Coarse Thread

Thick, rough thread. Used in the creation of low-level Tailoring and Leatherworking items.

Source
Coarse Thread can be bought from any number of trade goods vendors for each.

Coarse Thread as an ingredient
Coarse Thread is used in the following recipes:

Leatherworking

 * Embossed Leather Boots
 * Embossed Leather Cloak
 * Embossed Leather Gloves
 * Embossed Leather Pants
 * Embossed Leather Vest
 * Fine Leather Belt
 * Fine Leather Boots
 * Fine Leather Gloves
 * Fine Leather Tunic
 * Handstitched Leather Belt
 * Handstitched Leather Boots
 * Handstitched Leather Bracers
 * Handstitched Leather Cloak
 * Handstitched Leather Pants
 * Handstitched Leather Vest
 * Hillman's Leather Vest
 * Kodo Hide Bag
 * Light Leather Bracers
 * Light Leather Quiver
 * Medium Armor Kit
 * Moonglow Vest
 * Rugged Leather Pants
 * Small Leather Ammo Pouch
 * White Leather Jerkin

Tailoring

 * Blue Linen Robe
 * Blue Linen Shirt
 * Blue Linen Vest
 * Brown Linen Pants
 * Brown Linen Robe
 * Brown Linen Shirt
 * Brown Linen Vest
 * Green Linen Bracers
 * Heavy Linen Gloves
 * Linen Bag
 * Linen Belt
 * Linen Boots
 * Linen Cloak
 * Red Linen Robe
 * Red Linen Shirt
 * Red Linen Vest
 * Reinforced Linen Cape
 * Simple Dress
 * Simple Linen Boots
 * Simple Linen Pants
 * White Linen Robe
 * White Linen Shirt

Coarse Thread as a quest item
Coarse Thread is needed for the following quests: