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Unified screw, Inch screw（Surface Treatment：Black Oxide Coating）

Category page for Unified / Imperial / Whitworth Screws. This category has a lineup of screws using international standards such as UNC / UNF / Whitworth. Sizes can be selected from nominal No. 0 to 12, 3/16 to 1 inch, length 1/16 to 10 inches, with 3 kinds of materials and 11 kinds of surface processing.

[Unified / Imperial / Whitworth Threads]
Products with threads cut in imperial units instead of metric units like those of parts regularly sold in Japan. These standards are commonly used in the US and the UK. These may be used for aircraft and import/export items.
Whitworth screw products originated in England and have threads cut at 55 degrees. Although this thread type has been removed from JIS standards, it is still currently used in buildings, electrical, water, and air conditioning facilities even in Japan.

Detailed Shape

Standard
Pan Head
Flat Head
Button Head Cap

20 items

: 30; 45; 60

On Sale Till 31/03/2025

Hex Socket Head Cap Screws UNC

Hex Socket Head Cap Screws UNC【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.65-
	Special Price
Days to Ship:	Same day or more

On Sale Till 31/03/2025

Hex Socket Head Cap Screws UNF

Hex Socket Head Cap Screws UNF【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.67-
	Special Price
Days to Ship:	4 Day(s) or more

Hex Bolt, Fully Threaded, Whitworth

Hex Bolt, Fully Threaded, Whitworth【1-1,000 Pieces Per Package】

SUNCO

An inch screw with a 55° angle ridge thread, currently used in construction, electrical, water supply, and air conditioning related industry sectors in Japan.

Volume Discount

Standard Price:	SGD 0.34-
Days to Ship:	4 Day(s) or more

Hex Socket Flat Head Cap Screws UNC

Hex Socket Flat Head Cap Screws UNC【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.69-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Coarse Unified Hex Bolt, G-5

Coarse Unified Hex Bolt, G-5【1-100 Pieces Per Package】

SUNCO

[Materials] SWCH equivalent, SUS304 equivalent
[Surface treatment] None, black iron oxide coating, trivalent white, bright chromate plating, chromate plating, chromate plating.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 0.30-
	Special Price
Days to Ship:	Same day or more

Hex Socket Button Head Cap Screw UNC

Hex Socket Button Head Cap Screw UNC【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.69-
Days to Ship:	4 Day(s) or more

Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9

Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9【1-100 Pieces Per Package】

SUNCO

[Thread (inch)] 5/16 3/8 1/2 5/8 3/4
[Length L (mm)] 20 25 30 35 40 50 55 65 75 150
[Surface treatment] None, bright chromate plating, chromate plating
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
[Thread (inch)] 3/8 1/2
[Length L (mm)] 40 50 65
[Surface treatment] None, bright chromate plating, chromate plating
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.

Standard Price:	SGD 6.47-
Days to Ship:	4 Day(s) or more

Hex Socket Set Screw Cup Point UNC (Unified Coarse Threads)

Hex Socket Set Screw Cup Point UNC (Unified Coarse Threads)【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.65-
Days to Ship:	4 Day(s) or more

Hex Bolt, Partially Threaded, Whitworth

SUNCO

An inch screw with a 55° angle ridge thread, currently used in construction, electrical, water supply, and air conditioning related industry sectors in Japan.

Standard Price:	SGD 5.21-
Days to Ship:	4 Day(s) or more

Witworth Cut Bolt

Witworth Cut Bolt【1-1,000 Pieces Per Package】

SUNCO

· Detailed shape: Standard
· Thread ridge type: Whitworth coarse
· Mounting hole dimensions: None
· Materials: Equivalent to SWCH
· Tip shape: Flat end
· Application: Standard
· Thread (inch): 3/8, 1/2, 5/8, 3/4, 7/8
· Length (mm): 20, 25, 32, 38, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 100, 115, 125, 140, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450, 480
· Surface treatment: None, bright chromate plating, molten zinc plating, chromate plating
· Sales unit: Low quantity (available for purchase from 1pc), box and package.

CAD ：: 2D / 3D

Standard Price:	SGD 0.46-
Days to Ship:	4 Day(s) or more

Hex Socket Button Head Cap Screw UNF

Hex Socket Button Head Cap Screw UNF【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.84-
Days to Ship:	4 Day(s) or more

Hex Socket Set Screw Cup Point UNF (Unified Fine Threads)

Hex Socket Set Screw Cup Point UNF (Unified Fine Threads)【1-100 Pieces Per Package】

SUNCO

[Materials]SCM/SUS304 Equivalent "Surface Treatment" black oxide coating "Thread type" unified fine UNF

CAD ：: 2D / 3D

Standard Price:	SGD 0.65-
Days to Ship:	4 Day(s) or more

Bargain Hex Socket Head Cap Screw, Unified Coarse - Black Oxide Coating, Sales by Carton

Bargain Hex Socket Head Cap Screw, Unified Coarse - Black Oxide Coating, Sales by Carton【100 Pieces Per Package】

YFS

Procurement methods have been optimized to allow for a reduced price for the "Value Bolt With Hex Socket Head UNC (Unified Coarse) Cap Screw."
These cap screws are popular when looking to cut costs.

Standard Price:	SGD 808.74
Days to Ship:	8 Day(s) or more

On Sale Till 31/03/2025

Hex Socket Flat Head Cap Screws UNF

Hex Socket Flat Head Cap Screws UNF【1-100 Pieces Per Package】

SUNCO

[Materials] Equivalent to SCM SUS304
[Surface treatment] None, black iron oxide coating

CAD ：: 2D / 3D

Standard Price:	SGD 0.84-
	Special Price
Days to Ship:	Same day or more

Hex Bolts Fully Threaded JIS

Hex Bolts Fully Threaded JIS【1-300 Pieces Per Package】

SUNCO

[Detailed shape] Standard
[Thread ridge type] Whitworth Coarse
[Mounting hole dimensions] None
[Materials] Steel
[Tip shape] Flat End
[Application] Standard
[Thread (inch)] 5/16 3/8 1/2
[Length L (mm)] 16 18 20 25 30 32 35 38 45 50 55 60 65 70 75 90 100 140 150
[Surface treatment] None, trivalent white, black chromate plating, molten zinc plating, bright chromate plating, chromate plating, green chromate, black chromate, nickel plating, chrome plating, Parkerized
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.

Standard Price:	SGD 2.91-
Days to Ship:	4 Day(s) or more

Whitworth Hex Bolt - Strength Classification = 10.9

SUNCO

[Detailed shape] Standard
[Thread ridge type] Whitworth Coarse
[Mounting hole dimensions] None
[Materials] Steel
[Tip shape] Flat End
[Application] High Strength
[Strength class (steel)] 10.9
[Thread (inch)] 5/16 3/8 1/2 5/8 3/4
[Length L (mm)] 20 25 30 35 40 50 55 65 75 150
[Surface treatment] None, bright chromate plating, chromate plating
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.

Standard Price:	SGD 3.51-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Whitworth Hex Bolt

Whitworth Hex Bolt【1-100 Pieces Per Package】

SUNCO

· Detailed shape: Standard
· Thread ridge type: Whitworth coarse
· Mounting hole dimensions: Hex Socket
· Surface treatment: None
· Tip shape: Flat end
· Thread (inch): 1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 3/16
· Length (mm): 10, 12, 15, 16, 18, 20, 22, 25, 30, 32, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 125
· Material: Stainless steel
· Sales unit: Low quantity (available for purchase from 1pc), box and package.

Standard Price:	SGD 0.38-
	Special Price
Days to Ship:	Same day or more

Fine Unified Hex Bolt, G-5

Fine Unified Hex Bolt, G-5【1-200 Pieces Per Package】

SUNCO

[Materials] Equivalent to SWCH, Equivalent to SUS304
[Surface treatment] None, black iron oxide coating, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating

CAD ：: 2D / 3D

Standard Price:	SGD 0.38-
Days to Ship:	4 Day(s) or more

Value Hex Socket Set Screw, UNC (Unified Coarse), Hollow Screw, Indented Tip - Black Oxide Finish / Box

Value Hex Socket Set Screw, UNC (Unified Coarse), Hollow Screw, Indented Tip - Black Oxide Finish / Box【100-500 Pieces Per Package】

YFS

Procurement methods have been optimized to allow for a reduced price for the "Value Hex Socket Set Screw UNC (Unified Coarse), Hollow Screw, Indented Tip."
These set screws are popular when looking to cut costs.

Standard Price:	SGD 31.47-
Days to Ship:	8 Day(s) or more

Value Hex Socket Set Screw, UNF (Unified Fine), Hollow Screw, Indented Tip - Black Oxide Finish / Box

Value Hex Socket Set Screw, UNF (Unified Fine), Hollow Screw, Indented Tip - Black Oxide Finish / Box【100-500 Pieces Per Package】

YFS

Procurement methods have been optimized to allow for a reduced price for the "Value Hex Socket Set Screw UNF (Unified Fine), Hollow Screw, Indented Tip."
These set screws are popular when looking to cut costs.

Standard Price:	SGD 31.47-
Days to Ship:	8 Day(s) or more


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

	On Sale Till 31/03/2025	On Sale Till 31/03/2025			On Sale Till 31/03/2025									On Sale Till 31/03/2025			On Sale Till 31/03/2025
Brand	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	YFS	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	YFS	YFS
Product Series	Hex Socket Head Cap Screws UNC【1-100 Pieces Per Package】	Hex Socket Head Cap Screws UNF【1-100 Pieces Per Package】	Hex Bolt, Fully Threaded, Whitworth【1-1,000 Pieces Per Package】	Hex Socket Flat Head Cap Screws UNC【1-100 Pieces Per Package】	Coarse Unified Hex Bolt, G-5【1-100 Pieces Per Package】	Hex Socket Button Head Cap Screw UNC【1-100 Pieces Per Package】	Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9【1-100 Pieces Per Package】	Hex Socket Set Screw Cup Point UNC (Unified Coarse Threads)【1-100 Pieces Per Package】	Hex Bolt, Partially Threaded, Whitworth	Witworth Cut Bolt【1-1,000 Pieces Per Package】	Hex Socket Button Head Cap Screw UNF【1-100 Pieces Per Package】	Hex Socket Set Screw Cup Point UNF (Unified Fine Threads)【1-100 Pieces Per Package】	Bargain Hex Socket Head Cap Screw, Unified Coarse - Black Oxide Coating, Sales by Carton【100 Pieces Per Package】	Hex Socket Flat Head Cap Screws UNF【1-100 Pieces Per Package】	Hex Bolts Fully Threaded JIS【1-300 Pieces Per Package】	Whitworth Hex Bolt - Strength Classification = 10.9	Whitworth Hex Bolt【1-100 Pieces Per Package】	Fine Unified Hex Bolt, G-5【1-200 Pieces Per Package】	Value Hex Socket Set Screw, UNC (Unified Coarse), Hollow Screw, Indented Tip - Black Oxide Finish / Box【100-500 Pieces Per Package】	Value Hex Socket Set Screw, UNF (Unified Fine), Hollow Screw, Indented Tip - Black Oxide Finish / Box【100-500 Pieces Per Package】
CAD	2D / 3D	2D / 3D		2D / 3D	2D / 3D	2D / 3D		2D / 3D		2D / 3D	2D / 3D	2D / 3D		2D / 3D				2D / 3D
Days to Ship	Same day or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	Same day or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	8 Day(s) or more	Same day or more	4 Day(s) or more	4 Day(s) or more	Same day or more	4 Day(s) or more	8 Day(s) or more	8 Day(s) or more
Detailed Shape	Standard	Standard	Standard	Flat Head	Standard	Button Head Cap	Standard	-	Standard	Standard	Button Head Cap	-	Standard	Flat Head	Standard	Standard	Standard	Standard	-	-
Thread Type	Unified Coarse UNC	Unified Fine UNF	Wit Coarse	Unified Coarse UNC	Unified Coarse UNC	Unified Coarse UNC	Wit Coarse	Unified Coarse UNC	Wit Coarse	Wit Coarse	Unified Fine UNF	Unified Fine UNF	Unified Coarse UNC	Unified Fine UNF	Wit Coarse	Wit Coarse	Wit Coarse	Unified Fine UNF	Unified Coarse UNC	Unified Fine UNF
Thread Nominal (inch)	NO.1 ～ 9/16	NO.0 ～ 9/16	1/2 ～ 5/16	NO.10 ～ 7/16	1/2 ～ 7/16	NO.10 ～ 5/16	1/2 ～ 5/8	NO.10 ～ 7/16	1	1/2 ～ 7/8	NO.0 ～ 5/16	NO.0 ～ 7/16	NO.10	NO.10 ～ 5/16	1/2 ～ 5/16	1 ～ 5/16	1/2 ～ 7/16	1/2 ～ 7/16	NO.10 ～ 5/16	NO.10 ～ 5/8
Length L (inch)	1 ～ 10	1 ～ 7/16	-	1 ～ 7/16	1 ～ 7/8	1 ～ 7/16	-	1 ～ 7/16	-	-	1 ～ 7/16	1 ～ 7/16	3 1/2	1 ～ 7/8	-	-	-	1 ～ 5/8	1 ～ 5/16	1 ～ 5/8
Length L (mm)	-	-	8 ～ 150	-	-	-	40 ～ 100	-	85 ～ 200	20 ～ 330	-	-	-	-	16 ～ 150	20 ～ 230	10 ～ 150	-	-	-
Mounting Hole Shape	Hex Socket	Hex Socket	N/A	Hex Socket	-	Hex Socket	N/A	Hex Socket	-	-	Hex Socket	Hex Socket	Hex Socket	Hex Socket	-	N/A	Hex Socket	-	Hex Socket	Hex Socket
Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Surface Treatment	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating	Black Oxide Coating
Tip Shape	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Cup Point	Flat End	Flat End	Flat End	Cup Point	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Cup Point	Cup Point
Sales Unit	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.)	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Box / Package	Box / Package
Application	Standard	Standard	Standard	Standard	Standard	Standard	High Strength	Standard	-	Standard	Standard	Standard	Standard	Standard	Standard	High Strength	-	Standard	Standard	Standard
Strength Class (Steel)	-	-	-	-	-	-	10.9	-	-	-	-	-	-	-	-	10.9	-	-	-	-

Configure

Specification/Dimensions

Thread Type
- Unified Coarse UNC
- Unified Fine UNF
- Wit Coarse
- Whitworth Coarse Thread (Left)
Clear

Thread Nominal (inch)
NO.0

NO.1

NO.10

NO.12

NO.2

NO.3

NO.4

NO.5

NO.6

NO.8

1

1 1/2

1 1/4

1 1/8

1/2

1/4

1/8

3/4

3/8

3/16

5/8

5/16

7/8

7/16

9/16
Clear

Length L (inch)
1

1 1/2

1 1/4

1 1/8

1/2

1 3/4

1 3/8

1/4

1 5/8

1 7/8

1/8

1/16

2

2 1/2

2 1/4

2 3/4

3

3 1/2

3 1/4

3 3/4

3/4

3/8

3/16

3/32

4

4 1/2

4 1/4

4 1/8

4 3/4

5

5 1/2

5 1/4

5/8

5/16

5/32

6

6 1/2

6 1/4

7

7 1/2

7/8

7/16

8

8 1/2

9

9 1/2

9/16

10
Clear

Length L (mm)
6

8

10

12

14

15

16

18

20

22

25

30

32

35

38

40

45

50

55

60

65

70

75

80

85

90

95

100

105

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115

120

125

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135

140

145

150

155

160

165

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180

185

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225

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245

250

255

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265

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285

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305

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315

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530

540

550

560

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590

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650

700

750

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850

900

950

1000
Drawing

Clear

Mounting Hole Shape
- Hex Socket
- Cross Recessed
- Negative
- N/A
Larger Image

Clear

Material
Brass

Stainless

Steel
Clear

Surface Treatment
- N/A
- Black Oxide Coating
- Non-chrome
- Trivalent Chromate
- UniChrome Plating
- Hot Dip Galvanizing
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parker
- Stainless Coating
- Black Painted
Clear

Tip Shape
- Flat End
- Cup Point
- Other Special Shapes
Larger Image

Clear

Sales Unit
Bulk (Purchasing from 1 pc.)

Box / Package
Clear

Application
- Standard
- High Strength
Clear

Strength Class (Steel)
10.9
Clear

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Clear

CAD

- 2D
- 3D
Clear

Days to Ship

All

Same day

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

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12 Day(s) or Less
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Unified screw, Inch screw（Surface Treatment：Black Oxide Coating）

Detailed Shape

Configure

Specification/Dimensions

Thread Type

Thread Nominal (inch)

Length L (inch)

Length L (mm)

Mounting Hole Shape

Material

Surface Treatment

Tip Shape

Sales Unit

Application

Strength Class (Steel)

Narrow search by specifying Manufacturer

CAD

Days to Ship

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