CAUTION: Unable to Roll Parts With Cross Drill Holes or Milled Flats. Call for Information on parts with: thin wall, short threads or *high Heat-Treat. Now offering *HOT Rolling, on hard materials.
We process many other thread sizes including Metric Threads. We can roll standard or J-Form threads per your print requirements. Fillet Rolling services & Special thread dies available.
Blank Diameter and Chamfer Sizes for One Pass Grind before Thread Roll
SIZE SERIES MACHINED BLANK DIA. CHAMFER FLAT
PLUS .004 MINUS .010
0 80-NF .053 .040
1 64-NC .064 .045
72-NF .065 .050
2 56-NC .076 .055
64-NF .077 .060
3 48-NC .087 .065
56-NF .089 .070
4 40-NC .097 .070
48-NF .100 .080
5 40-NC .110 .085
44-NF .112 .090
6 32-NC .119 .085
40-NF .123 .100
8 32-NC .145 .115
36-NF .147 .120
10 24-NC .164 .125
32-NF .171 .140
24-NC .190 .145
12 28-NF .195 .155
32-NEF .197 .165
20-NC .219 .170
28-NF .228 .190
¼ 32-NEF .231 .200
40-NEF .240 .210
56-NS .240 .220
18-NC .278 .225
5/16 24-NF .287 .245
32-NEF .294 .265
16-NC .336 .275
3/8 24-NF .350 .310
32-NEF .356 .325
14-NC .393 .320
7/16 20-NF .407 .355
24-NS .412 .370
13-NC .452 .375
1/2 20-NF .469 .420
40-NS .490 .460
9/16 18-NF .530 .470
11-NC .567 .475
5/8 18-NF .590 .535
24-NEF .600 .555
10-NC .687 .590
3/4 16-NF .711 .650
18-NS .715 .660
20-NEF .719 .670
9-NC .804 .695
7/8 14-NF .830 .760
16-N .836 .775
8-NC .920 .795
1 12-NF .947 .865
14-NS .955 .885
18-NS .965 .910
1-1/16 12-N 1.010 .925
18 NEF 1.028 .970
Blanking Dimensions on Additional Sizes available, EMAIL your drawings