Question 1

How do I know what size end cap to buy?

Accepted Answer

Measure your cord's diameter, then choose an end cap with an inner diameter (ID) that matches or is just slightly larger. A 2mm leather cord wants a 2mm or 2.5mm ID cap; a 6mm kumihimo braid wants a 6mm ID. If the ID is too small the cord won't seat; too large and it slips out even when glued. Most listings state both ID and outer diameter, with 4-12mm OD typical, so check the ID number first.

Question 2

What glue works best for glue-in end caps?

Accepted Answer

Use a strong jeweler's adhesive such as E6000 or two-part epoxy, not white craft glue or hot glue. Put a few drops inside the barrel, let it get tacky for several seconds, push the cord in with a slight twist, then set it aside to cure. E6000 grabs in minutes but reaches full strength at about 24 hours. For kumihimo, fray-check the braid end first so it stays compact inside the cap.

Question 3

What's the difference between glue-in caps and crimp cord ends?

Accepted Answer

Glue-in barrel caps are tubes you slide over round cord, leather, or braid and secure with adhesive. Crimp or fold-over ends are open clamps you squeeze shut with flat-nose pliers, ideal for flat leather, ribbon, or suede lace. Glue-in caps give the cleanest look on round cording and kumihimo; crimp ends are faster and need no cure time. Many makers stock both so you can match the cord profile.

Question 4

How do end caps connect to a clasp?

Accepted Answer

Most end caps have a built-in loop or ring at the closed end. Once the cap is set on your cord, open a jump ring, thread it through that loop and your lobster or toggle clasp, then close the jump ring with two pliers. Some caps arrive pre-assembled with the clasp attached. For heavier pendants, use a soldered or thick-gauge jump ring so the loop can't pull open under weight.

Question 5

What metals do end caps come in, and which lasts?

Accepted Answer

Common options are brass, antiqued brass, stainless steel, and silver- or gold-plated pewter or zinc alloy, with sterling silver available for fine work. Stainless steel and solid brass resist tarnish best for everyday or sweat-exposed pieces. Plated caps look great but can wear at the edges over a year or two. For nickel-sensitive wearers, choose stainless steel, sterling, or caps labeled nickel-free.

Question 6

How much do end caps cost?

Accepted Answer

A mixed assortment pack of 20-100 base-metal end caps usually runs $5-$15, the economical route for prototyping or tassel making. Individual sterling silver or solid brass caps cost $2-$8 each depending on size and detailing, and decorative filigree or hand-stamped caps sit at the top of that range. Buying an assorted-ID kit first lets you match cords before committing to one size in bulk.

End Caps for Cord & Kumihimo Jewelry

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