Socket Cap Screws - UNF

UNF (Unified National Fine)

UNF stands for Unified National Fine. It is a common imperial thread type with more threads per axial distance than its UNC equivalent.

Unified thread types (UNF and UNC) were introduced at the beginning of World War 2 to enable the interchangeability of machinery manufacturing between the USA, Canada and Great Britain. Still commonly found on a vast array of old machines and vehicles in the UK, UNF and UNC threads continue to be the standard thread in the USA and Canada.

Socket Cap Screws - UNF
Guides & Tips

M10 x 20mm - Socket Cap Screw DIN 912 Grade 12.9 - Anulok 180 Patch - Self Colour - Pack of 5

3/4" UNF x 2" - Socket Cap Screw BS 2470 Grade 12.9 - Anulok 180 Patch - Self Colour - Pack of 2

Code: SCAUFSC0750200

£7.63 £9.16

M16 x 60mm - Socket Cap Screw DIN 912 Grade 12.9 - Eslok Patch - Self Colour

No10UNF x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Eslok Patch - Self Colour - Pack of 15

Code: SCEUFSC0100050

Only 1 pack left in stock

£7.56 £9.07

1/4" UNF x 1" - Socket Cap Screw - A2 Stainless Steel - Pack of 2

Code: SCUFA20250100

£12.55 £15.06

3/8" UNF x 1 1/2" - Socket Cap Screw - A2 Stainless Steel

Code: SCUFA20370150

£14.46 £17.35

1/2" UNF x 1 3/4" - Socket Cap Screw - A2 Stainless Steel

Code: SCUFA20500175

£46.34 £55.61

No8 UNF x 1 1/4" - Socket Cap Screw Grade 12.9 - Self Colour - Pack of 10

Code: SCUFSC0080125

£23.36 £28.03

No10UNF x 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0100025

£18.27 £21.92

No10UNF x 3/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 15

Code: SCUFSC0100037

£11.67 £14.00

No10UNF x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0100050

£18.73 £22.48

No10UNF x 5/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0100062

£21.42 £25.70

No10UNF x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0100075

£22.72 £27.26

No10UNF x 1" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 10

Code: SCUFSC0100100

£10.17 £12.20

1/4" UNF x 3/8" - Socket Cap Screw Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0250037

£20.40 £24.48

1/4" UNF x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0250075

£13.47 £16.16

1/4" UNF x 2 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0250250

£11.64 £13.97

1/4" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0250300

£12.26 £14.71

1/4" UNF x 6" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 2

Code: SCUFSC0250600

£27.05 £32.46

5/16" UNF x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 15

Code: SCUFSC0310050

£19.75 £23.70

5/16" UNF x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0310075

£20.82 £24.98

5/16" UNF x 7/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 4

Code: SCUFSC0310087

Only 1 pack left in stock

£5.49 £6.59

5/16" UNF x 1 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0310125

£21.01 £25.21

5/16" UNF x 1 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0310150

£21.75 £26.10

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

Code: SCUFSC0310200

£11.91 £14.29

5/16" UNF x 2 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0310250

£13.20 £15.84

5/16" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0310300

£17.24 £20.69

3/8" UNF x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0370050

£23.42 £28.10

3/8" UNF x 5/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 2

Code: SCUFSC0370062

£10.72 £12.86

3/8" UNF x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0370075

From 1 reviews

£14.32 £17.18

3/8" UNF x 1" - Socket Cap Screw Grade 12.9 - Self Colour - Pack of 25

Code: SCUFSC0370100

£7.26 £8.71

3/8" UNF x 1 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0370150

£15.06 £18.07

3/8" UNF x 2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0370200

From 1 reviews

£15.29 £18.35

3/8" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0370300

£5.10 £6.12

3/8" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 50

Code: SCUFSC037030050

£54.36 £65.23

7/16" UNF x 5" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0430500

£19.33 £23.20

1/2" UNF x 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0500075

£23.11 £27.73

1/2" UNF x 1 1/4" - Socket Cap Screw Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0500125

£11.89 £14.27

1/2" UNF x 1 1/4" - Socket Cap Screw Grade 12.9 - Self Colour - Pack of 50

Code: SCUFSC050012550

£53.92 £64.70

1/2" UNF x 1 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0500175

From 1 reviews

£14.55 £17.46

1/2" UNF x 1 3/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 50

Code: SCUFSC050017550

£65.94 £79.13

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

Code: SCUFSC0500200

£16.06 £19.27

5/8" UNF x 1" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0620100

£12.18 £14.62

5/8" UNF x 1 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0620150

£12.50 £15.00

5/8" UNF x 2 1/4" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 2

Code: SCUFSC0620225

£12.07 £14.48

5/8" UNF x 2 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0620250

£8.22 £9.86

5/8" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 2

Code: SCUFSC0620300

£16.64 £19.97

5/8" UNF x 3 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0620350

£66.72 £80.06

5/8" UNF x 4 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0620450

£78.19 £93.83

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

Code: SCUFSC0620500

£25.37 £30.44

3/4" UNF x 1 1/2" - Socket Cap Screw 1960 Series Grade 12.9 - Self Colour

Code: SCUFSC0750150S

£10.98 £13.18

3/4" UNF x 1 1/2" - Socket Cap Screw 1960 Series Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC0750150S25

£32.87 £39.44

3/4" UNF x 2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0750200

£11.35 £13.62

3/4" UNF x 2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC075020025

£37.24 £44.69

3/4" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0750300

£11.94 £14.33

3/4" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour - Pack of 5

Code: SCUFSC075030025

£41.00 £49.20

7/8" UNF x 1 5/8" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC0870162

£15.92 £19.10

1" UNF x 3" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC1000300

£51.21 £61.45

1" UNF x 4 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Self Colour

Code: SCUFSC1000450

£78.19 £93.83

5/16" UNF x 1/2" - Socket Cap Screw BS 2470 Grade 12.9 - Wedgelock Patch - Self Colour - Pack of 15

Code: SCWUFSC0310050

£12.67 £15.20

Socket Cap Screws - UNF

UNF (Unified National Fine)

Screws - Frequently Asked Questions

Screws - Guides & Reviews

Screws - Installation Advice