What is a Delta PT screw?
The DELTA PT® screw is the result of many years of experience in direct fastening into thermoplastics. The program can simulate and predict how the screw will perform in a given plastic. The program is based on VDI 2230, and it allows clamp load oriented designs.
What is PT screw?
The PT® screw features a 30° thread angle which reduces radial stresses, provides increased thread depth, lowers installation torque, and improves material flow due to high axial component. The profiled thread root provides maximum resistance to relaxation and improved retention of clamp load. …
Can you put screws in plastic?
You can drive machine screws into plastic, but first you must cut threads into the material. For this you need a tap the size of the fastener and a tap wrench. Drill a pilot hole in the material. The length of the hole should be equal to that of the screw.
Can self-tapping screws go into steel?
These screws can fasten metal to metal, wood to metal, and work well with light, low-density materials.
Can self-tapping screws be reused?
Understanding types and materials of which they are applied is vital – for example if you are using self-tapping screws for aluminium, they don’t need pre-drilling and are easily removed without any damage caused to the metal. And, actually, they can be reused in the same material.
What kind of material is used for EJOT Delta Pt P screw?
For the EJOT DELTA PT ® P screw the high performance plastic PPA GF50 is used as screw material. This enables a self-tapping screwing into standard thermoplastics. Thus a light and electrically or thermally insulating screw connection can be realised.
What is the EJOT Delta calc prognosis programme?
The EJOT DELTA CALC ®, a prognosis programme based on the mechanical parameters of many thousand applications and test assemblies, is a valuable support for the pre-dimensioning of direct assembly into thermoplastic.
Which is the precondition for a reliable EJOT screw joint?
Boss design for EJOT PT® Screws. The precondition for a reliable screw joint is the functional design of the components. Based on laboratory trials with models, the following design engineering recommendations were established (see chart on the right). Deviation from these recommendations might be necessary in practice.
Can you use VDI 2230 with EJOT software?
This software combines the guidelines of VDI 2230 with extensive experience of EJOT in direct fastening. Unfortunately you currently have no authorization to use “CAD & more”. Unfortunately, this data can not be provided to you without the consent of the confidentiality agreement.
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