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MACHINE SCREWS

CSK Phillips Head Machine Screws
Truss Phillips Head Machine Screws
Slotted Head Machine Screws
Slotted Cheese Head Screw
Slotted Raised CSK Head Screw
Pan Phillips Head Machine Screws
Truss Phillips Machine Screws

Mild Steel Machine Screws are available in CSK, Cheese, Raised CSK, Pan and Mushroom (Truss) heads in both Slotted and Phillips (Cross recessed) types.

 

These screws generally conform to property class 4.8 and are available in self colour and in zinc coated (blue passivation and yellow passivation) finishes. Screws with other finishes like zinc coating with trivalent finish, Nickle plating, Cadmium plating and Black phosphating are arranged against order.

 

Screws in property class 8.8 are also arranged against order.

 

SIZE RANGE and Specification

 

Slotted CSK head Machine Screws  

  • 1/8” x 1/4” to 1” x 6” in BSW threads to BS 450-1958.
  • M2 x 5mm to M24 x 150mm in metric threads to IS 1365-2005, DIN 963A and ISO 2009.
  • 10BA x 1/4” to 0BA x 3” in BA threads.

 

Slotted Cheese head Machine Screws

  • 1/8” x 1/4” to 3/8” x 6” in BSW threads to BS 450-1958.
  • M2 x 5mm to M12 x 150mm in metric threads to IS 1366-2002, DIN 84 and ISO 1207.
  • 10BA x 1/4” to 0BA x 3” in BA threads

 

Slotted Round Head Machine Screws

  • 1/8” x 1/4” to 3/8” x 2” in BSW threads to BS 450-1958.
  • M3 x 6mm to M6 x 50mm in metric threads

 

Slotted Raised CSK head Machine Screws

  • M3.5 x 12mm to M10 x 50mm to IS 8911- 2005 ISO 2010 : 1994

Slotted Mushroom (Truss) head Machine Screws

  • 1/4” x 1/2” to 6”
  • M6 x 12mm to 100mm to IS 8822-1978

 Pan Phillips (Cross Recessed) head Machine Screws

  • M2 x 4mm to M6 x 50mm to DIN 7985 and ISO 7045

 CSK Phillips (Cross Recessed) head Machine Screws

  • M2 x 4mm to M6 x 50mm to DIN 965A and ISO 7046

 Truss Phillips (Cross Recessed) head Machine Screws

  •  M3 x 6mm to M6 x 50mm
CSK Slotted head Machine Screw
Slotted Round Head Machine Screw
Slotted Mushroom Head Screw
CSK Phillips Head Machine Screw

IMPORTANT DIMENSIONS OF DIFFERENT TYPES OF SCREWS AS SPECIFIED IN THE RELEVANT SPECIFICATIONS

SLOTTED CSK HEAD MACHINE SCREWS

MM THREADS TO IS 1365-2005 (DIN 963A) (ISO 2009 : 1994) WITH THREADS TO IS 14962 (PART2) 2002 (ISO 965-2 : 1998)

All dimensions are in mm

SIZE

M 2

M 2.5

M 3

M 3.5

M 4

M 5

M 6

M 8

M 10

Dia of head (d2) MIN

MAX

3.50

4.40

5.20

6.94

8.04

8.94

10.87

15.37

17.78

3.80

4.70

5.50

7.30

8.40

9.30

11.30

15.80

18.30

DEPTH OF HEAD (k) MAX

1.20

1.50

1.65

2.35

2.70

2.70

3.30

4.65

5

Slot Depth (t) Min

Max

0.40

0.50

0.60

0.90

1.00

1.10

1.20

1.80

2.00

0.60

0.75

0.85

1.20

1.30

1.40

1.60

2.30

2.60

Slot Width (n) Min

Max

0.56

0.66

0.86

1.06

1.26

1.26

1.66

2.06

2.56

0.70

0.80

1.00

1.20

1.51

1.51

1.91

2.31

2.81

Dia at thread  (d1) Min

Max

1.886

2.380

2.874

3.354

3.838

4.826

5.794

7.760

9.732

1.981

2.480

2.980

3.479

3.978

4.976

5.974

7.972

9.968

BSW THREADS TO BS 450-1958

All dimensions are in Inches

SIZE (BSW)

1/8

5/32

3/16

1/4

5/16

3/8

1/2

5/8

3/4

Dia of head (d2) Min = 1.69D

Max = 1.75D

0.201

0.254

0.307

0.412

0.518

0.624

0.835

1.046

1.257

0.219

0.273

0.328

0.438

0.547

0.656

0.875

1.094

1.312

DEPTH OF HEAD  (k) MAX

0.056

0.070

0.084

0.113

0.141

0.169

0.225

0.281

0.338

Slot Depth (t) Nom

0.027

0.034

0.041

0.055

0.069

0.083

0.111

0.138

0.166

Slot Width (n) Min

Max

0.032

0.036

0.042

0.051

0.061

0.072

0.092

0.113

0.134

0.039

0.044

0.050

0.061

0.071

0.082

0.104

0.126

0.148

Dia at thread  (d1)(min)

Max

0.1179

 

0.1791

0.2408

0.3025

0.3643

0.4879

0.6119

0.7360

0.1238

 

0.1863

0.2488

0.3112

0.3736

0.4985

0.6233

0.7482

SLOTTED CHEESE HEAD MACHINE SCREWS

MM THREADS TO IS 1366/2002 ISO 1207 : 1992 (DIN 84) WITH THREADS TO IS 14962 (PART2) 2002 (ISO 965-2 : 1998)

All dimensions are in mm

SIZE

M 2

M 2.5

M 3

M 4

M 5

M 6

M 8

M 10

Dia of head (d2) Min

Max

3.62

4.32

5.32

6.78

8.28

9.78

12.73

15.73

3.80

4.50

5.50

7

8.50

10

13

16

Head depth (k) Min

Max

1.26

1.66

1.86

2.46

3.12

3.60

4.70

5.70

1.40

1.80

2

2.60

3.30

3.90

5

6

Slot Depth (t)MIN

0.60

0.70

0.85

1.10

1.30

1.60

2

2.40

Slot Width (n) Min

Max

0.56

0.66

0.86

1.26

1.26

1.66

2.06

2.56

0.70

0.80

1

1.51

1.51

1.91

2.31

2.81

Dia at thread  (d1) Min

Max

1.886

2.380

2.874

3.838

4.826

5.794

7.76

9.732

1.981

2.480

2.980

3.978

4.976

5.974

7.972

9.968

BSW THREADS TO BS 450-1958

All dimensions are in Inches

SIZE (BSW)

1/8

5/32

3/16

1/4

5/16

3/8

1/2

5/8

3/4

Dia of head (d2) Min

Max

0.180

0.225

0.281

0.360

0.450

0.540

0.720

0.900

1.080

0.188

0.234

0.270

0.375

0.469

0.562

0.750

0.938

1.125

Head depth (k) Min

Max

0.082

0.103

0.124

0.165

0.207

0.249

0.333

0.417

0.500

0.087

0.109

0.131

0.175

0.219

0.262

0.350

0.437

0.525

Slot Depth (t) Nom (Inches)

0.039

0.049

0.059

0.079

0.098

0.118

0.157

0.197

0.236

Slot Width (n) Min

Max

0.032

0.036

0.042

0.051

0.061

0.072

0.092

0.113

0.134

0.039

0.044

0.050

0.061

0.071

0.082

0.104

0.126

0.148

Dia at thread  (d1) Min

Max

0.1179

 

0.1791

0.2408

0.3025

0.3643

0.4879

0.6119

0.7360

0.1238

 

0.1863

0.2488

0.3112

0.3736

0.4985

0.6233

0.7482

SLOTTED RAISED CSK HEAD MACHINE SCREWS

MM THREADS TO IS 8911 - 2005 ISO 2010 : 1994 WITH THREADS TO IS 14962 (PART2) 2002 (ISO 965-2 : 1998)

All dimensions are in mm

 

SIZE

M 2

M 2.5

M 3

M 3.5

M 4

M 5

M 6

M 8

M 10

Dia of head (d2) Min

Max

3.50

4.40

5.20

6.94

8.40

8.94

10.87

15.37

18.30

3.80

4.70

5.50

7.30

8.04

9.30

11.30

15.8

20

DEPTH OF HEAD  (k) MAX

1.20

1.50

1.65

2.35

2.70

2.70

3.30

4.65

5

Slot Depth (t) Min

Max

0.80

1

1.20

1.40

1.60

2

2.40

3.20

3.80

1

1.20

1.45

1.70

1.90

2.40

2.80

3.70

4.40

Slot Width (n) Min

Max

0.56

0.66

0.86

1.06

1.26

1.26

1.66

2.06

2.56

0.70

0.80

1.00

1.20

1.51

1.51

1.91

2.31

2.81

Dia at thread  (d1) Min

Max

1.886

2.380

2.874

3.354

3.838

4.826

5.794

7.760

9.732

1.981

2.480

2.980

3.479

3.978

4.976

5.974

7.972

9.968

SLOTTED MUSHROOM HEAD MACHINE SCREWS TO IS 8822-1978

All dimensions are in mm

SIZE

M 2

M 2.5

M 3

M 3.5

M 4

M 5

M 6

M 8

M 10

Dia of head (d2) Min

Max

3.50

4.40

5.20

6.94

8.40

8.94

10.87

15.37

18.30

3.80

4.70

5.50

7.30

8.04

9.30

11.30

15.8

20

DEPTH OF HEAD  (k) MAX

1.20

1.50

1.65

2.35

2.70

2.70

3.30

4.65

5

Slot Depth (t) Min

Max

0.80

1

1.20

1.40

1.60

2

2.40

3.20

3.80

1

1.20

1.45

1.70

1.90

2.40

2.80

3.70

4.40

Slot Width (n) Min

Max

0.56

0.66

0.86

1.06

1.26

1.26

1.66

2.06

2.56

0.70

0.80

1.00

1.20

1.51

1.51

1.91

2.31

2.81

Dia at thread  (d1) Min

Max

1.886

2.380

2.874

3.354

3.838

4.826

5.794

7.760

9.732

1.981

2.480

2.980

3.479

3.978

4.976

5.974

7.972

9.968

CSK PHILLIPS (CROSS RECESSED) HEAD MACHINE SCREWS TO IS7485 (part 1)/2005 ISO 7046-1 : 1994 (DIN 965A)

All dimensions are in mm

Size

M2

M2.5

M3

M3.5

M4

M5

M6

M8

M10

Head Dia d2 nom = max

3.80 

4.70

5.50

7.30

8.40

9.30

11.30

15.90

18.30

d2 min

3.50

4.40

5.20

6.94

8.04

8.94

10.87

15.37

17.78

Depth of Head k Max

1.20

1.50

1.65

2.35

2.70

2.70

3.30

4.65

5

Recess No

0

1

1

2

2

2

3

4

4

PAN PHILLIPS (CROSS RECESSED) HEAD MACHINE SCREWS TO IS 7483/2005 ISO 7045 : 1994 (DIN 7985)

All dimensions are in mm

Size

M2

M2.5

M3

M3.5

M4

M5

M6

M8

M10

Head Dia d2 nom = max

4

5

5.60

7

8

9.50

12

16

20

d2 Min

3.70

4.70

5.30

6.64

7.64

9.14

11.57

15.57

19.48

Depth of Head k nom = max

1.60

2.10

2.40

2.60

3.10

3.70

4.60

6

7.50

k min

1.46

1.96

2.26

2.46

2.92

3.52

4.30

5.70

7.14

Recess No

0

1

1

2

2

2

3

4

4

ROUND HEAD SCREWS TO BS 450-1958

All dimensions are in Inches

 

SIZE (BSW)

1/8

5/32

3/16

1/4

5/16

3/8

1/2

5/8

3/4

Dia of head (d2) Min

Max

0.201

0.259

0.312

0.417

0.524

0.629

0.840

1.051

1.262

0.219

0.273

0.328

0.438

0.547

0.656

0.875

1.094

1.312

Head depth (k) Min

Max

0.082

0.103

0.124

0.165

0.207

0.249

0.333

0.417

0.500

0.087

0.109

0.131

0.175

0.219

0.262

0.350

0.437

0.525

Slot Depth (t) Nom

0.048

0.060

0.072

0.096

0.120

0.144

0.192

0.240

0.288

Slot Width (n) Min

Max

0.032

0.036

0.042

0.051

0.061

0.072

0.092

0.113

0.134

0.039

0.044

0.050

0.061

0.071

0.082

0.104

0.126

0.148

Dia at thread  (d1) Min

Max

0.1179

 

0.1791

0.2408

0.3025

0.3643

0.4879

0.6119

0.7360

0.1238

 

0.1863

0.2488

0.3112

0.3736

0.4985

0.6233

0.7482

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Tel:     +91 44 2521 4449

+91 44 2522 5862

+91 44 4281 5862

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+91 9841074621

Email: agarwallsons@gmail.com

sanjay@agarwalfasteners.in

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Jones Street,

Chennai – 600 001,

Tamilnadu,

INDIA.

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Important note and disclaimer

This website is under continuous improvement and upgradation.  The technical details in some of these pages are obtained from past experiences, brochures provided by manufacturers and from what is available in the public domain. Their accuracy has not been verified.  These are being presented here for guidance only. Viewers are advised to confirm the details before committing to them. No responsibility will lie with us for any error or discrepancy in the technical or other data provided.