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INSERT IDENTIFICATION THREADING
SYSTEM

Insert Identification System

16 E R M 1.50 ISO 2M IC808
2 4 8
1 3 567

1. Insert Size IC 6. Thread Standard
I (mm) 5/32" 60 Partial Profile 60º
06 3/16" 55 Partial Profile 55º
08 1/4" ISO ISO Metric
11 3/8" UN American UN
16 1/2" W Whitworth
22 5/8"
27 BSPT British BSPT
RND Round DIN 405
I TR Trapeze DIN 103
ACME ACME
IC STACME Stub ACME
ABUT American Buttress
2. Application UNJ UNJ
E External NPT NPT
I Internal API RD API Round
UE U-type, External BUT API Buttress Casing
UI U-type, Internal API API
UEI U-type, External and Internal H90 H-90
EL Extreme Line Casing
U-type Regular Type MJ ISO 5855

3. Hand of Tool 7. No. of Teeth (Optional)
R Right-hand 2M 2 teeth
L Left-hand 3M 3 teeth
RL Right- and Left-hand
8. Grade
4. Type IC1007
B IC908
M IC808
IC508
 IC250
IC228
IC50M
IC806

Peripherally ground & chipformer
Press to size with a chipformer
No indication regular type

5. Pitch

Full Profile (value by number)

0.35-9.0 mm

72-2 TPI

Partial Profile (range by letter)

mm TPI

A 0.5-1.5 48-16

AG 0.5-3.0 48-8

G 1.75-3.0 14-8

N 3.5-5.0 7-5

Q 5.5-6.0 4.5-4

U 5.5-9.0 4.5-2.75

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