NBI Na Bob Precision Metal Industry Limited
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As a manufacturer of precision stamped metal parts, we also specialise in the manufacture of metal snap dome contacts for use with electric circuitboards, most commonly used today in mobile telephone handsets. With over 17 years experience in this field we have built a large catalogue of over 200 readily available domes which require no need for any tooling, and are available at very short notice.

Our domes are currently being used all over the world, in many applications ranging from mobile phones, personal electronic apparatus to disposable cameras.

Circle type
Triangle type
Cross type
Square type
Oblong type

Legged

Custom order

P/N key
letters after
prefix : -

T : triangular
S : square
C : circular
B : oblong
L : legged

example.

5A-T
diameter 5mm - triangular

NEW P/N
HEIGHT
TENSION
THICKNESS
LEG DIAMETER
5A-T
0.45+0.02
200+25g
0.06mm
5B-T
0.50+0.02
475+25g
0.08mm
5C-T
0.45+0.02
310+25g
0.06mm
5E-T
0.45+0.02
270+30g
0.06mm
5F-T
0.40+0.02
315+25g
0.06mm
5G-T
0.45+0.02
350+25g
0.06mm
5AJ-T 0.40+0.03 180+30g 0.06mm  
6A-T
0.40+0.02
275+25g
0.08mm
6C-T
0.43+0.02
325+25g
0.08mm
6J-T
0.48+0.03
410+25g
0.08mm
7E-T
0.47+0.02
350_25g
0.08mm
8A-T
0.50+0.02
275+25g
0.08mm
8B-T
0.60+0.02
475+25g
0.10mm
8K-T
0.50+0.02
300+30g
0.08mm
8M-T
0.55+0.02
275+25g
0.08mm
9B-T
0.42+0.02
125+25g
0.08mm
9C-T
0.47+0.02
325+25g
0.10mm
9D-T
0.62+0.02
475+25g
0.10mm
9J-T
0.55+0.03
250+40g
0.10mm
9L-T
0.60+0.04
340+40g
0.10mm
9M-T
0.60+0.04
400+40g
0.10mm
9P-T 0.50+0.03 170+30g 0.08mm  
9Q-T 0.48+0.03 385+30g 0.10mm  
9.2A-T
0.50+0.02
375+25g
0.10mm
10A-T
0.50+0.02
375+25g
0.10mm
10B-T
0.50+0.02
375+25g
0.10mm
10C-T
0.62+0.02
525+25g
0.10mm
10D-T
0.45+0.02
175+25g
0.08mm
10R-T 0.50+0.03 275+30g 0.10mm  
10S-T 0.58+0.05 280+30g 0.10mm  
10U-T 0.80+0.03 390+30g 0.08mm  
11B-T
0.63+0.02
300+25g
0.10mm
11.5A-T
0.55+0.02
325+25g
0.10mm
120-T
0.68+0.03
330+32g
0.10mm
12.7A-T
0.63+0.02
375_25g
0.10mm
 
All our metal domes are produced using high quality Japanese stainless steel JIS spec SUS 301/ SUS 304.
Na Bob is an ISO 9001:2000 registered company