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Brass Thread Reducers  Brass Enlargers Thread Converters

Brass Thread Reducers Enlargers Converters

BRASS REDUCERS, ENLARGERS & CONVERTERS
These are used for threaded holes on machines or equipment housing which are too large or too small for the necessary glands.
Technical Details
Material

Threads available
Brass, Nickel Plated

Pg & Metric

Pg Thread  & Metric Thread Reducers
Size Cat. No. Standard Pack (Pieces) External 
Thread
Internal
Thread
Thread Length (mm)

Pg 9 - Pg 7
Pg 11 - Pg 9
Pg 13.5 - Pg 9
Pg 13.5 - Pg 11
Pg 16 - Pg 13.5
Pg 21 - Pg 16
Pg 29 - Pg 21
Pg 36 - Pg 29

M 16 - M 12
M 20 - M 12
M 20 - M 16
M 25 - M 16
M 25 - M 20
M 32 - M 25
M 40 - M 25
M 40 - M 32
M 50 - M 40

BBRP 9/7
BBRP 11/9
BBRP 13.5/9
BRP 13.5/11
BBRP 16/13.5
BBRP 21/16
BBRP 29/21
BBRP 36/29

BBRM 16/12
BBRM 20/12
BBRM 20/16
BBRM 25/16
BBRM 25/20
BBRM 32/25
BBRM 40/25
BBRM 40/32
BBRM 50/40

50
50
50
50
25
25
10
10

50
25
25
10
10
10
10
10
10

Pg9
Pg11
Pg13.5
Pg13.5
Pg16
Pg21
Pg29
Pg36

M16 x 1.5
M20 x 1.5
M20 x 1.5
M25 x 1.5
M25 x 1.5
M32 x 1.5
M40 x 1.5
M40 x 1.5
M50 x 1.5

Pg7
Pg9
Pg11
Pg11
Pg13.5
Pg16
Pg21
Pg29

M12 x 1.5
M12 x 1.5
M16 x 1.5
M16 x 1.5
M20 x 1.5
M25 x 1.5
M25 x 1.5
M32 x 1.5
M40 x 1.5

7
8
8
9
9
11.3
12
14

8
8
9
9
10
11
11
11
12

Brass Pg Thread  & Metric Thread Enlargers  converters Thread Adapters    

Size Cat. No. Standard Pack (Pieces) External 
Thread
Internal
Thread
Thread Length (mm)

Pg7 - Pg9 
Pg9 - Pg11 
Pg11 - Pg13.5 
Pg13.5 - Pg16 
Pg16 - Pg21 
Pg21 - Pg29 
Pg29 - Pg36

M12 - M16 
M16 - M20 
M16 - M25 
M20 - M25 
M25 - M32 
M25 - M40
M32 - M40

BBEP7/9 
BBEP9/11 
BBEP11/13.5 
BBEP13.5/16 
BBEP16/21 
BBEP21/29
BBEP29/36

BBEM12/16 
BBEM16/20 
BBEM16/25
BBEM20/25 
BBEM25/32 
BBEM25/40 
BBEM32/40

50
50
50
50
25
25
10

50
25
25
10
10
10
10

Pg7 
Pg9 
Pg11 
Pg13.5 
Pg16 
Pg21 
Pg29

M12 
M16 
M16 
M20 
M25 
M25 
M32

Pg9 
Pg11 
Pg13.5 
Pg16 
Pg21 
Pg29 
Pg36

M16 
M20 
M25 
M25 
M32 
M40
M40




6.5 
6.5 

8



6.5
6.5 

8
9

Thread Converters    
Size Cat. No. Standard Pack (Pieces) External 
Thread
Internal
Thread
Thread Length (mm)
Pg16 - M25 
M20 - Pg9 
M20 - Pg13.5 
ET3/4”-M16
BBCP16/M25 
BBCM20/P9 
BBCM20/P13.5 
BBC3/4”- M16
50
10
10
10
Pg16 
M20 
M20 
ET3/4”
M25 
Pg9 
Pg13.5 
M16



7

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