Socket Cap Screws - BA

BA thread (British association) is a rarely used thread that was once commonly found on small instruments and models. Still sparingly used in some industries such as metering equipment manufacturing and optical equipment.

Socket Cap Screws - BA
Guides & Tips
Delivery & Returns

0BA x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

CODE: SCBASC00050

£20.26 £24.31

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

0.236"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/2"

Tapping Drill Size:

5.1mm

MORE INFO

0BA x 1" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC00100

£20.02 £24.02

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

0.236"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

Tapping Drill Size:

5.1mm

MORE INFO

2BA x 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02025

£17.31 £20.77

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/4"

Tapping Drill Size:

4mm

MORE INFO

2BA x 5/16" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02031

£8.59 £10.31

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

5/16"

Tapping Drill Size:

4mm

MORE INFO

2BA x 3/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02037

£18.93 £22.72

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/8"

Tapping Drill Size:

4mm

MORE INFO

2BA x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02050

£19.41 £23.29

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/2"

Tapping Drill Size:

4mm

MORE INFO

2BA x 5/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02062

£20.99 £25.19

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

5/8"

Tapping Drill Size:

4mm

MORE INFO

2BA x 7/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02087

£21.35 £25.62

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

7/8"

Tapping Drill Size:

4mm

MORE INFO

2BA x 1 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02125

£21.65 £25.98

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1 1/4"

Tapping Drill Size:

4mm

MORE INFO

2BA x 1 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02175

£23.29 £27.95

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1 3/4"

Tapping Drill Size:

4mm

MORE INFO

2BA x 2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC02200

£23.29 £27.95

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

Tapping Drill Size:

4mm

MORE INFO

4BA x 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04025

£11.58 £13.90

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/4"

Tapping Drill Size:

3mm

MORE INFO

4BA x 7/16" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04043

£8.50 £10.20

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

7/16"

Tapping Drill Size:

3mm

MORE INFO

4BA x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04050

£13.01 £15.61

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/2"

Tapping Drill Size:

3mm

MORE INFO

4BA x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 16

CODE: SCBASC04075

Only 4 packs left in stock

£23.75 £28.50

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/4"

Tapping Drill Size:

3mm

MORE INFO

4BA x 1" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04100

£11.41 £13.69

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

Tapping Drill Size:

3mm

MORE INFO

4BA x 1 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04125

£11.58 £13.90

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1 1/4"

Tapping Drill Size:

3mm

MORE INFO

4BA x 1 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04150

£17.63 £21.16

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1 1/2"

Tapping Drill Size:

3mm

MORE INFO

4BA x 1 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC04175

£17.78 £21.34

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1 3/4"

Tapping Drill Size:

3mm

MORE INFO

6BA x 3/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC06037

£11.20 £13.44

Pitch:

0.53P

Threads Per Inch:

47.9

Grade:

Grade 12.9

Diameter:

0.11"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/8"

Tapping Drill Size:

2.3mm

MORE INFO

6BA x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC06050

£16.49 £19.79

Pitch:

0.53P

Threads Per Inch:

47.9

Grade:

Grade 12.9

Diameter:

0.11"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

1/2"

Tapping Drill Size:

2.3mm

MORE INFO

6BA x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC06075

£16.95 £20.34

Pitch:

0.53P

Threads Per Inch:

47.9

Grade:

Grade 12.9

Diameter:

0.11"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/4"

Tapping Drill Size:

2.3mm

MORE INFO

8BA x 5/16" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 2

CODE: SCBASC08031

Only 1 pack left in stock

£2.91 £3.49

Pitch:

0.43P

Threads Per Inch:

59.1

Grade:

Grade 12.9

Diameter:

0.086"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

5/16"

Tapping Drill Size:

1.8mm

MORE INFO

8BA x 3/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

CODE: SCBASC08037

£12.14 £14.57

Pitch:

0.43P

Threads Per Inch:

59.1

Grade:

Grade 12.9

Diameter:

0.086"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/8"

Tapping Drill Size:

1.8mm

MORE INFO

2BA x 3/8" - Socket Cap Screw Grade 12.9 - BZP - Pack of 4

CODE: SCBAZP02037

Only 1 pack left in stock

£5.33 £6.40

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Bright Zinc Plated and Clear Passivation

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/8"

Tapping Drill Size:

4mm

MORE INFO

2BA x 3/4" - Socket Cap Screw Grade 12.9 - BZP - Pack of 25

CODE: SCBAZP02075

£18.53 £22.24

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Bright Zinc Plated and Clear Passivation

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

3/4"

Tapping Drill Size:

4mm

MORE INFO

2BA x 7/8" - Socket Cap Screw Grade 12.9 - BZP - Pack of 10

CODE: SCBAZP02087

£27.11 £32.53

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Bright Zinc Plated and Clear Passivation

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

7/8"

Tapping Drill Size:

4mm

MORE INFO

4BA x 5/8" - Socket Cap Screw Grade 12.9 - BZP - Pack of 10

CODE: SCBAZP04062

£13.01 £15.61

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Bright Zinc Plated and Clear Passivation

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

5/8"

Tapping Drill Size:

3mm

MORE INFO

4BA x 7/8" - Socket Cap Screw Grade 12.9 - BZP - Pack of 10

CODE: SCBAZP04087

£12.81 £15.37

Pitch:

0.66P

Threads Per Inch:

38.5

Grade:

Grade 12.9

Diameter:

0.142"

Material:

Steel

Finish:

Bright Zinc Plated and Clear Passivation

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

7/8"

Tapping Drill Size:

3mm

MORE INFO

2BA x 5/8" - Socket Cap Screw BS 2470 Grade 12.9 - Wedgelock Patch - Self Colour - Pack of 10

CODE: SCWBASC02062

£9.47 £11.36

Pitch:

0.81P

Threads Per Inch:

31.4

Grade:

Grade 12.9

Diameter:

0.185"

Material:

Steel

Finish:

Self Colour

Head Type:

Socket Cap

Thread Type:

Imperial - BA

Length Under Head:

5/8"

Tapping Drill Size:

4mm

MORE INFO

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Socket Cap Screws - BA

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