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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.

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Detailed Shape	Standard Pan Head Flat Head Button Head Cap
Brand	ESCO (0) MARUEMU WORKS (1) NABEYA BI-TECH (0) SPS/UNBRAKO (0) SUNCO (11) TONG (0) YFS (0)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

12 items

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: 30; 45; 60

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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

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)
Standard	Wit Coarse	1 ～ 7/16	1 ～ 7/8	8 ～ 300	N/A	Brass ～ Steel	N/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Parker / Stainless Coating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	Standard	-

From: ₹ 4.80
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

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.

Volume Discount

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)
Standard	Wit Coarse	1/2 ～ 7/16	-	10 ～ 150	Hex Socket	Stainless ～ Steel	N/A / Black Oxide Coating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	-	-

From: ₹ 29.33
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

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.

Volume Discount

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)
Standard	Wit Coarse	1 ～ 7/8	-	40 ～ 300	N/A	Stainless ～ Steel	N/A / Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	-	-

From: ₹ 140.00
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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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.

Volume Discount

CAD ：: 2D / 3D

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)
Standard	Wit Coarse	1/2 ～ 7/8	-	20 ～ 345	N/A	Steel	Black Oxide Coating / UniChrome Plating / Hot Dip Galvanizing / Stainless Coating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	Standard	-

From: ₹ 13.39
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Whitworth Hex Bolt - Strength Classification = 10.9【1-120 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.

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)
Standard	Wit Coarse	1 ～ 5/16	-	20 ～ 230	N/A	Steel	Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	High Strength	10.9

From: ₹ 125.24
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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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.

Volume Discount

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)
Standard	Wit Coarse	1/2 ～ 5/16	-	16 ～ 150	-	Steel	Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Chrome Plating / Parker	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	Standard	-

From: ₹ 10.45
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

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

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)
Pan Head	Wit Coarse	1/2 ～ 5/16	-	6 ～ 100	Negative	Brass ～ Steel	Trivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	-	-

From: ₹ 3.27
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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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

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)
Standard	Wit Coarse	3/8	-	40 ～ 50	N/A	Stainless	N/A	Flat End	-	Standard	-

From: ₹ 44.00
Days to Ship: 7 Day(s) or more

7 Day(s) or more

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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

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)
Flat Head	Wit Coarse	1/2 ～ 5/16	-	10 ～ 150	Negative	Brass ～ Steel	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating	Flat End	Bulk (Purchasing from 1 pc.) ～ Box / Package	-	-

From: ₹ 4.00
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Head-Cut Rough Edge Left Screw Whitworth

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

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)
Standard	Wit Coarse	1/2 ～ 3/8	-	130 ～ 600	N/A	Stainless ～ Steel	N/A / UniChrome Plating	Flat End	Box / Package	Standard	-

From: ₹ 66.40
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Meter-Cut Left Thread Whitworth

SUNCO

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

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)
Standard	Wit Coarse	1 1/2 ～ 5/8	-	1000	N/A	Steel	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing	-	Box / Package	-	-

From: ₹ 176.02
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Inch Cutter Flat End Left-Thread Whitworth

SUNCO

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

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)
Standard	Wit Coarse	1/2	-	30	N/A	Stainless	N/A	Flat End	Box / Package	-	-

From: ₹ 279.15
Days to Ship: 6 Day(s) or more

6 Day(s) or more


Brand
Product Series
CAD
From
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)

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	MARUEMU WORKS	SUNCO	SUNCO	SUNCO	SUNCO
Product Series	Hex Bolt, Fully Threaded, Whitworth【1-1,000 Pieces Per Package】	Whitworth Hex Bolt【1-100 Pieces Per Package】	Hex Bolt, Partially Threaded, Whitworth【1-25 Pieces Per Package】	Witworth Cut Bolt【1-1,000 Pieces Per Package】	Whitworth Hex Bolt - Strength Classification = 10.9【1-120 Pieces Per Package】	Hex Bolts Fully Threaded JIS【1-300 Pieces Per Package】	Whitworth Slotted Round Screw【1-1,200 Pieces Per Package】	Hex Bolts Partial Thread Screw【100 Pieces Per Package】	Whitworth Slotted Flat Screw【1-1,100 Pieces Per Package】	Head-Cut Rough Edge Left Screw Whitworth	Meter-Cut Left Thread Whitworth	Inch Cutter Flat End Left-Thread Whitworth
CAD				2D / 3D
From	₹ 15.99	₹ 29.33	₹ 140.00	₹ 31.87	₹ 192.00	₹ 31.55	₹ 13.02	₹ 4,400.00	₹ 21.11	₹ 66.40	₹ 176.02	₹ 279.15
Days to Ship	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	7 Day(s) or more	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	6 Day(s) or more
Detailed Shape	Standard	Standard	Standard	Standard	Standard	Standard	Pan Head	Standard	Flat 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
Thread Nominal (inch)	1 ～ 7/16	1/2 ～ 7/16	1 ～ 7/8	1/2 ～ 7/8	1 ～ 5/16	1/2 ～ 5/16	1/2 ～ 5/16	3/8	1/2 ～ 5/16	1/2 ～ 3/8	1 1/2 ～ 5/8	1/2
Length L (inch)	1 ～ 7/8	-	-	-	-	-	-	-	-	-	-	-
Length L (mm)	8 ～ 300	10 ～ 150	40 ～ 300	20 ～ 345	20 ～ 230	16 ～ 150	6 ～ 100	40 ～ 50	10 ～ 150	130 ～ 600	1000	30
Mounting Hole Shape	N/A	Hex Socket	N/A	N/A	N/A	-	Negative	N/A	Negative	N/A	N/A	N/A
Material	Brass ～ Steel	Stainless ～ Steel	Stainless ～ Steel	Steel	Steel	Steel	Brass ～ Steel	Stainless	Brass ～ Steel	Stainless ～ Steel	Steel	Stainless
Surface Treatment	N/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Parker / Stainless Coating	N/A / Black Oxide Coating	N/A / Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	Black Oxide Coating / UniChrome Plating / Hot Dip Galvanizing / Stainless Coating	Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating	Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Chrome Plating / Parker	Trivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating	N/A	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating	N/A / UniChrome Plating	N/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing	N/A
Tip Shape	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	Box / Package	Box / Package	Box / Package
Application	Standard	-	-	Standard	High Strength	Standard	-	Standard	-	Standard	-	-
Strength Class (Steel)	-	-	-	-	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

110

115

120

125

130

135

140

145

150

160

165

170

180

190

195

200

210

220

225

230

240

250

255

260

270

280

285

290

300

315

330

345

600

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