Changes

===Attachment===

There are two main ways of attaching arrowheads, socketed or tanged. Generally the socketed type was more common in England and the tanged, more common in Scandinavia.

* Socketed heads are glued onto the sharpened end of an arrow shaft

* Tanged heads are inserted into a hole drilled into the end of the arrow shaft. The tangs themselves tend to be about 2cm long. To reinforce the head they were sometimes bound in twine such as sinew or were wrapped in birch bark stuck on with tar. At Hedeby and Birka some of the tanged arrow heads were bound on with brass wire.

===Materials===

Arrows were usually of iron but it is possible that bone or simple fire hardened tips may have also been used (Manley 1985 p.223).