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A4 Bi-metal

A4 Bi-metal

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ETA certified F120 fire resistance  ISO 9001

 

For increased high anti-corrosion and can be used outdoors, in industrial atmospheres, coastal areas and permanent moist indoor environments to obtain a minimum working life of 50 years, JOKER produced an A4 stainless steel shank welded with carbon steel sharp drilling point, and because Joker A4 self-tapping concrete screw with hi-low triple thread offers maximum pull out loading and efficient mounting.

 

A4-316 Austenitic Stainless concrete screw to be assessed by ETA by the end of 2022 in sizes 6, 8 and 10.

SIZE
Embedment depth in the concrete (mm)
DRILL HOLE DIAMETER (mm)
WRENCH SIZE(mm)
7.5X45
40
6
10
7.5X60
40 / 55
6
10
7.5X80
40 / 55
6
10
7.5X100
40 / 55
6
10
7.5X120
40 / 55
6
10
10.5X65
50 / 60
8
13
10.5X75
50 / 60
8
13
10.5X90
50 / 60
8
13
10.5X110
50 / 60
8
13
10.5X130
50 / 60
8
13
12.5X75
70
10
15
12.5X90
70 / 85
10
15
12.5X100
70 / 85
10
15
12.5X120
70 / 85
10
15
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