Ultrasonic Inserts

Basic Part Number Thread Size Knurl TPI A B D Recommended Hole Data
E* F* G Min
SW256-1 2-56
50 .141 .115 .123 .118 .123 .145
SW440-1 4-40
40 .172 .135 .157 .153 .159 .165
SW632-1 6-32
40 .219 .150 .203 .199 .206 .188
SW832-1 8-32
35 .250 .185 .230 .226 .234 .218
SW1024-1 10-24
35 .297 .225 .272 .267 .277 .255
SW1032-1 10-32
35 .297 .225 .272 .267 .277 .255
SW25020-1 1/4"-20
25 .375 .300 .354 .349 .363 .335
SW25028-1 1/4"-28
25 .375 .300 .354 .349 .363 .335
SW31218-1 5/16"-18
25 .468 .335 .438 .431 .448 .367
SW31224-1 5/16"-24
25 .468 .335 .438 .431 .448 .367
SW37516-1 3/8"-16
20 .563 .375 .531 .523 .540 .406
SW37524-1 3/8"-24
20 .563 .375 .531 .523 .540 .406

Basic Part Number Thread Size Knurl TPI A C D Recommended Hole Data
E* F* G Min
SW256-2 2-56 50 .141 .188 .112 .107 .123 .218
SW440-2 4-40 40 .172 .219 .146 .141 .159 .250
SW632-2 6-32 40 .219 .250 .190 .185 .206 .281
SW832-2 8-32 35 .250 .312 .213 .208 .234 .343
SW1024-2 10-24 35 .297 .375 .251 .246 .277 .406
SW1032-2 10-32 35 .297 .375 .251 .246 .277 .406
SW25020-2 1/4"-20 25 .375 .5000 .332 .321 .363 .531
SW25028-2 1/4"-28 25 .375 .500 .332 .321 .363 .531
SW31218-2 5/16"-18 25 .468 .563 .406 .401 .448 .593
SW31224-2 5/16"-24 25 .468 .563 .406 .401 .448 .593
SW37516-2 3/8"-16 20 .563 .625 .493 .488 .540 .656
SW37524-2 3/8"-24 20 .563 .625 .493 .488 .540 .656
*Plus or minus .001
Also Available in Stainless Steel Example:
SW832-1SS -- SW832-2SS

Notes:
Thread Spec. Per MIL-S-7742. Brass per ASTM-B-16. Dimensional Limits +.005, unless specified.
Class 3A/4H screw, must pass with finger torque, but basic go gauge may stop at last thread. (Applies to Stainless Steel Only)
**When installing inserts into a boss, the minimum diameter "H" of the boss should be at least 1.5 times the diameter of the insert.

Ultra Sonic Inserts

APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
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