Value Through Solutions®

EJOT DELTA PT® DS

EJOT DELTA PT® DS
New Technology for Thermosets and Composites

Delta PT® DS

Benefits

Reduced boss diameter and height requirements

High resistance to pull-out forces

Provides repeat assembly and "insert removal"

Minimized clamp load loss

Improved vibration resistance

Features

Delta PT CalcMulti-Compound angled thread

Forming flutes along body of screw

Profiled thread root for material containment

 


Delta PT DS

 

 

Some designs require thermosets, which pose special demands on the direct assembly because of their hardness and brittleness.

In response to these challenging conditions, the DELTA PT® DS screw was developed. Special grooves that help to cut the female thread have been added to the thread geometry of the established DELTA PT®. These grooves are especially distinct at the tip of the thread and taper off towards the screw head. This thread-forming zone enables a low tightening torque while maintaining a high stripping torque.

Advantages of DELTA PT® DS compared to screws with machine milled cutting edge

Smaller hole depth is possible because less chip space is required compared to screws with a traditional cutting edge.

Cost-saving potential through standardization – only one screw for thermosets and thermoplastics.

Removal of costly inserts is possible due to the multiple reusability feature provided by the thread design.

More comprehensive production range regarding screw diameter and length.

Larger thread engagement area for the same insertion depth.

dh = Hole- Ø = 0.83 - 0.90 x d1

d1 = Nominal Ø of the screw

dc = Counterbore diameter = d1 + 0.2 mm

tc = Chip space = 0.8 - 1.2 x d1

Boss Design Guide for DELTA PT® DS

Boss Design Guide for Delta PT DS

 


Additional Family Products

 

Delta PT®
New Thin Thread Technology for Thermoplastics

EJOT DELTA PT® S
Technology for Thermosets and Composites


    Data Sheet(s)    

Delta PT Brochure