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ALLEN KEYS (HEX KEYS) & TORX KEYS

 

KINCROMELOGOsmall.jpg Bondhus logo.gif

Wiha Logo.jpg

Unbrako Logo.png

 

 

Allen Keys 01.jpg Allen Keys 02.jpg Allen Keys 03.jpg
Allen Keys 04.jpg Allen Keys 05.jpg Allen Keys 06.jpg

Miller’s Tooling sells many variations of the allen keys & torx keys;
Ball end allen key sets, T Handle allen keys & torx keys, individual allen keys & torx keys, torx sockets, in hex sockets, impact in hex sockets, vandal proof allen keys & torx keys, fold up sets of allen keys & torx keys, flag torx keys, torque setting handles for torx keys & allen keys, screwdriver type allen & torx keys.


A hex key, Allen key or Allen wrench is a tool used to drive bolts and screws with hexagonal sockets in their heads, known as cap head screws.
The “Allen” name is a registered trademark, originated by the Allen Manufacturing Company, and currently owned by Apex Tool Group, LLC. The standard generic name used in catalogues and published books and journals is "hex key".
Famous brands of hex key or allen key include Allen, Unbrako, Bondhus and Inbus key or hexagon wrench. The term hex-head is sometimes used to refer to this type of allen key drive.
In the fastener industry, the terms socket head or hex socket head are generally used for the driven part of the hex driver.

A security (vandal proof) version of the hex key head includes a pin in the centre. These fasteners are said to have a "centre pin reject" feature to prevent standard hex wrenches from working. A special vandal proof hex driver must be used to fasten or remove these fasteners. The TORX head's security variant also has such a pin for the same reason.

Ball end allen keys are the most common tool of the toolmaker. Obviously only the best allen keys are viable for a tradesman, renowned brands are a must. So many cheap inferior copies are avail, that break & damage components. For a few extra dollars, good quality allen keys are worth it.


Allen Keys 07.jpg

    Some hex keys have a ball on one end, which allows the tool to be used at an angle off-axis to the screw. This type of hex key was invented in 1964 by the Bondhus Corporation, and is now manufactured by many other allen key manufacturing companies.
While providing access to otherwise inaccessible fasteners, thinning of the tool shaft to create the ball shape renders it weaker than the straight-shaft version, limiting the torque that can be applied. The tool also makes point contact with the fastener as opposed to the line contact seen in the straight style tools.


TORX KEYS


Allen Keys 08.jpg  Allen Keys 09.jpg

A popular generic name for the torx key drive is star, as in star screwdriver or star bits. The official generic name, standardized by the International Organization for Standardization as ISO 10664, is hexalobular internal. This is sometimes abbreviated in databases and catalogs as 6lobe (starting with numeral, 6, not a capital letter, G). Torx Plus is an improved head profile.
Torx screws are commonly found  on automobiles, motorcycles, bicycle brake systems (disc brakes), hard disk drives, computer systems and consumer electronics. Initially, they were sometimes used in applications requiring tamper resistance, since the drive systems and screwdrivers were not widely available; as drivers became more common, tamper-resistant variants, as described below, were developed. Torx screws are also becoming increasingly popular in construction industries.  Security Torx, Tamper-Resistant Torx to prevent unskilled or unauthorised people getting at them.
 

Allen Keys 10.jpg  
   


Torx key head sizes are described using the capital letter "T" followed by a number ranging from T1 to T100. A smaller number corresponds to a smaller point-to-point dimension of the screw. Common sizes of torx keys are include T10, T15, and T25, while T5.5, T35, and T47 tend to see specialized use. Only the proper torx driver can drive a specific head size without risk of damaging the torx driver or screw. The same series of Torx drivers is used to drive SAE, metric and other thread system fasteners, reducing the number of bit sizes required.
The "external" variants of Torx head sizes (see below) are described using the capital letter "E" followed by a number ranging from E4 to E44. The "E" numbers are different from the "T" numbers of the same size: for example, an E4 Torx socket fits a T20 head.


Properties of various Torx drives

 

Size

Point-to-point distance

Maximum torque range

~ E Torx


(in)

(mm)

(lb·ft)

(N·m)


T1

0.031

0.81

0.01–0.02

0.02–0.03

 


T2

0.036

0.93

0.05–0.07

0.07–0.09

 


T3

0.046

1.10

0.10–0.13

0.14–0.18

 


T4

0.050

1.28

0.16–0.21

0.22–0.28

 


T5

0.055

1.42

0.32–0.38

0.43–0.51

E2


T5.5

 

 

 

 

 


T6

0.066

1.70

0.55–0.66

0.75–0.90

 


T7

0.078

1.99

1.0–1.3

1.4–1.7

 


T8

0.090

2.31

1.6–1.9

2.2–2.6

 


T9

0.098

2.50

2.1–2.5

2.8–3.4

 


T10

0.107

2.74

2.7–3.3

3.7–4.5

 


T15

0.128

3.27

4.7–5.7

6.4–7.7

 


T20

0.151

3.86

7.74–9.37

10.5–12.7

E4


T25

0.173

4.43

11.7–14.0

15.9–19

E5


T27

0.195

4.99

16.6–19.8

22.5–26.9

 


T30

0.216

5.52

22.9–27.6

31.1–37.4

E6


T35

 

 

 

 

 


T40

0.260

6.65

39.9–48.0

54.1–65.1

E8


T45

0.306

7.82

63.4–76.1

86–103.2

 


T47

GM-Style

 

 

 

 


T50

0.346

8.83

97.4–117

132–158

E10


T55

0.440

11.22

161–189

218–256

E12


T60

0.519

13.25

280–328

379–445

E16


T70

0.610

15.51

465–516

630–700

E18


T80

0.690

17.54

696–773

943–1048

E20


T90

0.784

19.92

984–1094

1334–1483

 


T100

0.871

22.13

1359–1511

1843–2048

E24



 




 

Screw drive types

Allen Keys 21.png

Slot

Allen Keys 12.png

Phillips
PH

Allen Keys 13.png

Pozidriv (SupaDriv)
PZ

Allen Keys 14.png

Frearson

Allen Keys 15.png

Square

Allen Keys 16.png

Robertson

Allen Keys 17.png

Hex

Allen Keys 18.png

12-point flange

Allen Keys 19.png

Hex socket (Allen)

Allen Keys 20.png

Security hex socket (pin-in-hex-socket)

Allen Keys 21.png

Torx
T & TX

Allen Keys 22.png

Security Torx
TR

Allen Keys 23.png

TA

Allen Keys 24.png

Tri-Wing

Allen Keys 25.PNG

Torq-set

Allen Keys 26.PNG

Spanner head
(pig nose)
TH

Allen Keys 27.png

Clutch
A & G

Allen Keys 28.png

One-way

Allen Keys 29.png

Double-square

Allen Keys 30.png

Triple-square
XZN

Allen Keys 31.png

Polydrive

Allen Keys 32.png

Spline drive

Allen Keys 33.png

Double hex

Allen Keys 34.png

Bristol

Allen Keys 35.png

Pentalobe