Universal screw with round head

Universal screw with round head

 

KILLICH

sample

Cross (Pozidriv) Combi Star (Torx)
102xxxx-2 102xxxx-2 102xxxx-2T
  /products/hexagon-head-wood-screw-blue-zinc-571-steel  /products/hexagon-head-wood-screw-blue-zinc-571-steel /products/hexagon-head-wood-screw-blue-zinc-571-steel
 
The nominal diameter
 d1
2,5 3 3,5 4 4,5 5 6
p 1,2 1,4 1,6 1,8 2,1 2,3 2,7
d2 4,75-5,25 5,65-6,35 6,55-7,45 7,55-8,45 8,55-9,45 9,55-10,45 11,45-12,55
d3 1,4-1,5 1,8-1,9 2,0-2,1 2,4-2,6 2,6-2,8 2,8-3,0 3,5-3,7
k max 2,10 2,30 2,60 3,00 3,35 3,75 4,45
b L-2 L-3 L-3 L-4 L-4 L-5 L-6
          L70-100 b=60
v (max.misalignment) 0,12 0,14 0,18 0,18 0,18 0,18 0,18
Tightening
cross

shape

(Pozidriv)
Nr. of Tip 1 1 2 2 2 2 3
m 2,80 3,00 4,00 4,40 4,60 5,30 6,60
t max 1,99 2,11 2,16 2,66 3,21 3,42 3,55
t min 1,70 1,85 1,75 2,16 2,71 2,92 3,09
Tightening
star

shape

(Torx)
Nr. of Tip 10 10 10 20 20 25 30
t max 1,05 1,10 1,10 1,15 1,40 1,60 1,90
t min 0,75 0,80 0,80 0,85 1,10 1,20 1,50
Tightening
shape

Combi
Nr. of Tip 1 1 2 2 2 2 3
n max 0,85 1,00 1,20 1,51 1,51 1,51 1,90
n min 0,80 0,86 1,06 1,26 1,26 1,26 1,60
t max 0,65 0,69 0,73 0,91 1,14 1,14 1,70
t min 0,50 0,53 0,56 0,68 0,89 0,89 1,45
Material OCEL AISI 1018 C=0,16-0,19 Mn 0,70-0,95
Diameter (wire to produce) 1,82 2,15 2,49 2,84 3,19 3,49 4,35
Quality of material (N/mm2) 400-500
Max.torque 1,0 1,2 1,8 2,5 3,8 4,7 9,5
Hardness of surface 48-54 HRc, 490-590 HV
Hardness of the shaft cca 40 HRc, 390 HV
Tolerance of length L<10-0,75 L12-17-0,9 L20-30-1,05 L35-50-1,25 L<60-1,50
Nr. die of cross head 1Z-20 1Z-30 2Z-48 2Z-60 2Z-40 2Z-75 3Z-20
Rec. torque (Nm) 0,9 1,1 1,7 2,4 3,5 4,5 8,5

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