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 kg
Material
Brass Silver
Style
Versatile

🔩120 pairs for bulk creativity

⚙️Durable nickel-plated brass

🛡️Secure locking spring fastener

2365 som

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Description

🦋 Lock in style and never lose your edge!

PRECISION FIT - 8mm length and 4.5mm diameter pins designed to perfectly fit most lapel pins, brooches, and badges.
PREMIUM DURABILITY - Crafted from nickel-plated brass for a glossy finish that resists wear and keeps your creations looking sharp.
BULK CREATIVE POWER - 120 pairs of silver butterfly clutch backs to fuel your DIY projects and professional crafts without running out.
EFFORTLESS SECURITY - Spring-loaded locking mechanism ensures your pins stay firmly in place—no slips, no worries.
VERSATILE CRAFTING ESSENTIAL - Ideal for tie tacks, lapel pins, badges, and custom enamel crafts—your go-to for professional-grade pin back replacements.

JANYUN offers 120 pairs of silver butterfly clutch tie tacks made from durable nickel-plated brass, featuring an 8mm length and 4.5mm diameter pins with a secure spring fastener. Perfect for lapel pins, brooches, badges, and DIY crafts, these glossy, easy-to-use pin backs provide reliable grip and professional finish for all your creative and formal needs.

Specifications

ASIN	B072B9XGZ4
Best Sellers Rank	#1,900 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #5 in Jewelry Making Pin Backs
Brand Name	JANYUN
Color	Silver
Customer Reviews	4.6 4.6 out of 5 stars (5,024)
Finish Type	Glossy
Item Type Name	Pin backs
Item Weight	0.07 kg
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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2365 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

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