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Unified screw, Inch screw（Thread Type：Wit Coarse）

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

13 items

: 30; 45; 60

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 0.20-
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

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-
Days to Ship:	Same day or more

Hex Bolt, Partially Threaded, Whitworth

Hex Bolt, Partially Threaded, Whitworth【1-25 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.

Standard Price:	SGD 1.49-
Days to Ship:	4 Day(s) or more

Hex Bolts Partial Thread Screw

Hex Bolts Partial Thread Screw【100 Pieces Per Package】

MARUEMU WORKS

[Thread ridge type] Whitworth Coarse
[Thread (inch)] 3/8
[Length L or l (mm)] 40 45 50

Standard Price:	SGD 80.58-
Days to Ship:	6 Day(s) or more

Whitworth Slotted Flat Screw

Whitworth Slotted Flat Screw【1-1,100 Pieces Per Package】

SUNCO

[Materials] Steel, Stainless steel Bras
[Surface treatment] None, Trivalent chromate non-chrome plating white, Trivalent white, Bright chromate plating, Chromate plating, Nickel plating, chrome plating

Volume Discount

Standard Price:	SGD 0.32-
Days to Ship:	4 Day(s) or more

Whitworth Hex Bolt - Strength Classification = 10.9

Whitworth Hex Bolt - Strength Classification = 10.9【1-350 Pieces Per Package】

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

Inch Cutter Flat End Left-Thread Whitworth

Inch Cutter Flat End Left-Thread Whitworth【1-150 Pieces Per Package】

SUNCO

[Nominal Thread Size (Inch)]Selectable from 3/8, 1/2 and 5/8.

Standard Price:	SGD 3.39-
Days to Ship:	7 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 0.43-
Days to Ship:	4 Day(s) or more

Whitworth Slotted Round Screw

Whitworth Slotted Round Screw【1-1,200 Pieces Per Package】

SUNCO

[Materials] Steel, Stainless steel Bras
[Surface treatment] None, Trivalent chromate non-chrome plating white, Trivalent white, Bright chromate plating, Chromate plating, Nickel plating

Volume Discount

Standard Price:	SGD 0.14-
Days to Ship:	4 Day(s) 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 0.42-
Days to Ship:	4 Day(s) or more

Head-Cut Rough Edge Left Screw Whitworth

Head-Cut Rough Edge Left Screw Whitworth【1-600 Pieces Per Package】

SUNCO

[Detailed shape] Standard
[Thread ridge type] Whitworth Coarse (Left)
[Mounting hole dimensions] None
[Materials] Steel
[Tip shape] Rough Edge
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc)
[Application] Standard
[Thread (inch)] 3/8 1/2
[Length L (mm)] 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 300 350 400 450 500 550 600
[Surface treatment] None, bright chromate plating

Standard Price:	SGD 0.74-
Days to Ship:	4 Day(s) or more

Meter-Cut Left Thread Whitworth

SUNCO

[Nominal (inch)] 1/2 5/16 3/4 3/8 1/4 1 1/2 5/8

Standard Price:	SGD 2.44-
Days to Ship:	7 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)


Brand	SUNCO	SUNCO	SUNCO	SUNCO	MARUEMU WORKS	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO
Product Series	Hex Bolt, Fully Threaded, Whitworth【1-1,000 Pieces Per Package】	Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9【1-100 Pieces Per Package】	Whitworth Hex Bolt【1-100 Pieces Per Package】	Hex Bolt, Partially Threaded, Whitworth【1-25 Pieces Per Package】	Hex Bolts Partial Thread Screw【100 Pieces Per Package】	Whitworth Slotted Flat Screw【1-1,100 Pieces Per Package】	Whitworth Hex Bolt - Strength Classification = 10.9【1-350 Pieces Per Package】	Inch Cutter Flat End Left-Thread Whitworth【1-150 Pieces Per Package】	Witworth Cut Bolt【1-1,000 Pieces Per Package】	Whitworth Slotted Round Screw【1-1,200 Pieces Per Package】	Hex Bolts Fully Threaded JIS【1-300 Pieces Per Package】	Head-Cut Rough Edge Left Screw Whitworth【1-600 Pieces Per Package】	Meter-Cut Left Thread Whitworth
CAD									2D / 3D
Days to Ship	4 Day(s) or more	4 Day(s) or more	Same day or more	4 Day(s) or more	6 Day(s) or more	4 Day(s) or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	7 Day(s) or more
Detailed Shape	Standard	Standard	Standard	Standard	Standard	Flat Head	Standard	Standard	Standard	Pan Head	Standard	Standard	Standard
Thread Type	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse	Wit Coarse
Thread Nominal (inch)	1 ～ 7/16	1/2 ～ 5/8	1/2 ～ 7/16	1 ～ 7/8	3/8	1/2 ～ 5/16	1 ～ 5/16	1/2 ～ 5/8	1/2 ～ 7/8	1/2 ～ 5/16	1/2 ～ 5/16	1/2 ～ 5/16	1 1/2 ～ 5/8
Length L (inch)	1 ～ 7/8	-	-	-	-	-	-	-	-	-	-	-	-
Length L (mm)	8 ～ 300	40 ～ 100	10 ～ 150	40 ～ 300	40 ～ 50	10 ～ 150	20 ～ 230	30 ～ 950	20 ～ 345	6 ～ 100	16 ～ 150	20 ～ 950	1000
Mounting Hole Shape	N/A	N/A	Hex Socket	N/A	N/A	Negative	N/A	N/A	N/A	Negative	-	N/A	N/A
Material	Brass ～ Steel	Steel	Stainless ～ Steel	Stainless ～ Steel	Stainless	Brass ～ Steel	Steel	Stainless	Steel	Brass ～ Steel	Steel	Stainless ～ Steel	Steel
Surface Treatment	N/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Parker / Stainless Coating	Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	N/A / Black Oxide Coating	N/A / Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	N/A	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating	Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	N/A	Black Oxide Coating / UniChrome Plating / Hot Dip Galvanizing / Stainless Coating	Trivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating	Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Chrome Plating / Parker	N/A / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing
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	-
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.) ～ Box / Package	Bulk (Purchasing from 1 pc.) ～ Box / Package	Box / Package	Box / Package
Application	Standard	High Strength	-	-	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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175

180

185

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210

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225

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240

245

250

255

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265

270

275

280

285

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300

305

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315

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325

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335

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345

350

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500

510

520

530

540

550

560

570

580

590

600

650

700

750

800

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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CAD

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Clear

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All

Same day

4 Day(s) or Less

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6 Day(s) or Less

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Unified screw, Inch screw（Thread Type：Wit Coarse）

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)

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