From £0.23 Incl. VATFrom £0.19 Excl. VAT
The threads have a 55 degree angle, which is different to the 60 degree angle found on UNF and UNC threads.
Whitworth setscrews were common in classic British cars and motorcycles from manufacturers such as MG, Austin, Morris, Triumph, Jaguar, Land Rover and Norton. Enthusiasts and restorers of classic British vehicles often need these fasteners to achieve authenticity.
We stock them in unplated steel and zinc plated.
WHITWORTH/BSW TPI Chart
Diameter | TPI | Diameter | TPI | Diameter | TPI |
3/16 | 24 | 5/8 | 11 | 1 1/2 | 6 |
1/4 | 20 | 3/4 | 10 | 1 3/4 | 5 |
5/16 | 18 | 7/8 | 9 | 2 | 4 ½ |
3/8 | 16 | 1 | 8 | 2 1/4 | 4 |
7/16 | 14 | 1 1/8 | 7 | 2 1/2 | 4 |
1/2 | 12 | 1 1/4 | 7 | 2 3/4 | 3 ½ |
9/16 | 12 | 1 3/8 | 6 | 3 | 3 ½ |
Check other bolt thread TPIs here
WHITWORTH Nut options click here
Imperial Washers click hereÂ
SKU | Name | Thread Size (T) | Length (L) | Material / Finish |
---|---|---|---|---|
SKU: WHIT.SETS.3/8X31/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 3 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X1.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X1.ZYP | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1" | Material / Finish: Zinc Yellow |
SKU: WHIT.SETS.5/16X1/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X11/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X11/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1 1/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X15/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 1 5/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X21/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 2 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X21/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 2 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X23/4.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 2 3/4" | Material / Finish: Zinc |
SKU: WHIT.SETS.5/16X3/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X3/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 3/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X31/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 3 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/16X5/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/16" | Length (L): 5/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/8X31/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/8" | Length (L): 3 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.5/8X5.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 5/8" | Length (L): 5" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X1/2.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 1/2" | Material / Finish: Zinc |
SKU: WHIT.SETS.7/16X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X11/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 1 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X13/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 1 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X15/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 1 5/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X21/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 2 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X21/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 2 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X23/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 2 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X23/4.ZYP | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 2 3/4" | Material / Finish: Zinc Yellow |
SKU: WHIT.SETS.7/16X3.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 3" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X3/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X31/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 3 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X41/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 4 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X5.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 5" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/16X6.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/16" | Length (L): 6" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X21/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 2 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X3.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 3" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X31/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 3 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.7/8X6.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 7/8" | Length (L): 6" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X1.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 1" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X11/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 1 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X13/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 1 3/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X21/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 2 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X3.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 3" | Material / Finish: Zinc |
SKU: WHIT.SETS.1/2X3/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X31/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 3 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X51/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 5 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/2X7/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/2" | Length (L): 7/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X1.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X1/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X1/2.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1/2" | Material / Finish: Zinc |
SKU: WHIT.SETS.1/4X1/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X13/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 1 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X21/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 2 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X21/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 2 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X23/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 2 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X3.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 3" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X3/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X3/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 3/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X5/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 5/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1/4X7/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1/4" | Length (L): 7/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.11/4X51/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1 1/4" | Length (L): 5 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1X21/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1" | Length (L): 2 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1X23/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1" | Length (L): 2 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1X33/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1" | Length (L): 3 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.1X41/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 1" | Length (L): 4 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/16X3/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/16" | Length (L): 3/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/16X5/16.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/16" | Length (L): 5/16" | Material / Finish: Zinc |
SKU: WHIT.SETS.3/16X5/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/16" | Length (L): 5/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/16X7/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/16" | Length (L): 7/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/4X1.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/4" | Length (L): 1" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/4X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/4" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/4X11/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/4" | Length (L): 1 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/4X13/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/4" | Length (L): 1 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X1.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 1" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X11/2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 1 1/2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X11/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 1 1/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X11/4.ZYP | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 1 1/4" | Material / Finish: Zinc Yellow |
SKU: WHIT.SETS.3/8X11/8.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 1 1/8" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X2.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 2" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X21/2.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 2 1/2" | Material / Finish: Zinc |
SKU: WHIT.SETS.3/8X23/4.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 2 3/4" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X3.SC | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 3" | Material / Finish: Self Colour |
SKU: WHIT.SETS.3/8X3.Z | Name: WHITWORTH Setscrews Grade R | Thread Size (T): 3/8" | Length (L): 3" | Material / Finish: Zinc |