Hexagon Nut And Screw Head Covers
PART NUMBER
Black
*1639575
*1639576
*1639577
1639578
1639579
1639580
Material: Low Density Polyethylene
RoHS Directive 2002/95/EC compliant
White
*1639581
*1639582
*1639583
1639585
1639586
1639587
Nominal
Thread Size
M4
M5
M6
M8
M10
M12
Across Flats
Hexagon
6.9
7.9
9.8
13.0
16.7
18.7
H
8.7
10.7
13.0
15.0
19.5
21.5
RoHS
Protects and gives a neat finish to exposed metal hexagon nuts and screw heads
Quick and simple to install
This part has a circular external form and a hexagonal internal form and is suitable for Hexagon Head screws and nuts. Parts marked
* will also fit the appropriate size Metric Cheese Head Screw (Chapter 6)
Material Properties
Mechanical/Physical Properties
Density
Water Absorption
Tensile Strength, Yield
Elongation at Yield
Tensile Modulus
Units
g/cm
3
%
MPa
%
GPa
Value
0.924
0.01
11.0
14.5
0.260
Electrical Properties
Electrical Resistivity
Surface Resistivity
Dielectric Constant (1 MHz)
Units
ohm-cm
ohm
-
Value
≥1.00e+15
1.00e+14
2.30
Thermal Properties
Melting Point
Short Term Minimum Working Temperature
Short Term Maximum Working Temperature
Flammability
Oxygen Index
Units
°C
°C
°C
UL94
%
Value
111
-40
55
HB
17.0
Above information is for guidance only and should not be used to establish specifications or as the basis of a design
Hinged Screw Covers
PART NUMBER
Black
1639588
1639589
1639590
Material: Polypropylene
Available in matt finish only
RoHS Directive 2002/95/EC compliant
Screw Size
Green
1639598
1639599
1639600
M3/M4 & N°4
M4/M5 & N°8/N°10
M6 & 1/4"
A
11.5
13.7
17.4
B
5.0
5.5
6.5
White
1639591
1639592
1639593
Red
1639594
1639595
1639597
All-in-one base and cover
Cap snaps into base to give a neat and decorative finish
RoHS
Material Properties
Mechanical/Physical Properties
Density
Hardness
Tensile Strength, Yield
Elongation at Yield
Flexural Modulus
Units
g/cm
3
Shore D
MPa
%
GPa
Value
0.9
71
35.9
490
1.39
Thermal Properties
Deflection Temperature at 0.45MPa
Vicat Softening Temperature
Units
°C
°C
Value
104
150
Above information is for guidance only and should not be used to establish specifications or as the basis of a design
Pop-On Screw Covers
PART NUMBER
Black
1639601
1639603
1639604
Material: Polypropylene
White
1639605
1639606
1639607
Red
1639608
1639609
1639610
Green
1639611
1639612
1639613
M3/M4
M4/M5
M6
12.7
16.0
17.8
5.1
6.5
6.6
Screw Size
A
B
Can also be used with No 4, 6, 8, 10 and
s
- 20 screws
RoHS Directive 2002/95/EC compliant
RoHS
Allow approximately 0.50 extra for
assembled height
These parts must be used with Pop-On
Screw Cover Bases - see below
Pop-On Screw Cover Bases
To Fit Pop-on Screw
Covers
1639601 to 1639611
1639601 to 1639611
1639601 to 1639611
1639603 to 1639612
1639603 to 1639612
1639603 to 1639612
1639604 to 1639613
1639604 to 1639613
PART NUMBER
1639615
1639616
1639617
1639618
1639619
1639620
1639621
1639622
Screw Size
M3 & No4 Pan
M3.5 & No6 Pan
M3/M4 & No4/No8 CSK
M4 & No8 PAN
M5 & No10 PAN
M4/M5 & No8/No10 CSK
M6 & 1/4" PAN
M6 & 1/4" CSK
A
2.9
2.9
2.9
3.2
3.2
3.2
3.2
3.3
B
10.5
10.5
10.5
12.7
12.8
12.8
15.7
15.7
C
3.0
3.8
3.8
4.5
5.0
5.0
6.2
6.2
D
7.0
7.0
-
9.3
9.3
-
12.4
-
Material: Polypropylene
Colour: Natural
RoHS Directive 2002/95/EC
compliant
Pop-on screw covers and bases may be used with:- flat head nails, countersunk screws, self
tapping screws, rivets, drive screws, machine screws, washer faced screws and other types
of fasteners
Cover locks firmly onto base to provide a neat and decorative finish
RoHS
Material Properties
Mechanical/Physical Properties
Density
Hardness
Tensile Strength, Yield
Elongation at Yield
Flexural Modulus
Units
g/cm
3
Shore D
MPa
%
GPa
Value
0.9
71
35.9
490
1.39
Thermal Properties
Deflection Temperature at 0.45MPa
Vicat Softening Temperature
Units
°C
°C
Value
104
150
Above information is for guidance only and should not be used to establish specifications or as the basis of a design
Metric Knurled Thumb Nuts
PART
NUMBER
1639623
1639624
1639625
1639627
1639628
1639629
1639630
Thread
Size
M3 x .5
M4 x .7
M5 x .8
M6 x 1.0
M4 x .7
M5 x .8
M6 x 1.0
PART
NUMBER
1639631
1639632
1639633
1639634
1639635
1639636
Thread
Size
M4 x .7
M5 x .8
M6 x 1.0
M4 x .7
M5 x .8
M6 x 1.0
A
12.0
12.0
16.0
16.0
16.0
16.0
16.0
B
7.0
7.0
9.5
9.5
9.5
9.5
9.5
H
7.0
7.0
8.0
8.0
8.0
8.0
8.0
L
3.5
3.5
4.5
4.5
4.5
4.5
4.5
Form
A
A
A
A
B
B
B
A
16.0
16.0
16.0
16.0
16.0
16.0
B
10.0
10.0
10.0
10.0
10.0
10.0
H
6.0
6.0
6.0
6.0
6.0
6.0
L
4.5
4.5
4.5
4.5
4.5
4.5
Form
C
C
C
D
D
D
Material: Nylon 66
Colour: White
RoHS Directive 2002/95/EC
compliant
RoHS
Thread Size
M3
M4
M5
M6
N/A = Test data not available
1Nm = 8.851lbf-in
Suggested Max. Tightening Torque
(Nm) for Nylon 6,6 screws as per DIN3481X
0.10
0.25
0.50
0.80
Above information is for guidance only and should not be used to establish specifications or as the basis of a design
Material Properties
Values measured at 23°C @ 50% RH
Mechanical/Physical Properties
Density
Water Absorption
Tensile Strength at Break
Elongation at Yield
Tensile Modulus
Units
g/cm
3
%
MPa
%
GPa
Value
1.14
1.3
55
30
1.50
Electrical Properties
Electrical Resistivity
Surface Resistivity
Dielectric Strength
Units
ohm-cm
ohm
kV/mm
Value
≥1.00e+14
0.10e+14
26
Thermal Properties
Melting Point
Short Term Minimum Working Temperature
Short Term Maximum Working Temperature
Flammability
Oxygen Index
Units
°C
°C
°C
UL94
%
Value
263
-40
110
V2
26.5
Above information is for guidance only and should not be used to establish specifications or as the basis of a design
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