十字槽沉头自钻自攻螺钉 H型十字槽
BN 1005
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标准
~DIN 7504 P
特点
| Headform |
Headform
Countersunk with ribs
|
| Drive |
Drive
Cross recess H (Phillips)
|
| Thread |
Thread
fully threaded
|
| Material |
Material
Steel
|
| Material execution |
Material execution
case-hardened
|
| Surface |
Surface
zinc plated blue
|
| Hardness |
Hardness
560 HV
|
Assembly notice
A. Wings
B. Timber
C. Metal substructure
1. The wings behind the drill head, ream up a clearance hole in the timber, which is of larger diameter than the screw thread.
2. The wings are designed to shear off as they strike the substructure.
3. The screw drills its own core hole into the substructure and forms a thread so that the timber will be fastened to the substructure. The ribs under the head trimming the drilled hole for a clean countersink.
Illustration assembly
警告
ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found on our web page: Notes on use