Thumbscrews（Detailed Shape：Knurling Page 2）

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Brass Knurled Knob (Low Head) NB-GB / GB-NB / GB-SR / GB-R

HIROSUGI-KEIKI

[Nominal thread (M)] 3(0.5) / 4(0.7)
[Knurled Knob]
[Material] Free-cutting brass (C3604BD), cadmium content less than 75 ppm
[Surface treatment] Micro Black (black coating over nickel base), Micro Black is only applied to the knob part
[Black nylon washer (KW)]
[Material] Nylon 6
[Color] Black
[Heat distortion temperature] 1.82 MPa...65°C
[UL Standard] UL94-HB (Materials)
Silicone rubber washer (SRW)
[Material] Silicone rubber
[Color] Translucent
[Hardness] 50°(Durometer type A), 49° (IRHD reference value)
NBR washer (RW)
[Material] NBR
[Color] Black
[Hardness] 70° (Durometer type A), 63° (IRHD reference value)

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Starting from^∗ ：	2.57 €
Min. Shipping Days ：	13 Days

*Unit price with basic configuration


Brand
Product Series
CAD
Starting from^∗
Min. Shipping Days
Detailed Shape
Screw Nominal (M)
Length L (mm)(mm)
Material
Surface Treatment
Mounting Hole Shape
Pitch(mm)
Tip Shape
Additional Shape
Strength Class (Steel)
Thread Type
Sales Unit
Application
Plastic Material

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Brand	HIROSUGI-KEIKI
Product Series	Brass Knurled Knob (Low Head) NB-GB / GB-NB / GB-SR / GB-R
CAD
Starting from^∗	2.57 € *Unit price with basic configuration
Min. Shipping Days	13 Days
Detailed Shape	Knurling
Screw Nominal (M)	3 ～ 4
Length L (mm)(mm)	6 ～ 25
Material	Brass
Surface Treatment	Black Nickel Plating
Mounting Hole Shape	Not Provided
Pitch(mm)	-
Tip Shape	Flat End
Additional Shape	Standard / Washer Integrated
Strength Class (Steel)	-
Thread Type	Metric Coarse
Sales Unit	Low Quantity (Available beginning with 1 pc.)
Application	Standard
Plastic Material	-

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Stock

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Detailed Shape
- Round Flat Head
- Flat
- Wing
- Knurling
- Urea
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Screw Nominal (M)
2.5

2.6

3

4

5

6

8

10

12
Drawing

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Length L (mm)(mm)
3

4

5

6

6.5

7

8

10

10.5

12

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25

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[6-50/1mm Unit(s)]
Drawing

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Material
Brass

Resin

Stainless Steel

Steel
Clear

Surface Treatment
- Not Provided
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Buffed Surface
- Barrel, Passivated
- Black Painted
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Mounting Hole Shape
- Negative
- Not Provided
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Pitch(mm)
0.45

0.5

0.7

0.8

1

1.25

1.5

1.75
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Tip Shape
- Flat End
- Cone Point
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Additional Shape
- Standard
- Washer Integrated
- With Retaining Ring Grooves
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Strength Class (Steel)
4.8
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Thread Type
- Metric Coarse
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Sales Unit
Low Quantity (Available beginning with 1 pc.)

Box, Pkg.
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Application
- Standard
- Heat Resistance
- Chemical Resistance
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Plastic Material
ABS

PC

POM

UF
Details

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