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Inch Thumb Screws

Inch Thumb Screws

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Thumbscrews are hand-operated fasteners designed for quick and easy tightening or loosening without the need for tools. They feature a ridged or winged head that provides excellent grip, allowing users to adjust or secure components by hand.

Thumbscrews are commonly used where frequent adjustments, assembly, or maintenance are required—such as in machinery panels, enclosures, jigs, fixtures, and electronic equipment. Their tool-free design makes them ideal for applications prioritising convenience, accessibility, and repeatable use.

Available in a variety of materials and finishes.

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Available in a variety of materials and finishes.

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K0137 Inch - Knurled Nuts In Steel & Stainless Steel

K0140 Inch - Thumbscrews In Steel & Stainless Steel

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	D	D1	D3	D4	H	K	L	Material	T	Price (Exc. Tax)	Stock
Filters
K0140.A3X20 View product	5/16-18	30	16	--	18	6	20	Free-cutting Steel	--	£7.97	0
K0140.A32X25 View product	5/16-18	30	16	--	18	6	25	Stainless Steel	--	£10.62	0
K0140.AE2X16 View product	8-32	16	8	--	9.5	3.5	16	Stainless Steel	--	£4.21	0
K0140.AE2X10 View product	8-32	16	8	--	9.5	3.5	10	Stainless Steel	--	£3.76	0
K0140.A2X10 View product	1/4-20	24	12	--	15	5	10	Free-cutting Steel	--	£4.77	0
K0140.A42X20 View product	3/8-16	36	20	--	23	8	20	Stainless Steel	--	£13.72	0
K0140.A3X25 View product	5/16-18	30	16	--	18	6	25	Free-cutting Steel	--	£8.85	0
K0140.A22X16 View product	1/4-20	24	12	--	15	5	16	Stainless Steel	--	£6.36	0
K0140.A22X10 View product	1/4-20	24	12	--	15	5	10	Stainless Steel	--	£5.83	0
K0140.A12X10 View product	10-32	20	10	--	11.5	4	10	Stainless Steel	--	£4.50	0
K0140.A02X10 View product	10-24	20	10	--	11.5	4	10	Stainless Steel	--	£4.50	0
K0137.1A42 View product	3/8-16	36	28	30	20	14	--	Stainless Steel	12	£11.83	0
K0137.1A32 View product	5/16-18	30	20	24	17	12	--	Stainless Steel	10	£7.73	0
K0137.1A2 View product	1/4-20	24	16	18	14	10	--	Free-cutting Steel	6	£4.97	0
K0137.1A12 View product	10-32	20	14	15	12	8	--	Stainless Steel	5	£4.97	0
K0140.AEX20 View product	8-32	16	8	--	9.5	3.5	20	Free-cutting Steel	--	£3.96	0
K0140.A32X20 View product	5/16-18	30	16	--	18	6	20	Stainless Steel	--	£9.70	0
K0140.A32X16 View product	5/16-18	30	16	--	18	6	16	Stainless Steel	--	£9.05	0
K0140.A2X20 View product	1/4-20	24	12	--	15	5	20	Free-cutting Steel	--	£5.78	0
K0140.A4X25 View product	3/8-16	36	20	--	23	8	25	Free-cutting Steel	--	£12.35	0
K0140.A22X25 View product	1/4-20	24	12	--	15	5	25	Stainless Steel	--	£7.59	0
K0140.A22X20 View product	1/4-20	24	12	--	15	5	20	Stainless Steel	--	£7.00	0
K0140.A1X16 View product	10-32	20	10	--	11.5	4	16	Free-cutting Steel	--	£3.98	0
K0140.A12X16 View product	10-32	20	10	--	11.5	4	16	Stainless Steel	--	£4.89	0
K0137.1A5 View product	1/2-13	40	32	34	24	16	--	Free-cutting Steel	10	£14.74	0
K0137.1A3 View product	5/16-18	30	20	24	17	12	--	Free-cutting Steel	7	£6.74	0
K0137.1A22 View product	1/4-20	24	16	18	14	10	--	Stainless Steel	8	£5.79	0
K0137.1A1 View product	10-32	24	16	18	14	10	--	Free-cutting Steel	6	£4.25	0
K0137.1A02 View product	10-24	20	14	15	12	8	--	Stainless Steel	7	£4.97	0
K0140.A3X16 View product	5/16-18	30	16	--	18	6	16	Free-cutting Steel	--	£7.36	0
K0140.AEX16 View product	8-32	16	8	--	9.5	3.5	16	Free-cutting Steel	--	£3.50	0
K0140.AEX10 View product	8-32	16	8	--	9.5	3.5	10	Free-cutting Steel	--	£3.03	0
K0140.AE2X20 View product	8-32	16	8	--	9.5	3.5	20	Stainless Steel	--	£4.75	0
K0140.A2X25 View product	1/4-20	24	12	--	15	5	25	Free-cutting Steel	--	£6.27	0
K0140.A2X16 View product	1/4-20	24	12	--	15	5	16	Free-cutting Steel	--	£5.28	0
K0140.A4X20 View product	3/8-16	36	20	--	23	8	20	Free-cutting Steel	--	£11.33	0
K0140.A42X25 View product	3/8-16	36	20	--	23	8	25	Stainless Steel	--	£14.91	0
K0140.A1X20 View product	10-32	20	10	--	11.5	4	20	Free-cutting Steel	--	£4.39	0
K0140.A1X10 View product	10-32	20	10	--	11.5	4	10	Free-cutting Steel	--	£3.76	0
K0140.A12X20 View product	10-32	20	10	--	11.5	4	20	Stainless Steel	--	£5.37	0
K0140.A0X20 View product	10-24	20	10	--	11.5	4	20	Free-cutting Steel	--	£4.39	0
K0140.A0X16 View product	10-24	20	10	--	11.5	4	16	Free-cutting Steel	--	£3.98	0
K0140.A0X10 View product	10-24	20	10	--	11.5	4	10	Free-cutting Steel	--	£3.76	0
K0140.A02X20 View product	10-24	20	10	--	11.5	4	20	Stainless Steel	--	£5.37	0
K0140.A02X16 View product	10-24	20	10	--	11.5	4	16	Stainless Steel	--	£4.89	0
K0137.1A52 View product	1/2-13	40	32	34	24	16	--	Stainless Steel	14	£16.57	0
K0137.1A4 View product	3/8-16	36	28	30	20	14	--	Free-cutting Steel	8	£10.38	0
K0137.1A0 View product	10-24	20	14	15	12	8	--	Free-cutting Steel	5	£4.25	0

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Inch Thumb Screws

K0137 Inch - Knurled Nuts In Steel & Stainless Steel

K0140 Inch - Thumbscrews In Steel & Stainless Steel

£7.97

£10.62

£4.21

£3.76

£4.77

£13.72

£8.85

£6.36

£5.83

£4.50

£4.50

£11.83

£7.73

£4.97

£4.97

£3.96

£9.70

£9.05

£5.78

£12.35

£7.59

£7.00

£3.98

£4.89

£14.74

£6.74

£5.79

£4.25

£4.97

£7.36

£3.50

£3.03

£4.75

£6.27

£5.28

£11.33

£14.91

£4.39

£3.76

£5.37

£4.39

£3.98

£3.76

£5.37

£4.89

£16.57

£10.38

£4.25

Knurled Thumbscrew. Free-cutting Steel. 5/16"-18x20mm Thread. 30mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 5/16"-18x25mm Thread. 30mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 8-32UNCx16mm Thread. 16mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 8-32UNCx10mm Thread. 16mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 1/4"-20x10mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 3/8"-16x20mm Thread. 36mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 5/16"-18x25mm Thread. 30mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 1/4"-20x16mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 1/4"-20x10mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 10-32UNCx10mm Thread. 20mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 10-24UNCx10mm Thread. 20mm Grip Diameter.

Knurled Nut. Stainless Steel. 3/8"-16 Thread. 36mm Grip Diameter.

Knurled Nut. Stainless Steel. 5/16"-18 Thread. 30mm Grip Diameter.

Knurled Nut. Free-cutting Steel. 1/4"-20 Thread. 24mm Grip Diameter.

Knurled Nut. Stainless Steel. 10-32UNC Thread. 20mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 8-32UNCx20mm Thread. 16mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 5/16"-18x20mm Thread. 30mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 5/16"-18x16mm Thread. 30mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 1/4"-20x20mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 3/8"-16x25mm Thread. 36mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 1/4"-20x25mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 1/4"-20x20mm Thread. 24mm Grip Diameter.

Knurled Thumbscrew. Free-cutting Steel. 10-32UNCx16mm Thread. 20mm Grip Diameter.

Knurled Thumbscrew. Stainless Steel. 10-32UNCx16mm Thread. 20mm Grip Diameter.

Knurled Nut. Free-cutting Steel. 1/2"-13 Thread. 40mm Grip Diameter.

Knurled Nut. Free-cutting Steel. 5/16"-18 Thread. 30mm Grip Diameter.

Knurled Nut. Stainless Steel. 1/4"-20 Thread. 24mm Grip Diameter.

Knurled Nut. Free-cutting Steel. 10-32UNC Thread. 24mm Grip Diameter.

Knurled Nut. Stainless Steel. 10-24UNC Thread. 20mm Grip Diameter.