1.TEK(SDS) SCREW :
Self-drilling screws for the building and construction industries. For those application fixig to steel, timber and plasterboard to steel.
Self-drilling screws intended for drilling and tapping into layered or unlayered steel with a minimum total thickness of 0.9mm shall be type
ASD, BSD or CSD TYPE ASD and BSD screw have spaced threads and type CSD screws have threads of UNC machine screw diameter-pitch
combination with a 60 degree basic thread form.
The drill points for ASD, BSD and CSD shall be No 2, No. 3 and No. 4 designed to accommodate different panel thicknesses.
I .IFI standard : There are Type BSD and Type CSD screw types shall conform to those specified for Type B and Type C tapping screws, respectively.
As specified in ASME B18.6.4 or SAE J478.
Self-drilling screws for the building and construction industries. For those application fixig to steel, timber and plasterboard to steel.
Self-drilling screws intended for drilling and tapping into layered or unlayered steel with a minimum total thickness of 0.9mm shall be type
ASD, BSD or CSD TYPE ASD and BSD screw have spaced threads and type CSD screws have threads of UNC machine screw diameter-pitch
combination with a 60 degree basic thread form.
The drill points for ASD, BSD and CSD shall be No 2, No. 3 and No. 4 designed to accommodate different panel thicknesses.
I .IFI standard : There are Type BSD and Type CSD screw types shall conform to those specified for Type B and Type C tapping screws, respectively.
As specified in ASME B18.6.4 or SAE J478.
HEX WASHER HEAD SELF DRILL-ZINC PLATED
|
SIZE
|
THREAD PITCH | DRIVE SIZE | DRILL POINT SIZE | OPTIMUM DRIVING SPEED | RANGE OF FASTENING |
|
6X3/8
|
20 | 1/4" | #2 | 2500 rpm | .035 - .090 |
|
6X1/2
|
20 | 1/4" | #2 | 2500 rpm | .035 - .090 |
|
6X3/4
|
20 | 1/4" | #2 | 2500 rpm | .035 - .090 |
|
8X1/2
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X1/2 SLOTTED
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X5/8
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X3/4
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X1
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X1-1/4
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X1-1/2
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
8X2
|
18 | 1/4" | #2 | 2500 rpm | .035 - .100 |
|
10X1/2
|
16 | 5/16" | #2 | 2500 rpm | .035 - .110 |
|
10X5/8
|
16 | 5/16" | #2 | 2500 rpm | .035 - .110 |
|
10X3/4
|
16 | 5/16" | #2 | 2500 rpm | .110 - .175 |
|
10X1
|
16 | 5/16" | #2 | 2500 rpm | .110 - .175 |
|
10X1-1/4
|
16 | 5/16" | #2 | 2500 rpm | .110 - .175 |
|
10X1-1/2
|
16 | 5/16" | #2 | 2500 rpm | .110 - .175 |
|
10X2
|
16 | 5/16" | #2 | 2500 rpm | .110 - .175 |
|
12X3/4
|
14 | 5/16" | #3 | 2500 rpm | .110 - .210 |
|
12X1
|
14 | 5/16" | #3 | 2500 rpm | .110 - .210 |
|
12X1-1/4
|
14 | 5/16" | #3 | 2000 rpm | .110 - .210 |
|
12X1-1/2
|
14 | 5/16" | #3 | 2000 rpm | .110 - .210 |
|
12X2
|
14 | 5/16" | #3 | 2000 rpm | .110 - .210 |
|
12X3
|
14 | 5/16" | #3 | 2000 rpm | .110 - .210 |
|
14X3/4
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
|
14X1-1/4
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
|
14X1-1/2
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
|
14X2
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
|
14X3
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
|
14X4
|
14 | 3/8" | #3 | 1500 rpm | .110 - .250 |
HEX WASHER HEAD SELF DRILL # 4 POINT-ZINC PLATED
|
SIZE
|
THREAD PITCH | DRIVE SIZE | DRILL POINT SIZE | OPTIMUM DRIVING SPEED | RANGE OF FASTENING |
|
12X7/8
|
24 | 5/16" | #4 | 1000 rpm |
.210 - .345
|
HEX WASHER HEAD SELF DRILL # 5 POINT-ZINC PLATED
|
SIZE
|
THREAD PITCH | DRIVE SIZE | DRILL POINT SIZE | OPTIMUM DRIVING SPEED | RANGE OF FASTENING |
|
12X1-1/4
|
24 | 5/16" | #5 | 1000 rpm |
.250 - .500
|