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 Silver Locking Pin Back | Metal Holder Clasp Lock Backings,Replacement with 8mm Length 4mm Width Blank Pins for Brooch Lapel Enamel Craft Making Badges

Product ID: 44346483

Details

Brand
JANYUN
Color
Silver
Item Weight
0.07 Kilograms
Material
Brass Silver
Style
Versatile

🔒Secure spring fastener lock

⚖️Lightweight yet durable brass

🛠️No tools needed, effortless install

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Description

🔗 Lock in style, unlock your creativity!

EFFORTLESS SNAP ON OFF - Spring-loaded butterfly clutch backs make pin replacement a breeze—no tools, no hassle.
DURABLE NICKEL PLATED BRASS - Sturdy, corrosion-resistant material ensures your pins stay secure and looking sharp.
UNIVERSAL USE ACROSS STYLES - Ideal for tie tacks, badges, name tags, jewelry making, and more—your go-to pin back solution.
PRECISION FIT FOR VERSATILITY - 8mm length and 4mm width pins perfectly fit most lapel pins, tie tacks, and brooches.
BULK PACK FOR UNLIMITED CREATIVITY - 120 pairs give you endless DIY crafting potential or professional pin maintenance.

JANYUN offers 120 pairs of silver nickel-plated brass butterfly clutch pin backs, sized 8mm by 4mm, designed for easy, tool-free installation and secure fastening. Perfect for professionals and crafters alike, these durable, lightweight replacements ensure your pins stay firmly in place across a wide range of applications.

Specifications

ASIN	B072B9XGZ4
Best Sellers Rank	#1,827 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #6 in Jewelry Making Pin Backs
Brand Name	JANYUN
Color	Silver
Customer Reviews	4.6 4.6 out of 5 stars (5,001)
Finish Type	Glossy
Item Type Name	Pin backs
Item Weight	0.07 Kilograms
Manufacturer	JANYUN
Manufacturer Part Number	ON01
Material Type	Brass, Silver
Model Number	DGKK
Number of Pieces	120
Product Style	Versatile
UPC	056312671964
Warranty Description	Manufacturer Warranty for 90 days from date of purchase
Wire Diameter	4.5 Millimeters

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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11006CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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