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Please refer to the table below for
the hexagon key sizes for metric cap screws, countersunk socket screws and grub
screws. Please scroll down the page if you wish to purchase a correct size key,
or a hexagon
ball-end driver (screw
driver with ground ball/hexagon end allowing fast off centre driving). Metric
and inch sizes are listed
It is essential to use the correct
key size for driving cap screws and grub screws etc. In particular, when
tightening the smaller sizes of grub screws, using an incorrect key (which may
appear to be the correct size before higher torques are applied ) can lead to
rounding off of the hexagon socket making removal or further tightening
extremely difficult if not impossible.
This information is supplied in good
faith and is correct to the best of our knowledge.
Inch size keys for our BA and UNC
socket cap screws range are also available below.
PLUS TOP QUALITY
NUT SPINNERS FOR
FAST TIGHTENING OF HEXAGON BOLT HEADS AND NUTS - SEE BOTTOM OF THIS PAGE
TEE HANDLE
DRIVERS
AND
FOLD-UP
ALAN KEY SETS ALSO NOW STOCKED IN A SELECTION OF SIZES
PIN-VICES (sometimes known as hand vices or hand
chucks) - EXCELLENT FOR FINE HAND DRILLING, HOLDING SOLDER WIRE AND HOLDING
BINDING WIRE ETC.
Looking for our large range of drill bits and
new range of 'Snappy' quick
change drill bits?
These are listed in our Taps, Dies and Drills section - please click
here.
A/F is the dimension across opposite flat sides of the hexagon
key in millimetres and is the nominal key size.
|
Socket Cap Screws |
|
Grub Screws |
|
Socket Countersunk & Button Head Screws |
|
(Metric) |
(Metric) |
(Metric) |
|
Thread |
A/F (mm) |
|
Thread |
A/F (mm) |
|
Thread |
A/F (mm) |
|
|
|
|
|
|
|
|
|
M1.6 |
1.5 |
|
M1.6 |
0.7 |
|
- |
- |
|
M2 |
1.5 |
|
M2 |
0.9 |
|
M2 / M2.3 |
1.3 |
|
M2.5/ 2.6 |
2 |
|
M2.5 |
1.3 |
|
M2.5 |
1.5 |
|
M3 |
2.5 |
|
M3 |
1.5 |
|
M3 |
2 |
|
M3.5* |
2.5 |
|
|
|
|
|
|
|
M4 |
3 |
|
M4 |
2.0 |
|
M4 |
2.5 |
|
M5 |
4 |
|
M5 |
2.5 |
|
M5 |
3 |
|
M6 |
5 |
|
M6 |
3 |
|
M6 |
4 |
|
M8 |
6 |
|
M8 |
4 |
|
M8 |
5 |
|
M10 |
8 |
|
M10 |
5 |
|
M10 |
6 |
|
* M3.5x50mm cap screws
require a 2.8mm A/F hex key. |
Sizes for BA and UNC below have been
converted from inches
|
Socket Cap Screws |
|
Grub Screws |
|
Socket Cap Screws |
|
Socket Countersunk & Button Head Screws |
|
Grub Screws |
|
(BA) |
|
(BA) |
|
(UNC) |
|
(UNC & UNF) |
|
(UNC & UNF) |
|
Thread |
A/F (mm) |
|
Thread |
#] |
|
Thread |
A/F (mm) |
|
Thread |
A/F (mm) |
|
Thread |
A/F (mm) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2BA |
4.0 (5/32") |
|
2BA |
2.4 (3/32") |
|
No 2 |
2.0 (5/64") |
|
No 2 |
1.3(0.05") |
|
No 2 |
0.9 |
|
4BA |
2.4 (3/32") |
|
3BA |
2.0 (5/64") |
|
No 3 |
2.0 (5/64") |
|
|
|
|
|
|
|
6BA |
2.0 (5/64") |
|
4BA |
1.6 (1/16") |
|
No 4 |
2.4 (3/32") |
|
No 4 |
1.6 (1/16") |
|
No 4 |
1.3(0.05") |
|
8BA |
1.6 (1/16") |
|
6BA |
1.3 (0.05") |
|
No 5 |
2.4 (3/32") |
|
|
|
|
No 5 |
1.6 (1/16") |
| |
|
|
|
|
|
No 6 |
2.8 (7/64") |
|
No 6 |
2.0 (5/64") |
|
No 6 |
1.6 (1/16") |
| |
|
|
|
|
|
No 8 |
3.6 (9/64") |
|
No 8 |
2.4 (3/32") |
|
No 8 |
2.0 (5/64") |
| |
|
|
|
|
|
No 10 |
4.0 (5/32") |
|
No 10 |
3.2
(1/8") |
|
No 10 |
2.4 (3/32") |
| |
|
|
|
|
|
1/4 |
4.75 (3/16") |
|
1/4 |
4.0 (5/32") |
|
1/4 |
3.2
(1/8") |
We can supply hexagon keys to suit the above sizes :-
or scroll down the page for hex-ball drivers
All prices include 20% VAT
Click
here for details
 |
Single Hexagon Keys
Hardened steel 'L'
form wrenches - black finish
Orders of 50 keys
(of the same size) are automatically discounted at -10% |
|
See below for Hexagon Key Sets |
| A/F dim |
Length (mm) |
Pack Qty |
MF Ref |
Price
|
You can enter/change the number of items on the order form |
| (nom
key size) |
|
|
|
|
|
|
| 0.7
(0.027") |
30 |
1 |
MF-HK-07 |
£0.60 |
|
| 0.9
(0.035") |
38 |
1 |
MF-HK-09 |
£0.60 |
|
| 1.3
(0.05") |
41 |
1 |
MF-HK-13 |
£0.60 |
|
| 1.5 |
45 |
1 |
MF-HK-15 |
£0.50 |
|
|
1.6 (1/16") |
45 |
1 |
MF-HK-16 |
£0.60 |
|
| 2.0* |
50 |
1 |
MF-HK-20 |
£0.50 |
|
|
2.4 (3/32") |
50 |
1 |
MF-HK-24 |
£0.60 |
|
| 2.5 |
56 |
1 |
MF-HK-25 |
£0.50 |
|
| 2.8
(7/64") |
56 |
1 |
MF-HK-28 |
£0.60 |
|
| 3 |
63 |
1 |
MF-HK-30 |
£0.50 |
|
| 3.2
(1/8") |
63 |
1 |
MF-HK-32 |
£0.60 |
|
| 3.6
(9/64") |
63 |
1 |
MF-HK-36 |
£0.60 |
|
| 4 |
70 |
1 |
MF-HK-40 |
£0.60 |
|
| 4.75
(3/16") |
80 |
1 |
MF-HK-475 |
£0.60 |
|
| 5 |
80 |
1 |
MF-HK-50 |
£0.60 |
|
| 6.35
(1/4") |
90 |
1 |
MF-HK-635 |
£0.70 |
|
* For 2mm A/F sockets, we also stock 85mm long reach allen keys,
hexagon ball-end screwdrivers, and bit inserts for electric and manual socket
screw drivers.
For these items please go to our
servo screw page.
If the size you require isn't listed please
e mail us for a no-obligation quotation.
Imperial (inch) sizes also available on application
All prices
include 20% VAT
Click
here for details
 |
Metric & Inch sizes Fold-Up
Hexagon ('Allen') key sets |
|
Bondhus high quality fold up allen keys mounted in a soft feel ergonomic
case. |
|
Keys can be opened through a full 180 degree arc, which enables continuous
driving in tight spots without the need to continuously re-insert the
key.
|
|
Type |
Hex sizes included |
MF Ref |
Price |
You can enter/change the number of items on the order form |
|
Each |
| |
|
|
|
|
| Metric
|
1.5,2,2.5,3,4,5,6mm |
MF-BFK-10 |
£6.45 |
|
| (Red
handle) |
| |
|
|
| Inch |
0.05, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16" |
MF-BFK-20 |
£7.30 |
|
|
(Yellow handle) |
| |
|
|
|
|
|
Twin Set Deal |
Order both the above sets and save 10% |
MF-BFK-30 |
£12.40 |
|
| |
|
|
|
|
All prices include 20% VAT
Click
here for details
 |
Swivel Head Wrenches
By Bondhus |
 |
|
These wrenches are particularly useful for
driving Socket Cap screws, Button heads and Grub screws where nearby
obstructions make access awkward. By altering the angle of the long
handle, screws can be rotated without having to repeatedly remove
the driver from the socket.
Both ends are hexagonal so the wrench can also be used as a long
reach allen key. |
Hex
Size
A/F (mm) |
Suitable
For Driving: |
Short
Arm
Length (mm) |
Long
Arm
Length (mm) |
MF Ref |
Price
Each |
You can enter/change the number of items on the order form |
Cap
Screw |
Button
Head |
Grub
Screw |
| |
|
|
|
|
|
|
|
|
| 3 |
M4 |
M5 |
M6 |
25 |
100 |
MF-BSHW3 |
£7.25 |
|
|
|
|
|
|
|
|
|
|
| 4 |
M5 |
M6 |
M8 |
31 |
107 |
MF-BSHW4 |
£7.40 |
|
|
|
|
|
|
|
|
|
|
| 5 |
M6 |
M8 |
M10 |
35 |
121 |
MF-BSHW5 |
£7.60 |
|
| |
|
|
|
|
|
|
|
|
 |
Metric Hexagon
Ball-Drivers
Bondhus high quality tools for fast off-centre driving of
Metric grub
and cap screws |
|
Please note that the
sizes below are the A/F dimension, the across flats dimension of the
socket they fit. This is not the metric screw size they are used to
tighten. As an example, an M2 metric cap screw requires a 1.5mm A/F
driver, not a 2mm driver.
If in doubt of the size you require, please scroll further up this page
where you will find a
table of driver sizes for various screw types and sizes. |
|
A/F dim |
Blade |
Handle |
MF Ref |
Price |
You can enter/change the number of items on the order form |
|
(mm) |
length (mm) |
Length
(mm) |
Each |
| |
|
|
|
|
|
|
1.5 |
65 |
55 |
MF-BD-15 |
£2.60 |
|
|
|
|
|
|
|
|
2.0 |
70
(std length) |
55 |
MF-BD-20 |
£2.75 |
|
|
|
|
|
|
|
|
2.0 |
98
(long series) |
55 |
MF-BD-20L |
£3.25 |
|
