What's a good glue to secure these onto plastic or metal? Super glue isn't working well enough.

I sometimes use E6000 glue. It's not a instant bond glue, but it's very strong. I recommend small tubes of the glue so you don't have to worry about it drying out in the tube. I also like to roughen up the back of the pin pads with some sandpaper for extra grip.

Will these work for needle felt brooches? I'm thinking they would make the brooch easier to attach to clothing. Standard brooch pins can be tricky

Assuming a felt backer, i would say Yes, if poked thru the backer and secured prior to the backer being affixed to the Brooch. with this in mind, a tack pin with a larger, maybe 10mm head, and a longer shank might work better. These Tack shanks have a 4.5mm head on a 8mm long shank. something with a 10mm head on a 8-10mm shank might work better, as most felt is 2-3mm thick. this is dependent on the backer material you use of course...

Do these tacks leave holes in the fabric once they're removed? Tack pins I have used before have damaged the fabric.

I believe it depends on the fabric. I used a satin/polyester blend and it did leave holes in my material.

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JANYUN 120 Pairs Butterfly Clutch Tie Tacks Safty Secure Pin Back

Product ID: 319046949

Details

Brand
JANYUN
Color
Gold
Item Weight
0.1 Kilograms
Material
nickel-plated
Style
Versatile

📏8mm length x 4mm width pins

🦋120 pairs butterfly clutch backs

🛡️nickel-plated brass, durable & secure

€ 14.71

Duties & taxes included

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🦋 Lock in style and craft your legacy with every pin!

EFFORTLESS SNAP ON SECURITY - Spring-loaded butterfly clutch backs lock pins firmly without tools—easy install & removal for busy pros.
PREMIUM NICKEL PLATED BRASS - Sturdy yet lightweight metal ensures long-lasting durability and a sleek gold finish that elevates your craft.
MULTI PURPOSE CRAFT ESSENTIAL - Ideal for DIY enthusiasts and professionals alike—perfect for badges, citation bars, service pins, and personalized accessories.
PRECISION SIZED FOR VERSATILITY - Compact 8mm x 4mm pins fit perfectly for tie tacks, badges, lapel pins, and custom jewelry projects.
BULK PACK FOR UNLIMITED CREATIVITY - 120 pairs in one set means you’re always ready to replace or create—never run out mid-project again.

JANYUN’s 120-pair butterfly clutch tie tacks feature spring-loaded, nickel-plated brass backs and 8mm x 4mm gold pins designed for secure, tool-free installation. Perfect for professionals and crafters, this bulk set offers durable, versatile components ideal for tie tacks, badges, lapel pins, and custom jewelry, ensuring your creations stay firmly in place with a polished finish.

Specifications

ASIN	B093SS61SQ
Best Sellers Rank	#2,632 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #7 in Jewelry Making Pin Backs
Brand	JANYUN
Brand Name	JANYUN
Color	Gold
Customer Reviews	4.6 out of 5 stars 5,119 Reviews
Finish Type	Unfinished
Item Highlight	Gold Holder Clasp Lock Backings,Replacement with 8mm Length 4mm Width Blank Pin for Brooch Lapel Enamel Craft Making
Item Type Name	Pin backs
Item Weight	0.1 kg
Manufacturer	JANYUN
Manufacturer Part Number	2
Material	nickel-plated brass
Material Type	nickel-plated brass
Model Number	1
Number of Items	120
Number of Pieces	240
Product Style	Versatile
Style	Versatile
Unit Count	240 Count
Warranty Description	Manufacturer Warranty for 90 days from date of purchase

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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€ 14.71

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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