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Thumbscrews（Mounting Hole Shape：Negative）

Thumbscrews
Bolts with vertical and diagonal grooves (knurled) in the knob of the head. They can be fastened by hand without using a tool.
Some heads have cross holes or slots.

17 items

: 30; 45; 60

Days to Ship	All Same day 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less 11 Day(s) or Less

Slotted Knurled Screw

Slotted Knurled Screw【1-500 Pieces Per Package】

SUNCO

The knob section of the head is fluted, making it decorative and easy to turn by hand. It also contains a groove so that it can be turned with a flat head screw driver.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 1.86-
Days to Ship:	Same day or more

Brass Knurled Knob (Slotted) NB-A-SR/NB-A-R

HIROSUGI-KEIKI

[Nominal thread (M)] 2.6(0.45) / 3(0.5) / 4(0.7) / 5(0.8) / 6(1.0)
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)

Standard Price:	SGD 1.32-
Days to Ship:	14 Day(s) or more

Brass (Low Cadmium Material) ECO-BS Slotted Knurled Screw

Brass (Low Cadmium Material) ECO-BS Slotted Knurled Screw【1-100 Pieces Per Package】

SUNCO

The flute incorporated into the knob of the head makes it an ornamental screw that can be easily turned manually without slipping. In addition, there is a groove for rotating the flathead screwdriver.

CAD ：: 2D / 3D

Standard Price:	SGD 0.69-
Days to Ship:	Same day or more

Brass Knurled Knob (Slotted/ Flanged) NB-BB/BB-NB/BB-SR/BB-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)

Standard Price:	SGD 2.86-
Days to Ship:	11 Day(s) or more

Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-F-SR/NB-F-R

HIROSUGI-KEIKI

[Nominal thread (M)] 3(0.5) / 4(0.7) / 5(0.8) / 6(1.0)
[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)

Standard Price:	SGD 1.66-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted) NB-A/A-N/AC/AC-N

HIROSUGI-KEIKI

◎ Knurled Knob
[Material] Free-cutting brass (C3604BD), cadmium content less than 75 ppm
[Surface treatment] Nickel plating (Ni) / Chrome plating (buff polishing)
◎ Nylon washer
[Material] Nylon 66
[Color] Translucent
[Heat distortion temperature]1.82 MPa...75°C
[UL Standard] UL94V-2 (Materials)

Standard Price:	SGD 2.65-
Days to Ship:	11 Day(s) or more

PC (Polycarbonate)/Slotted Resin Knurled

NIPPON CHEMICAL SCREW

[Detailed shape] Knurl
[Mounting hole dimensions] Slotted
[Basic shape] Standard (Round)
[Materials] Resin
[Surface treatment](Details) none
[Thread ridge type] Metric coarse
[Tip shape] Flat End
[Additional shapes] Standard
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc)
[Application] Standard, Resin
[Materials] PC
[Nominal Thread (M)] 3 4
[Length L or l (mm)] 6 8 10 12
[Pitch (mm)] 0.5 0.7

Standard Price:	SGD 1.40-
Days to Ship:	4 Day(s) or more

Brass Knurled Knob (Slotted) NB-AB/AB-NB/AB-SR/AB-R

HIROSUGI-KEIKI

Standard Price:	SGD 1.83-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted/Flanged) NB-B-SR/NB-B-R

HIROSUGI-KEIKI

[Nominal thread (M)] 2.6(0.45) / 3(0.5) / 4(0.7) / 5(0.8) / 6(1.0)
[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)

Standard Price:	SGD 1.55-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted/Flanged) NB-BC-SR/NB-BC-R

HIROSUGI-KEIKI

Standard Price:	SGD 2.74-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-E-SR/NB-E-R

HIROSUGI-KEIKI

Standard Price:	SGD 1.69-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-FB/FB-NB/FB-SR/FB-R

HIROSUGI-KEIKI

Standard Price:	SGD 2.59-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted / Built-In Washer) / NB-B-N

HIROSUGI-KEIKI

Knurled knob
[Material] Free-cutting brass (C3604BD), cadmium content less than 75 ppm
[Processing] Nickel plating (Ni)
Nylon washer
[Material] Nylon 66
[Color] Translucent
[Heat deformation temperature] 1.82 MPa, 75°C
[UL standard] UL94V-2 (material)

Standard Price:	SGD 2.48
Days to Ship:	21 Day(s) or more

Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-F/F-N/FC/FC-N

HIROSUGI-KEIKI

Standard Price:	SGD 1.27
Days to Ship:	21 Day(s) or more

Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-EC-SR/NB-EC-R

HIROSUGI-KEIKI

Standard Price:	SGD 3.00-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-EB/EB-NB/EB-SR/EB-R

HIROSUGI-KEIKI

Standard Price:	SGD 2.91-
Days to Ship:	14 Day(s) or more

Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-FC-SR/NB-FC-R

HIROSUGI-KEIKI

Standard Price:	SGD 2.91-
Days to Ship:	14 Day(s) or more


Brand
Product Series
CAD
Days to Ship
Nominal of Thread (M)
Length L(mm)
Detailed Shape
Pitch(mm)
Mounting Hole Shape
Material
Surface Treatment
Tip Shape
Thread Type
Additional Shape
Sales Unit
Nominal of Thread (inch)
Application
Strength Class (Steel)
Plastic Material


Brand	SUNCO	HIROSUGI-KEIKI	SUNCO	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	NIPPON CHEMICAL SCREW	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI
Product Series	Slotted Knurled Screw【1-500 Pieces Per Package】	Brass Knurled Knob (Slotted) NB-A-SR/NB-A-R	Brass (Low Cadmium Material) ECO-BS Slotted Knurled Screw【1-100 Pieces Per Package】	Brass Knurled Knob (Slotted/ Flanged) NB-BB/BB-NB/BB-SR/BB-R	Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-F-SR/NB-F-R	Brass Knurled Knob (Slotted) NB-A/A-N/AC/AC-N	PC (Polycarbonate)/Slotted Resin Knurled	Brass Knurled Knob (Slotted) NB-AB/AB-NB/AB-SR/AB-R	Brass Knurled Knob (Slotted/Flanged) NB-B-SR/NB-B-R	Brass Knurled Knob (Slotted/Flanged) NB-BC-SR/NB-BC-R	Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-E-SR/NB-E-R	Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-FB/FB-NB/FB-SR/FB-R	Brass Knurled Knob (Slotted / Built-In Washer) / NB-B-N	Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-F/F-N/FC/FC-N	Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-EC-SR/NB-EC-R	Brass Knurled Knob (Slotted / Flanged / Narrow Body) NB-EB/EB-NB/EB-SR/EB-R	Brass Knurled Knob (Slotted / Stepped / Narrow Body) NB-FC-SR/NB-FC-R
CAD	2D / 3D		2D / 3D
Days to Ship	Same day or more	14 Day(s) or more	Same day or more	11 Day(s) or more	14 Day(s) or more	11 Day(s) or more	4 Day(s) or more	14 Day(s) or more	14 Day(s) or more	14 Day(s) or more	14 Day(s) or more	14 Day(s) or more	21 Day(s) or more	21 Day(s) or more	14 Day(s) or more	14 Day(s) or more	14 Day(s) or more
Nominal of Thread (M)	3 ～ 6	2.6 ～ 6	3 ～ 6	3 ～ 4	3 ～ 6	2.6 ～ 6	3 ～ 4	3 ～ 4	2.6 ～ 6	2.6 ～ 6	3 ～ 6	3 ～ 4	4	3	3 ～ 6	3 ～ 4	3 ～ 6
Length L(mm)	5 ～ 40	4 ～ 35	6 ～ 50	6 ～ 30	10 ～ 50	4 ～ 35	6 ～ 12	6 ～ 30	4 ～ 35	4 ～ 35	10 ～ 50	10 ～ 30	15	12	10 ～ 50	10 ～ 35	10 ～ 50
Detailed Shape	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling	Knurling
Pitch(mm)	0.5 ～ 1	-	0.5 ～ 1	-	-	-	0.5 ～ 0.7	-	-	-	-	-	0.7	0.5	-	-	-
Mounting Hole Shape	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative	Negative
Material	Stainless Steel	Brass	Brass	Brass	Brass	Brass	Resin	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Surface Treatment	Black Painted ～ Not Provided	Nickel Plating	Chrome Plating ～ Not Provided	Black Nickel Plating	Nickel Plating	Chromate Plating	Not Provided	Black Nickel Plating	Nickel Plating	Chromate Plating	Nickel Plating	Black Nickel Plating	Nickel Plating	Nickel Plating	Chromate Plating	Black Nickel Plating	Chrome Plating
Tip Shape	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End
Thread Type	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse	Metric Coarse
Additional Shape	Standard	Washer Integrated	Standard	Standard / Washer Integrated	Washer Integrated	Washer Integrated	Standard	Standard / Washer Integrated	Washer Integrated	Washer Integrated	Washer Integrated	Standard / Washer Integrated	Standard	Standard	Washer Integrated	Standard / Washer Integrated	Washer Integrated
Sales Unit	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Application	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard
Strength Class (Steel)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Plastic Material	-	-	-	-	-	-	PC	-	-	-	-	-	-	-	-	-	-

Configure

Specification/Dimensions

Nominal of Thread (M)
2.5

2.6

3

4

5

6

8

10

12
Drawing

Clear

Length L(mm)
3

4

5

6

6.5

7

7.5

8

10

10.5

12

12.5

13

14

15

16

18

20

21

22

23

25

26

27

28

30

32

33

34

35

36

37

40

43

44

45

50

55

60

65

67

70

75

80

85

90

95

100

105

110

115

120

125

130

135

140

145

150

160

170

180

190

200
Drawing

Clear

Detailed Shape
- Standard
- Round Flat Head
- Flat
- Wing
- Knurling
- Urea
Larger Image

Clear

Pitch(mm)
0.45

0.5

0.7

0.8

1

1.25

1.5

1.75
Clear

Mounting Hole Shape
- Hex Socket
- Negative
- Not Provided
Larger Image

Clear

Material
Brass

Resin

Stainless Steel

Steel
Clear

Surface Treatment
Barrel, Passivated

Black Nickel Plating

Black Oxide

Black Painted

Bright Chrome Plating

Buffed

Chromate Plating

Chrome Plating

Electroless Nickel Plating

Nickel Plating

Not Provided

Trivalent Chromate
Clear