If you are not sure that you understand the information below.
PLEASE DON'T ORDER. ASK FIRST-DON'T COMPLAIN LATER
THAT YOU'VE GOT THE WRONG SIZE
Ten pieces.Size refers to the diameter of the bolt shaft not the size of the head or the allen key that fits it.New but no retail packaging.
If you want a mixed set of 10  i.e. M6 x3 +M8 x3 +M10 x4. Purchase a set of the largest size chosen (i.e. M10) and include a message on the checkout page of your requirements
Combined postage discount is applied automatically . 
If you wish to purchase more than one size you will need to put the items in your basket and check them all out in one transaction to get combined postage.

PLEASE NOTE; SIZING ONLY APPLIES TO STANDARD CAP HEAD BOLTS (photo 2).BUTTON HEAD BOLTS (photos 4+5) MAY NEED A SMALLER CAP (use the allen key size guide below)n.b. some bolts use a smaller allen key than standard.So it is best to go by the size of the hole and match the spigot size to it
rough size guide of caps.

Cap size                         Head diameter                   Spigot diameter (the sticky out bit or pin that goes in the hole)
  M10                                     14mm                                   8mm
  M8                                       11.5mm                                6mm
  M6                                        9.5mm                                 5mm
  M5                                        8mm                                    4mm
  M4                                        6mm                                    3mm 

If you use a 3mm allen key you need M4 caps
If you use a 4mm allen key you need M5 caps
If you use a 5mm allen key you need M6 caps
If you use a 6mm allen key you need M8 caps
If you use a 8mm allen key you need M10 caps