Try CW Fasteners for Threaded Products

Spanner and Key Sizes for Common Fasteners

Spanner & Hex Key Sizes for Sets/Bolts and Socket Caps

Size

Spanner Size

Hex Key Size

M8

13mm

6mm

M10

17mm

8mm

M12

19mm

10mm

M14

22mm

12mm

M16

24mm

14mm

M18

27mm

14mm

M20

30mm

17mm

M24

36mm

19mm

We have a full range of spanners, sockets, keys, wrenches, and drivers always in stock!

We also keep a wide range of ancillary products such as taps and dies, threadlock (various types), abrasives and lubricants.