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

Normal

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
4A-TL
0.38+0.02
180+25g
0.06mm
0.80x0.80mm
5D-TL
0.43+0.02
175+25g
0.06mm
2.6x0.80mm
5I-TL
0.44+0.02
175+25g
0.06mm
1.8x0.80mm
5M-TL
0.45+0.02
210+30g
0.06mm
1.8x0.80mm
5N-TL
0.43+0.02
210+30g
0.06mm
2.6x0.80mm
6B-TL
0.45+0.02
325+25g
0.08mm
1.4x0.80mm
6E-TL
0.46+0.02
325+25g
0.08mm
0.80x0.80mm
6G-TL
0.46+0.02
200+25g
0.06mm
0.80x0.80mm
6N-TL
0.42+0.03
230+20g
0.06mm
0.60x0.80mm
6O-TL
0.42+0.03
240+20g
0.06mm
0.60x0.80mm
6P-TL
0.42+0.03
205+25g
0.06mm
0.60x0.80mm
6Q-TL 0.45+0.03 310+20g 0.08mm 0.60x0.80mm
6R-TL 0.46+0.05 230+30g 0.06mm 3.00x0.90mm
7I-TL
0.50+0.03
325+30g
0.08mm
1.3x0.90mm
8C-TL
`0.60+0.02
475+25g
0.10mm
2.5x1.00mm
8D-TL
0.60+0.02
475+25g
0.10mm
1.7x1.00mm
8E-TL
0.60+0.02
500+25g
0.10mm
1.7x1.00mm
8F-TL
0.46+0.02
225+25g
0.08mm
1.25x1.00mm
8G-TL
0.55+0.02
375+25g
0.08mm
1.70x1.00mm
8I-TL
0.72+0.02
575+25g
0.10mm
2.0x0.80mm
8J-TL
0.60+0.02
525_25g
0.10mm
2.5x1.00mm
8L-TL
0.46+0.02
100+30g
0.08mm
4.0x1.00mm
8N-TL
0.55+0.03
220+30g
0.08mm
1.7x1.00mm
8O-TL
0.60+0.03
475+30g
0.10mm
1.5x1.00mm
8P-TL 0.60+0.03 475+30g 0.10mm 2.50x1.00mm
8S-TL 0.57+0.03 530+30g 0.10mm 2.00x1.00mm
8T-TL 0.55+0.03 220+30g 0.10mm 1.70x0.80mm
9F-TL
0.60+0.02
325+25g
0.10mm

1.7x1.15mm

9I-TL
0.68+0.02
580+25g
0.10mm
1.7x0.90mm
9K-TL
0.61+0.03
550+30g
0.10mm
0.8x0.90mm
10F-TL
0.60+0.02
475+25g
0.10mm
1.3x1.00mm
11A-TL
0.60+0.025
450+25g
0.10mm
1.60x1.44mm
12G-TL
0.65+0.02
325+25g
0.10mm
2.0x1.50mm
12R-TL
0.65+0.03
400+30g
0.10mm
1.6x1.50mm
15A-TL
0.64+0.03
270+30g
0.08mm
1.6x1.50mm
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