"see list  
3/32" 1/4"see list  
3/32" 19/64"see list  
3/32" 5/16"see list  
1/8" 1/8"see list  
1/8" 5/32"see list  
1/8" 11/64"see list  
1/8" 3/16"see list  
1/8" 13/64"see list  
1/8" 7/32"see list  
1/8" 15/64"see list  
1/8" 1/4"see list  
1/8" 17/64"see list  
1/8" 5/16"see list  
1/8" 3/8"see list  
1/8" 13/32"52KB882Hexagon
1/8" 7/16"see list  
1/8" 9/16"see list  
1/8" 5/8"see list  
1/8" 41/64"a18KC4657 
1/8" 3/4"see list  
4BA 5/8"see list  
5/32" 1/8"see list  
5/32" 0.135"see list  
5/32" 0.15"44F46160 
5/32" 0.16"77KB55180Grub
5/32" 3/16"see list  
5/32" 7/32"see list  
5/32" 1/4"see list  
5/32" 9/32"23KA25174 
5/32" 5/16"see list  
5/32" 11/32"see list  
5/32" 13/32"see list  
5/32" 3/8"see list  
5/32" 7/16"see list  
5/32" 1/2"see list  
5/32" 9/16"see list  
5/32" 5/8"see list  
5/32" 41/64"see list  
5/32" 11/16"see list  
? 5/32" 3/4"see list  
5/32" 7/8"see list  
5/32" 1"1CK104560 
5/32" 1 1/4"10SF9541Countersunk
3BA 7/16"51KA16111 
0.163" 1/4"see list  
2BA 5/16"51KA8678 
3/16" 5/32"175E3210Grub
3/16" 11/64"see list  
3/16" 3/16"see list  
3/16" 7/32"see list  
3/16" 15/64"202F8398Grub
3/16" 1/4"see list  
3/16" 9/32"see list  
3/16" 19/64"see list  
3/16" 5/16"see list  
3/16" 11/32"see list  
3/16" 3/8"see list  
3/16" 13/32"see list  
3/16" 7/16"see list  
3/16" 1/2"see list  
3/16" 9/16"see list  
3/16" 5/8"see list  
3/16" 21/32"27KB7683Hexagon
3/16" 11/16"see list  
3/16" 3/4"see list  
3/16" 13/16"see list  
3/16" 7/8"see list  
3/16" 15/16"see list  
3/16" 1"see list  
3/16" 1 1/16"see list  
3/16" 1 3/32"25SB22236 
3/16" 1 1/8"see list  
3/16" 1 5/32"12KA15193 
3/16" 1 3/16"see list  
3/16" 1 1/4"see list  
3/16" 1 11/32"15SG1405 
3/16" 1 7/16"4SD5413 
3/16" 1 9/16"12SE9408Hexagon
3/16" 1 19/32"see list  
3/16" 1 13/16"see list  
3/16" 2"see list  
3/16" 2 1/8"see list  
3/16" 2 7/16"1CK166425 
0.1894" 1 1/2"60A6424Countersunk
0.190" 3/16"see list  
7/32" 3/16"11KC28624 
7/32" 11/16"see list  
1/4" 5/32"25D23296 
1/4" 1/4"see list  
1/4" 24 threadsee list  
1/4" 5/16"see list  
1/4" 11/32"see list  
1/4" 7/16"see list  
1/4" 1/2"see list  
1/4" 17/32"see list  
1/4" 9/16"see list  
1/4" 5/8"see list  
1/4" 3/4"see list  
1/4" 13/16"see list  
1/4" 7/8"see list  
1/4" 15/16"see list  
1/4" 1"see list  
1/4" 1 1/16"see list  
1/4" 1 1/8"see list  
1/4" 1 3/16"see list  
1/4" 1 1/4"see list  
1/4" 1 5/16"13SC2322 
1/4" 1 3/8"see list  
1/4" 1 7/16"see list  
1/4" 1 1/2"see list  
1/4" 1 11/16"23SE3346Hexagon
1/4" 1 13/16"see list  
1/4" 1 15/16"see list  
1/4" 2 1/8"41KC9295 
1/4" 2 7/8"a17SA2336 
1/4" 3 5/8"a20SC2351 
5/16" 7/32"47H2655Plug
5/16" 1/4"5SF21389 
5/16" 1/2"see list  
5/16" 5/8"see list  
5/16" 3/4"see list  
5/16" 13/16"32CT18395Grub
5/16" 15/16"see list  
5/16" 1"see list  
5/16" 1 1/8"see list  
5/16" 1 1/4"see list  
5/16" 1 5/16"see list  
5/16" 1 1/2"see list  
5/16" 1 5/8"see list  
5/16" 1 3/4"9D8394Hexagon
5/16" 1 7/8"d50F6377Hexagon
5/16" 1 15/16"3C13671 
5/16" 2"see list  
5/16" 2 5/16"1SC1382Hexagon
5/16" 2 1/2"3C5370 
5/16" 3 5/16"see list  
5/16" 4 1/8"a6SG3392Hexagon
3/8" 5/8"see list  
3/8" 3/4"see list  
3/8" 13/16"see list  
3/8" 7/8"see list  
3/8" 1 1/16"see list  
3/8" 1 1/8"see list  
3/8" 1 1/4"see list  
3/8" 1 5/16"18SL1439 
3/8" 1 3/8"see list  
3/8" 1 5/8"see list  
3/8" 1 3/4"175E13465 
3/8" 1 7/8"116E1437Bolt
3/8" 2 7/16"a3KA6462Hexagon
3/8" 2 27/32"a49F2431Hexagon
3/8" 2 7/8"25SB5455 
3/8" 3"see list  
3/8" 3 11/16"6SE3457 
7/16" 1 1/8"see list  
7/16" 1 3/8"see list  
7/16" 1 3/4"36E140511Hexagon
7/16" 2"see list  
7/16" 2 1/16"see list  
7/16" 3 5/16"25SB8508Hexagon
7/16" 3 1/2"see list  
7/16" 5 3/4"7SA7509Hexagon
1/2" 1"9SC6581 
1/2" 1 1/4"9SC5583 
1/2" 1 3/8"see list  
1/2" 1 3/4"see list  
1/2" 2 1/4"see list  
1/2" 3"a12SD1624Hexagon
1/2" 3 1/2"36E34571Bolt
5/8" 3/8"see list  
5/8" 7/8"see list  
5/8" 1"38SL9646 
5/8" 1 3/8"a38SL9647 
5/8" 2 1/8"see list  
5/8" 3 7/8"38H4643 
5/8" 4 1/4"see list  


Go to List of Interchangeable Monotype Screws
Go to List of Monotype Information
Go to Alembic home page

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