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Machine Screws - Slotted Countersunk - BA

A machine screw is a type of screw that is commonly used in industrial and manufacturing applications to secure components within engines, electronic products and general machinery.

Countersunk machine screws are designed for installation in countersunk holes to enable them to sit flush within the finished surface. This type of fastener should be installed with a flat-bladed screwdriver or bit.

They are available in zinc plated, brass and stainless-steel finishes.

About BA Thread

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.

Machine Screws - Slotted Countersunk - BA
Guides & Tips

2BA x 3/4

2BA x 1" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR02100

2BA x 3/4

£16.21 £19.45

2BA x 3/4

4BA x 3/16" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR04018

2BA x 3/4

£13.65 £16.38

2BA x 3/4

4BA x 1/4" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR04025

2BA x 3/4

£13.65 £16.38

2BA x 3/4

5BA x 3/8" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR05037

2BA x 3/4

£23.38 £28.06

2BA x 3/4

6BA x 1/2" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR06050

2BA x 3/4

£11.80 £14.16

2BA x 3/4

6BA x 3/4" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR06075

2BA x 3/4

£12.71 £15.25

2BA x 3/4

8BA x 1/4" - Machine Screw Countersunk Slotted - Brass - Pack of 25

Code: MSBASCBR08025

2BA x 3/4

£11.99 £14.39

4BA x 5/8

0BA x 7/8" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC00087

4BA x 5/8

£11.52 £13.82

4BA x 5/8

1BA x 1" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC01100

4BA x 5/8

£20.25 £24.30

4BA x 5/8

2BA x 5/16" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC02031

4BA x 5/8

£11.59 £13.91

4BA x 5/8

2BA x 3/8" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC02037

4BA x 5/8

£13.27 £15.92

4BA x 5/8

2BA x 5/8" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC02062

4BA x 5/8

£13.54 £16.25

4BA x 5/8

2BA x 1 3/4" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC02175

4BA x 5/8

£14.28 £17.14

4BA x 5/8

2BA x 2" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC02200

4BA x 5/8

£14.70 £17.64

4BA x 5/8

3BA x 1" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC03100

4BA x 5/8

£13.93 £16.72

4BA x 5/8

3BA x 2" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC03200

4BA x 5/8

£16.47 £19.76

4BA x 5/8

4BA x 3/16" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC04018

4BA x 5/8

£11.49 £13.79

4BA x 5/8

4BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC04025

4BA x 5/8

£11.56 £13.87

4BA x 5/8

4BA x 3/8" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC04037

4BA x 5/8

£11.97 £14.36

4BA x 5/8

4BA x 2" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC04200

4BA x 5/8

£13.68 £16.42

4BA x 5/8

5BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC05025

4BA x 5/8

£16.23 £19.48

4BA x 5/8

6BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC06025

4BA x 5/8

£11.57 £13.88

4BA x 5/8

6BA x 5/16" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC06031

4BA x 5/8

£11.67 £14.00

4BA x 5/8

6BA x 5/8" - Machine Screw Countersunk Slotted BS 57 - Self Colour - Pack of 25

Code: MSBASCSC06062

4BA x 5/8

£11.67 £14.00

0BA x 3/8

2BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02025

0BA x 3/8

£12.81 £15.37

0BA x 3/8

2BA x 1/2" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02050

0BA x 3/8

£13.71 £16.45

0BA x 3/8

2BA x 3/4" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02075

0BA x 3/8

£11.56 £13.87

0BA x 3/8

2BA x 1 1/4" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02125

0BA x 3/8

£15.04 £18.05

0BA x 3/8

2BA x 1 1/2" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02150

0BA x 3/8

£16.19 £19.43

4BA x 5/8

2BA x 2 1/2" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP02250

4BA x 5/8

£15.94 £19.13

0BA x 3/8

4BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP04025

0BA x 3/8

£11.72 £14.06

0BA x 3/8

4BA x 3/8" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP04037

0BA x 3/8

£11.97 £14.36

4BA x 5/8

4BA x 5/8" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP04062

4BA x 5/8

£12.26 £14.71

0BA x 3/8

4BA x 1" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP04100

0BA x 3/8

£12.54 £15.05

4BA x 5/8

4BA x 1 5/16" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP04131

4BA x 5/8

£12.72 £15.26

0BA x 3/8

6BA x 1/2" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP06050

0BA x 3/8

£11.84 £14.21

0BA x 3/8

6BA x 5/8" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP06062

0BA x 3/8

£11.75 £14.10

0BA x 3/8

6BA x 3/4" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP06075

0BA x 3/8

£11.80 £14.16

4BA x 5/8

8BA x 3/8" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP08037

4BA x 5/8

£11.49 £13.79

4BA x 5/8

8BA x 1/2" - Machine Screw Countersunk Slotted BS 57 - BZP - Pack of 25

Code: MSBASCZP08050

4BA x 5/8

£11.56 £13.87

4BA x 5/8

4BA x 3/8" - Machine Screw Countersunk Slotted BS 57 - YBZP - Pack of 25

Code: MSBASCZY04037

4BA x 5/8

£11.46 £13.75

0BA x 3/8

4BA x 7/16" - Machine Screw Countersunk Slotted BS 57 - YBZP - Pack of 25

Code: MSBASCZY04043

Only 1 pack left in stock

0BA x 3/8

£12.43 £14.92

4BA x 5/8

4BA x 11/16" - Machine Screw Countersunk Slotted BS 57 - YBZP - Pack of 25

Code: MSBASCZY04068

4BA x 5/8

£11.51 £13.81

4BA x 5/8

6BA x 5/16" - Machine Screw Countersunk Slotted BS 57 - YBZP - Pack of 25

Code: MSBASCZY06031

4BA x 5/8

£11.67 £14.00

4BA x 5/8

8BA x 1/4" - Machine Screw Countersunk Slotted BS 57 - YBZP - Pack of 25

Code: MSBASCZY08025

4BA x 5/8

£11.80 £14.16

Bolts Pack Size 25