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Gauges and dimensional standards \ Thread gauges
Thread gauges made of gauge steel
for UNC American standard threads

UNC

Application: and compliance with minimum dimensions of the
For testing the fl ank diameter of female threads external diameter.

Illustration may be different!

Thread type UNC Thread type UNC
Tolerance class 2B Tolerance class 2B
UNC/UNF code 32730... UNC/UNF code 32730...
Ident. No. Ident. No.
No. 4-40 UNC 020 7/16”-14 095 ○
No. 5-40 UNC 025 ○ 1/2”-13 100
No. 6-32 UNC 030 ○ 9/16”-12 105 ○
No. 8-32 UNC 035 5/8”-11 110
No. 10-24 UNC 040 ○ 3/4”-10 115
No. 12-24 UNC 045 ○ 7/8”-9 120
1/4”-20 080 1”-8 125 ○
5/16”-18 085 Price/unit, €
3/8”-16 090
Prod. Gr. 3DB
Thread gauges made of gauge steel
for American UNF standard threads

UNF

Application: and compliance with minimum dimensions of the
For testing the fl ank diameter of female threads external diameter.

Illustration may be different!
Thread type UNF Thread type UNF
Tolerance class 2B Tolerance class 2B
UNC/UNF code 32730... UNC/UNF code 32730...
Ident. No. Ident. No.
No. 4-48 UNF 240 ○ 7/16”-20 315
No. 5-44 UNF 245 ○ 1/2”-20 320
No. 6-40 UNF 250 ○ 9/16”-18 325
No. 8-36 UNF 255 ○ 5/8”-18 330
No. 10-32 UNF 260 3/4”-16 335
No. 12-28 UNF 265 ○ 7/8”-14 340
1/4”-28 300 1”-12 345 ○
5/16”-24 305 Price/unit, €
3/8”-24 310
Prod. Gr. 3DB
Thread gauges made of gauge steel
for tapered NPT American pipe thread

NPT

Application:
No. 32740: For testing the fl ank diameter of female
threads and compliance with minimum dimensions Technical data: No. 32740
of the external diameter.  Material: Gauge steel
No. 32741: For testing the fl ank and core diameter  ANSI: ANSI B 1.20.1
 Thread type: National pipe tapered thread
of male threads.

No. 32741

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com
Availability subject to country specific rules and regulations. 429

1053_EN_2018_KERN[21850376]-r.indd 1053 12/17/2018 3:34:57 PM