Durlok Flange Bolts

Durlok flange bolts are high-grade anti-vibration hexagon head bolts with a serrated underside to the head that prevents any loosening from jarring or vibration. They are generally used in engineering applications.

Durlok bolts are made by leading manufacturer Unbrako. They have a property class of 12.9, which is one of the highest grades of bolts available. They have a tensile strength of 1220N / mm2 min.

All threads are metric coarse.

Click here to view Durlok nuts.

Durlok Flange Bolts
Guides & Tips

M6 x 16mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC06016

£17.06 £20.47

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

16mm

Spanner Size:

10mm

Tapping Drill Size:

5mm

MORE INFO

M6 x 16mm - Durlok Flange Bolt - Self Colour - Pack of 50

CODE: DFBMCSC0601650

£30.19 £36.23

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

16mm

Spanner Size:

10mm

Tapping Drill Size:

5mm

MORE INFO

M6 x 20mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC06020

£17.99 £21.59

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

20mm

Spanner Size:

10mm

Tapping Drill Size:

5mm

MORE INFO

M6 x 25mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC06025

£18.97 £22.76

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

25mm

Spanner Size:

10mm

Tapping Drill Size:

5mm

MORE INFO

M6 x 30mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC06030

£19.23 £23.08

Pitch:

1.00P

Threads Per Inch:

25.4

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

30mm

Spanner Size:

10mm

Tapping Drill Size:

5mm

MORE INFO

M8 x 12mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC08012

£17.36 £20.83

Pitch:

1.25P

Threads Per Inch:

20.3

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

12mm

Spanner Size:

13mm

Tapping Drill Size:

6.8mm

MORE INFO

M8 x 20mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC08020

£18.95 £22.74

Pitch:

1.25P

Threads Per Inch:

20.3

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

20mm

Spanner Size:

13mm

Tapping Drill Size:

6.8mm

MORE INFO

M8 x 30mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC08030

£19.68 £23.62

Pitch:

1.25P

Threads Per Inch:

20.3

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

30mm

Spanner Size:

13mm

Tapping Drill Size:

6.8mm

MORE INFO

M8 x 40mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC08040

£19.94 £23.93

Pitch:

1.25P

Threads Per Inch:

20.3

Grade:

Grade 12.9

Diameter:

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

13mm

Tapping Drill Size:

6.8mm

MORE INFO

M10 x 16mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC10016

£16.92 £20.30

Pitch:

1.50P

Threads Per Inch:

Grade:

Grade 12.9

Diameter:

M10

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

16mm

Spanner Size:

17mm

Tapping Drill Size:

8.5mm

MORE INFO

M10 x 25mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC10025

£26.30 £31.56

Pitch:

1.50P

Threads Per Inch:

Grade:

Grade 12.9

Diameter:

M10

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

25mm

Spanner Size:

17mm

Tapping Drill Size:

8.5mm

MORE INFO

M10 x 30mm - Durlok Flange Bolt - Self Colour - Pack of 5

CODE: DFBMCSC10030

£15.77 £18.92

Pitch:

1.50P

Threads Per Inch:

Grade:

Grade 12.9

Diameter:

M10

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

30mm

Spanner Size:

17mm

Tapping Drill Size:

8.5mm

MORE INFO

M10 x 40mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC10040

£25.93 £31.12

Pitch:

1.50P

Threads Per Inch:

Grade:

Grade 12.9

Diameter:

M10

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

17mm

Tapping Drill Size:

8.5mm

MORE INFO

M12 x 30mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC12030

£23.68 £28.42

Pitch:

1.75P

Threads Per Inch:

14.5

Grade:

Grade 12.9

Diameter:

M12

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

30mm

Spanner Size:

19mm

Tapping Drill Size:

10.2mm

MORE INFO

M12 x 40mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC12040

£26.83 £32.20

Pitch:

1.75P

Threads Per Inch:

14.5

Grade:

Grade 12.9

Diameter:

M12

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

19mm

Tapping Drill Size:

10.2mm

MORE INFO

M14 x 40mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC14040

£32.60 £39.12

Pitch:

2.00P

Threads Per Inch:

12.5

Grade:

Grade 12.9

Diameter:

M14

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

22mm

Tapping Drill Size:

12mm

MORE INFO

M16 x 40mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC16040

£33.22 £39.86

Pitch:

2.00P

Diameter:

M16

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

24mm

MORE INFO

M16 x 50mm - Durlok Flange Bolt - Self Colour - Pack of 10

CODE: DFBMCSC16050

£36.00 £43.20

Pitch:

2.00P

Diameter:

M16

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

50mm

Spanner Size:

24mm

MORE INFO

M16 x 60mm - Durlok Flange Bolt - Self Colour - Pack of 4

CODE: DFBMCSC16060

£23.17 £27.80

Pitch:

2.00P

Threads Per Inch:

12.5

Grade:

Grade 12.9

Diameter:

M16

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

60mm

Spanner Size:

24mm

Tapping Drill Size:

14mm

MORE INFO

M16 x 70mm - Durlok Flange Bolt - Self Colour - Pack of 2

CODE: DFBMCSC16070

Only 1 pack left in stock

£18.39 £22.07

Pitch:

2.00P

Threads Per Inch:

12.5

Grade:

Grade 12.9

Diameter:

M16

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

70mm

Spanner Size:

24mm

Tapping Drill Size:

14mm

MORE INFO

M20 x 45mm - Durlok Flange Bolt - Self Colour - Pack of 5

CODE: DFBMCSC20045

£34.70 £41.64

Pitch:

2.50P

Threads Per Inch:

10.1

Grade:

Grade 12.9

Diameter:

M20

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

45mm

Spanner Size:

30mm

Tapping Drill Size:

17.5mm

MORE INFO

M20 x 50mm - Durlok Flange Bolt - Self Colour - Pack of 5

CODE: DFBMCSC20050

£34.75 £41.70

Pitch:

2.50P

Threads Per Inch:

10.1

Grade:

Grade 12.9

Diameter:

M20

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

50mm

Spanner Size:

30mm

Tapping Drill Size:

17.5mm

MORE INFO

M20 x 60mm - Durlok Flange Bolt - Self Colour - Pack of 6

CODE: DFBMCSC20060

Only 3 packs left in stock

£34.75 £41.70

Pitch:

2.50P

Threads Per Inch:

10.1

Grade:

Grade 12.9

Diameter:

M20

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

60mm

Spanner Size:

30mm

Tapping Drill Size:

17.5mm

MORE INFO

M12 x 40mm - Verbus Ripp Flange Bolt Grade 10.9 - Self Colour - Pack of 6

CODE: VRBMCSC12040

Only 1 pack left in stock

£12.12 £14.54

Pitch:

1.75P

Threads Per Inch:

14.5

Grade:

Grade 10.9

Diameter:

M12

Material:

Steel

Finish:

Self Colour

Head Type:

Flange Head

Thread Type:

Metric Coarse

Length Under Head:

40mm

Spanner Size:

19mm

Tapping Drill Size:

10.2mm

MORE INFO

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