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The lists below show our range of Metric, UNC, UNF, BA, BSW and BSF cup point 'grub' screws,
in grade 45H (or equivalent) high strength steel to BS4168 (Metric)

You can scroll down this page to peruse the range, or use the quick link buttons below to go directly to the thread size you require

If you were looking for our range of spring plungers		please click here

  AAll sizes have hexagon socket ends for driving with allen keys.
All dimensions are in millimetres including socket A/F sizes (imperial sizes have been converted to metric).
If you need a key or hex/ball driver, the correct sizes are listed on each size table, alternatively you can click on the hexagon symbol in the
tables below and you will be taken to the allen key and ball driver page which lists a full range of sizes plus other tools.

Grub Screw Kits
	These grub screw kits are a handy selection of popular cup point sizes used in many hobby , household and engineering applications. Each kit contains sizes ranging from M2 to M6 or M3 to M10, plus the correct sized hex keys to drive them. We offer an option of a stainless steel kit and a black HT steel kit. Please scroll to the bottom of this page for more details or click here.

All prices include 20% VAT  Click here for details

Thread	Overall  Length (mm)	Socket Size	Pack Qty	MF Ref	Price	You can enter/change the number of items on the order form
M2
	Sorry - this item is currently unavailable
M2	2		5	MF-GS20	£0.90
			50	MF-GS20-50	£6.75
M2	3		5	MF-GS21	£1.20
			50	MF-GS21-50	£9.00
M2	4		5	MF-GS22	£1.40
			50	MF-GS22-50	£10.50
M2	5		5	MF-GS23	£1.50
			50	MF-GS23-50	£11.25
M2	6		5	MF-GS24	£1.00
			50	MF-GS24-50	£7.50
M2	8		5	MF-GS25	£1.50
			50	MF-GS25-50	£11.25
Driving Tools for M2 Grub Screws
0.9mm (0.035") Hex Key				MF-HK-09	£0.60
M2.5
M2.5	3		5	MF-GS51	£1.10
			50	MF-GS51-50	£8.20
M2.5	4		5	MF-GS26	£1.10
			50	MF-GS26-50	£8.20
M2.5	5		5	MF-GS27	£1.10
			50	MF-GS27-50	£8.20
M2.5	6		5	MF-GS28	£1.10
			50	MF-GS28-50	£8.20
M2.5	8		5	MF-GS29	£1.40
			50	MF-GS29-50	£10.50
M2.5	10		5	MF-GS30	£1.60
			50	MF-GS30-50	£12.00
Driving Tools for M2.5 Socket Grub Screws
1.27mm (0.05") Hex Key				MF-HK-13	£0.60
1.27mm Hex/Ball Driver				MF-BD-13	£2.75
M3
M3	3		5	MF-GS31	£0.90
			50	MF-GS31-50	£6.75
M3	4		5	MF-GS32	£0.90
			50	MF-GS32-50	£6.75
M3	5		5	MF-GS33	£1.00
			50	MF-GS33-50	£7.50
M3	6		5	MF-GS34	£1.10
			50	MF-GS34-50	£8.20
M3	8		5	MF-GS35	£1.10
			50	MF-GS35-50	£8.20
M3	10		5	MF-GS36	£1.10
			50	MF-GS36-50	£8.20
M3	12		5	MF-GS37	£1.10
			50	MF-GS37-50	£8.20
M3	16		5	MF-GS38	£1.25
			50	MF-GS38-50	£9.40
M3	20		5	MF-GS40	£1.75
			50	MF-GS40-50	£13.10
Driving Tools for M3 Socket Grub Screws
1.5mm Hex Key				MF-HK-15	£0.50
1.5mm Hex/Ball Driver				MF-BD-15	£2.75
M4
M4	4		5	MF-GS41	£0.75
			50	MF-GS41-50	£5.60
M4	5		5	MF-GS42	£0.75
			50	MF-GS42-50	£5.60
M4	6		5	MF-GS43	£0.75
			50	MF-GS43-50	£5.60
M4	8		5	MF-GS44	£0.85
			50	MF-GS44-50	£6.35
M4	10		5	MF-GS46	£0.85
			50	MF-GS46-50	£6.35
M4	12		5	MF-GS47	£0.85
			50	MF-GS47-50	£6.35
M4	16		5	MF-GS48	£0.90
			50	MF-GS48-50	£6.75
M4	20		5	MF-GS49	£1.00
			50	MF-GS49-50	£7.50
M4	25		5	MF-GS50	£1.00
			50	MF-GS50-50	£7.50
Driving Tools for M4 Socket Grub Screws
2.0mm Hex Key				MF-HK-20	£0.50
2.0mm Hex/Ball Driver				MF-BD-20	£2.75
2.0mm T Handle Driver				MF-TH-20	£4.95
M5
M5	5		5	MF-GS52	£0.75
			50	MF-GS52-50	£6.00
M5	6		5	MF-GS53	£0.75
			50	MF-GS53-50	£6.00
M5	8		5	MF-GS54	£0.85
			50	MF-GS54-50	£6.80
M5	10		5	MF-GS55	£0.85
			50	MF-GS55-50	£6.80
M5	12		5	MF-GS56	£0.85
			50	MF-GS56-50	£6.80
M5	16		5	MF-GS57	£0.95
			50	MF-GS57-50	£7.60
M5	20		5	MF-GS58	£0.95
			50	MF-GS58-50	£7.60
Driving Tools for M5 Socket Grub Screws
2.5mm Hex Key				MF-HK-25	£0.50
2.5mm Hex/Ball Driver				MF-BD-25	£2.75
2.5mm T Handle Driver				MF-TH-25	£4.95
M6
M6	5		5	MF-GS62	£0.75
			50	MF-GS62-50	£6.00
M6	6		5	MF-GS63	£0.75
			50	MF-GS63-50	£6.00
M6 (x0.75 fine pitch)	6		5	MF-GS63F	£2.00
M6	8		5	MF-GS64	£0.85
			50	MF-GS64-50	£6.80
M6 (x0.75 fine pitch)	8		5	MF-GS64F	£2.00
M6	10		5	MF-GS66	£0.85
			50	MF-GS66-50	£6.80
M6 (x0.75 fine pitch)	10		5	MF-GS66F	£2.00
M6	12		5	MF-GS67	£1.00
			50	MF-GS67-50	£8.00
M6	16		5	MF-GS68	£1.00
			50	MF-GS68-50	£8.00
M6	20		5	MF-GS69	£1.20
			50	MF-GS69-50	£9.60
M6	25		5	MF-GS70	£1.30
			50	MF-GS70-50	£10.40
M6	30		5	MF-GS71	£1.50
			50	MF-GS71-50	£12.00
Driving Tools for M6 Socket Grub Screws
3.0mm Hex Key				MF-HK-30	£0.50
3mm Hex/Ball Driver				MF-BD-30	£2.95
3mm T Handle Driver				MF-TH-30	£4.95
3mm Swivel wrench				MF-BSHW3	£8.25
M8
M8	8		5	MF-GS80	£1.00
			25	MF-GS80/25	£4.00
M8	10		5	MF-GS81	£1.00
			25	MF-GS81/25	£4.00
M8	12		5	MF-GS82	£1.20
			25	MF-GS82/25	£4.80
M8	16		5	MF-GS84	£1.40
			25	MF-GS84/25	£5.60
M8	20		5	MF-GS86	£1.50
			25	MF-GS86/25	£6.00
Driving Tools for M8 Socket Grub Screws
4mm Hex Key				MF-HK-40	£0.60
4mm Hex/Ball Driver				MF-BD-40	£3.45
4mm T Handle Driver				MF-TH-40	£5.95
4mm Swivel Wrench				MF-BSHW4	£8.25
M10
M10	10		5	MF-GS101	£1.50
			25	MF-GS101-25	£6.00
M10	12		5	MF-GS102	£1.50
			25	MF-GS102-25	£6.00
M10	16		5	MF-GS104	£2.20
			25	MF-GS104-25	£8.80
M10	20		5	MF-GS106	£2.40
			25	MF-GS106-25	£9.60
Driving Tools for M10 Socket Grub Screws
5.0mm Hex Key				MF-HK-50	£0.60
5mm Hex/Ball Driver				MF-BD-50	£3.50
5mm T Handle Driver				MF-TH-50	£6.25
5mm Swivel wrench				MF-BSHW5	£8.25

UNC Grub Screws  (Unified Coarse Thread)  Steel   'Cup' Point (some sizes also in A2 stainless steel where stated)

Thread	Overall  Length (mm)	Socket Size	Pack Qty	MF Ref	Price	You can enter/change the number of items on the order form
2 UNC
2-56	1/8"		5	MF-GS100	£1.20
Driving Tools for 2-56 UNC Socket Grub Screws
0.9mm (0.035") Hex Key				MF-HK-09	£0.60
4 UNC
4-40	1/8"		5	MF-GS110	£1.20
4-40	1/4"		5	MF-GS111	£1.20
4-40	3/8"		5	MF-GS112	£1.20
4-40	1/2"		5	MF-GS113	£1.20
Driving Tools for 4-40 UNC Socket Grub Screws
1.27mm (0.05") Hex Key				MF-HK-13	£0.60
1.27mm Hex/Ball Driver				MF-BD-13	£2.75
5 UNC
5-40	1/8"		5	MF-GS120	£1.20
5-40	3/16"		5	MF-GS121	£1.20
5-40	1/4"		5	MF-GS122	£1.20
5-40	5/16"		5	MF-GS123	£1.20
5-40	1/2"		5	MF-GS125	£1.20
Driving Tools for 5-40 UNC Socket Grub Screws
1.6mm (1/16") Hex Key				MF-HK-16	£0.60
1/16" Hex/Ball Driver				MF-BD-62	£2.75
6 UNC
6-32	1/8"		5	MF-GS130	£1.20
6-32	1/4"		5	MF-GS132	£1.20
6-32	3/8"		5	MF-GS133	£1.20
6-32	1/2"		5	MF-GS134	£1.20
Driving Tools for 6-32 UNC Socket Grub Screws
1.6mm (1/16") Hex Key				MF-HK-16	£0.60
1/16" Hex/Ball Driver				MF-BD-62	£2.75
8 UNC
8-32	1/8"		5	MF-GS140	£1.50
8-32	1/4"		5	MF-GS142	£1.50
8-32	1/2"		5	MF-GS144	£1.50
8-32	1"		5	MF-GS146	£1.75
Driving Tools for 8-32 UNC Socket Grub Screws
2.0mm Hex Key				MF-HK-20	£0.50
2.0mm Hex/Ball Driver				MF-BD-20	£2.75
2.0mm T Handle Driver				MF-TH-20	£4.95
10 UNC
10-24	3/16"		5	MF-GS159	£1.50
10-24	1/4"		5	MF-GS160	£1.50
10-24	3/8"		5	MF-GS162	£1.50
10-24	1/2"		5	MF-GS163	£1.50
10-24	3/4"		5	MF-GS164	£1.50
10-24 Stainless steel	1/4"		5	MF-GS160S	£1.50
10-24 Stainless steel	3/8"		5	MF-GS162S	£1.50
10-24 Stainless steel	1/2"		5	MF-GS163S	£1.50
Driving Tools for 10-24 UNC Socket Grub Screws
2.4mm (3/32) Hex Key				MF-HK-24	£0.60
3/32" Hex/Ball Driver				MF-BD-66	£3.25
3/32" T Handle Driver				MF-TH-332	£4.95
12 UNC
12-24	1/4"		5	MF-GS168	£1.50
Driving Tools for 12-24 UNC Socket Grub Screws
2.4mm (3/32) Hex Key				MF-HK-24	£0.60
3/32" Hex/Ball Driver				MF-BD-66	£3.25
3/32" T Handle Driver				MF-TH-332	£4.95
1/4" UNC
1/4"-20	1/4"		5	MF-GS145	£1.50
			25	MF-GS145/25	£6.00
1/4"-20 Stainless Steel	1/4"		5	MF-GS145S	£1.75
			25	MF-GS145S/25	£7.00
1/4"-20	1/2"		5	MF-GS147	£1.50
			25	MF-GS147/25	£6.00
1/4"-20 Stainless Steel	1/2"		5	MF-GS147S	£1.75
			25	MF-GS147S/25	£7.00
1/4"-20	3/4"		5	MF-GS148	£1.50
			25	MF-GS148/25	£6.00
1/4"-20	1"		5	MF-GS149	£1.50
			25	MF-GS149/25	£6.00
Driving Tools for 1/4-20 UNC Socket Grub Screws
3.2mm (1/8") Hex Key				MF-HK-32	£0.60
1/8" Hex/Ball Driver				MF-BD-69	£3.45
5/16" UNC
5/16"-18	5/16"		5	MF-GS152	£1.50
5/16"-18	3/4"		5	MF-GS153	£1.50
5/16"-18	1"		5	MF-GS154	£1.50
Driving Tools for 5/16-18 UNC Socket Grub Screws
4.0mm Hex/Allen Key				MF-HK-40	£0.60
4.0mm Hex/Ball Driver				MF-BD-40	£3.45
4.0mm T Handle Driver				MF-TH-40	£5.95
4mm Swivel Wrench				MF-BSHW4	£8.25

UNF Grub Screws  (Unified Fine Thread)  - Black Steel (unless specified otherwise)  'Cup' Point

Thread	Overall  Length (mm)	Socket Size	Pack Qty	MF Ref	Price	You can enter/change the number of items on the order form
4 UNF
4-48	1/8"		5	MF-GS110F	£1.20
4-48	3/16"		5	MF-GS111F	£1.20
4-48	1/4"		5	MF-GS112F	£1.20
4-48	1/2"		5	MF-GS113F	£1.50
Driving Tools for 4-48 UNF Socket Grub Screws
1.27mm (0.05") Hex Key				MF-HK-13	£0.60
1.27mm Hex/Ball Driver				MF-BD-13	£2.75
6 UNF
	Sorry - this item is temporarily out of stock
6-40	1/4"		5	MF-GS130F	£1.20
6-40	5/16"		5	MF-GS131F	£1.20
6-40	3/8"		5	MF-GS133F	£1.20
Driving Tools for 6-40 UNF Socket Grub Screws
1.6mm (1/16") Hex Key				MF-HK-16	£0.60
1/16" Hex/Ball Driver				MF-BD-62	£2.75
8 UNF
8-36	1/4"		5	MF-GS142F	£1.20
8-36	3/8"		5	MF-GS143F	£1.20
8-36	1/2"		5	MF-GS144F	£1.20
Driving Tools for 8-36 UNF Socket Grub Screws
2.0mm Hex Key				MF-HK-20	£0.50
2.0mm Hex/Ball Driver				MF-BD-20	£2.75
2.0mm T Handle Driver				MF-TH-20	£4.95
10 UNF
	Please note that our part numbers for 10 UNF grub screws have recently been revised
10-32	1/4"		5	MF-GS160F	£1.20
10-32	3/8"		5	MF-GS162F	£1.20
10-32 Stainless steel	3/8"		5	MF-GS162FS	£2.00
10-32	1/2"		5	MF-GS163F	£1.30
10-32 Stainless steel	1/2"		5	MF-GS163FS	£1.50
10-32	3/4"		5	MF-GS164F	£1.50
10-32 Stainless steel	3/4"		5	MF-GS164FS	£1.50
Driving Tools for 10-32 UNF Socket Grub Screws
2.4mm (3/32") Hex Key				MF-HK-24	£0.60
3/32" Hex/Ball Driver				MF-BD-66	£3.25
3/32" T Handle Driver				MF-TH-332	£4.95
1/4" UNF
1/4"-28	3/16"		5	MF-GS1403F	£1.50
	Sorry - this item is temporally out of stock
1/4"-28 Stainless steel	3/16"		5	MF-GS1403FS	£1.50
1/4"-28	1/4"		5	MF-GS1404F	£1.50
1/4"-28 Stainless steel	1/4"		5	MF-GS1404FS	£1.50
1/4"-28	3/8"		5	MF-GS1406F	£1.50
1/4"-28	1/2"		5	MF-GS1408F	£1.50
Driving Tools for 1/4-28 UNF Socket Grub Screws
3.2mm (1/8") Hex Key				MF-HK-32	£0.60
1/8" Hex/Ball Driver				MF-BD-69	£3.45
5/16" UNF
5/16"-24	1/4"		5	MF-GS51604F	£1.50
5/16"-24	5/16"		5	MF-GS51605F	£1.50
5/16"-24	3/8"		5	MF-GS51606F	£1.50
5/16"-24	1/2"		5	MF-GS51608F	£1.50
Driving Tools for 5/16-24 UNF Socket Grub Screws
4.0mm Hex/Allen Key				MF-HK-40	£0.60
4.0mm Hex/Ball Driver				MF-BD-40	£3.45
4.0mm T Handle Driver				MF-TH-40	£5.95
4mm Swivel Wrench				MF-BSHW4	£8.25
3/8" UNF
3/8"-24	3/8"		5	MF-GS3806F	£1.50
3/8"-24	1/2"		5	MF-GS3808F	£1.50
3/8"-24	3/4"		5	MF-GS3812F	£1.50
3/8"-24	1"		5	MF-GS3816F	£1.50
Driving Tools for 3/8-24 UNF Socket Grub Screws
4.75mm (3/16") Hex Key				MF-HK-475	£0.60
3/16" T Handle Driver				MF-TH-316	£5.65