Enamel Pin Backing Types Compared: Rubber vs. Metal Clasps
By Infinite Black - Elder Dice, Vast Grimm, and Unique RPG | Published: 2026-10-16
Category: Confronti
Rubber clutches are easy to remove and swap; metal clasps grip harder and resist sliding. Here's how each backing type behaves on shirts, lanyards, and backpacks.
Quick answer
For everyday wear, rubber clutches are the easiest to remove and reposition, while metal butterfly clasps grip harder and slide less on thick fabric. If you wear a pin on a backpack or lanyard where it gets bumped, a metal or locking clasp is the safer default. Match the backing to how often you move the pin, not to how it looks on the card.
How each backing type actually behaves
Rubber clutches are the black or colored rubber caps that push onto the pin post. They hold by friction, come off with a firm pull, and are the easiest to swap between garments. The trade-off is that repeated removal loosens the rubber, and on thin or silky fabric a rubber clutch can rotate or slide.
Metal butterfly clasps use two spring-loaded wings that bite into the post. They hold tighter and resist sliding better than rubber on denim, canvas, and lanyard webbing, but they are fussier to remove and can scratch a fingernail if you pry them wrong. Locking pin backs are a third option: a metal or plastic body with a set screw or slide that clamps the post, which is the most secure but the slowest to take off.
Where the backing choice matters most
On a shirt, the fabric is thin and moves, so rubber clutches are usually fine and let you reposition a pin without tools. On a backpack, lanyard, or gaming bag, the pin gets rubbed against straps and tables, so a metal butterfly or locking back reduces the chance of losing the pin. If you display pins on a board or cork strip, the backing barely matters because the pin is not under load; pick whatever is easiest to remove.
Replacing a backing without damaging the pin
Backings are replaceable, and swapping one is a normal part of pin ownership rather than a sign of a defect. Match the replacement to the post diameter, since a clutch sized for a thin post will not grip a thicker one. When removing a stubborn metal clasp, support the pin head with one hand and pull the clasp straight back rather than twisting, which can bend the post. If a rubber clutch has stretched, replacing it is faster than trying to tighten it.
Backing trade-offs at a glance
- Rubber clutch: Easy to push on and pull off, which makes it the best choice for pins you move between shirts or rotate on a display board. Trade-off: loosens with repeated removal and can slide on thin fabric.
- Metal butterfly clasp: Spring wings grip the post harder, so the pin stays put on denim, canvas, and lanyard webbing where a rubber clutch might rotate. Trade-off: slower to remove and easier to fumble if you swap pins often.
- Locking pin back: A set screw or slide clamps the post for the most secure hold, which suits a backpack or bag that gets knocked around. Trade-off: the slowest to take off, so keep it for pins that stay in one place.
Product facts that affect backing choice
- Unspeakable Tomes Complete Collectable Enamel Pin Set: This set contains all three Lovecraftian designs from the Unspeakable Tomes: the Sigil of the Dreamlands, the Yellow Sign, and the Mark of the Necronomicon. Three pins worn together on one bag or lanyard multiply the chance of a lost pin, so a firmer clasp is worth considering if you wear the full set at once.
- Elder Sign Sticker - White Vinyl Decal: This white vinyl decal sticker measures approximately 3 inches wide by 3 inches tall and comes individually wrapped. If you would rather not deal with clasps at all, a flat decal covers the same display space on a car, gaming chest, or case with no post to secure.
- The Grimm d2 Coin: This sci-fi coin features The Grimm symbol with a "1" on one side and the Würm symbol with a "2" on the other. A pocket coin has no backing to choose, which makes it a useful comparison point when you want table gear that never needs a clasp.
Which backing should you pick?
Best for
- Pins you rotate between shirts, lanyards, and display boards
- Wearers who want to remove a pin quickly without tools
- Thin or delicate fabric where a lighter grip is enough
Not for
- Backpacks and bags that get rubbed against straps and tables
- Pins worn on thick canvas or denim where sliding is a concern
- Anyone who has already lost a pin to a loose clutch
