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Data Table

Order No. Order by articlenumber Type Order by parameter d1 3B Order by parameter Thread type d1 Order by parameter d2 2A Order by parameter Thread type d2 Order by parameter l1 Order by parameter l2 Order by parameter l3 ±,030 Order by parameter l4 c'bore depth Order by parameter l5 Order by parameter Inst. tool ref. TR1700 Order by parameter Inst. tap drill size* Order by parameter Inst. c'sink hole size +,010 -,000 Order by parameter Inst. thread tap size class 2B Order by parameter Inst. thread tap min. depth Order by parameter Rem. drill size Order by parameter Rem. drill depth Order by parameter
TR1671.84290 SL 2-56 UNC ,166 UNC ,24 ,18 ,10 C'Sink ,13 .0830 ,134 ,166 8-32 ,24 #33 1/16
TR1671.84291 SL 4-40 UNC ,194 UNF ,31 ,22 ,12 C'Sink ,17 .0840 ,161 ,194 10-32 ,28 #29 3/32
TR1671.84292 SL 6-32 UNC ,220 UNF ,39 ,22 ,12 C'Sink ,21 .0850 ,187 ,220 12-28 ,28 #21 3/32
TR1671.84294 SL 8-32 UNC ,255 UNF ,43 ,24 ,13 C'Sink ,25 .0860 ,228 ,255 1/4-28 ,30 #8 3/32

Technical & Application

Material

Inserts - A303 CRES.
Keys - 302 CRES.
Passivated. Dry film lubrication on self-locking inserts only.

Technical Notes

All dimensions in inches.
Internal threads: to SAE AS8879.
General tolerances -
+/- 0,010 unless specified.
Tap drill hole tolerances -
0,234 to 0,500 = +0,004/-0,001
0,500 and over = +0,005/-0,001
SL = Self-Locking type, deliberate deformity in thread produces self-affect once installed (see technical diagram).

Tips

Order installation tool separately, as identified by "Inst. Tool ref." in table.

Important Notes

Four locking keys on internal threads 5/16 and over. Two locking keys on internal threads smaller than 5/16.
Installation (Inst.) drill size, counter sink, thread tap and thread depth as specified in table.
Removal (Rem.) drill size and drill depth as specified in table.
Perform to standards: MIL-I-45914A

CAD & Data Sheets

Product Datasheets

TR1671 Blind Threaded Insert - Mini - Inch 319 kB pdf
Miniature 3 MB pdf
Threaded Inserts 27 MB pdf

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