Can I craft Spikes and other fist weapons for a Monk?

My blacksmith is at Level 3 (Adept) and I don't see fist weapons that I can craft.

Will be able to craft any fist weapons later? If so, what are the requirements?

Solution 1:

Yes, you can craft fist weapons later, just continue upgrading your blacksmith. In fact the first fist weapon is available from level 3 - which is what you have - so you're only a few upgrades away from it (remember each level has multiple inner sublevels, each unlocking its own recipes).

Here is a full list of all craftable fist weapons along with their level requirement, blacksmith's level requirement, and component list. To summarize the level requirements:

Name                         Character level   Blacksmith level
Adept Shuko                  24                 3
Grand Master Knuckles        35                 5
Demon Hand                   52                 7
Resplended Demon Fang        59                 8
Hallowed Touch               60                 4 (requires plan)
Exalted Fine Golden Talon    60                10 (requires plan)
Exalted Golden Talon         60                10 (requires plan)
Exalted Grand Golden Talon   60                10 (requires plan)

Solution 2:

You will need to acquire Plans to build more advanced items. The plans are just like molds you find in other games or a item required to make a specific weapon/piece of armor, (which they left out there is legendary armorsets that require molds to create along with a mold required to make the weapon for a complete set bonus)).

I have not found any yet but I know they are out there. You don't start getting the blacksmith scrolls until nightmare difficulty, you may be able to get it in normal, I did not though.