what is the advantages of the Insulating Sleeve not already being on the connector like most connectors

The connector has two different crimping areas one to crimp on the wire and one to crimp on the wires insulation. The portion to crimp on the insulation is pointed and you can’t get to if the insulating sleeve was in place. Also as in my case I soldered the wire to the connector which you can’t do if the insulation is in place. That’s why I prefer this type of connector, but it also works great either way.

can these be soldered?

Actually, Jared Lucey is NOT wrong. The question of whether to solder or not depends on the application (and possibly code/regulations depending on your industry). The logic is that, if the solder wicks up the copper strands inside the wire (which it often does) past the second stress relief crimp, the strands can not flex as they should and in an application subject to movement or vibration the conductor will eventually break inside the insulation causing an intermittent fault that may be VERY difficult to diagnose.

Are the sleeves heat shrinking?

I'd suggest using heat shrink instead of these pre-form rubber things as they slip off the terminal quite easily.

Can these be used to repair wiring in an oven or stove?

I would think yes, however not using the plastic shrouds of course!

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Glarks 315Pcs Quick Splice 2.8mm 4.8mm 6.3mm Male and Female Wire Spade Connector Wire Crimp Terminal Block with Insulating Sleeve Assortment Kit

Glarks 315Pcs Quick Splice 2.8mm 4.8mm 6.3mm Male and Female Wire Spade Connector Wire Crimp Terminal Block with Insulating Sleeve Assortment Kit

Product ID: 75362597

Details

Connector Type
Crimp
Contact Material
Copper
Insulation Material
Nylon
Material
Plastic
Terminal
Spade Terminal

⚡High conductivity tin-plated copper

🔥Heat-resistant nylon insulation

🧰315-piece all-in-one kit

€ 28.72

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Connect Like a Pro — Never Miss a Beat in Your Wiring Game!

BUILT TO LAST - Tin-plated red copper terminals resist oxidation and ensure reliable conductivity
SAFE DURABLE - Nylon insulating sleeves rated up to 257°F protect connections under high heat
PLUG PLAY EFFICIENCY - Quick splice design enables fast, secure connections for automotive, home, and audio projects
COMPLETE KIT ZERO HASSLE - Includes 210 male/female terminals plus 105 insulating sleeves in a sturdy organizer box
PRECISION FIT EVERY TIME - Three terminal sizes (2.8mm, 4.8mm, 6.3mm) for versatile wiring needs

The Glarks 315-piece Quick Splice Wire Terminal Kit features tin-plated red copper spade connectors in three popular sizes (2.8mm, 4.8mm, 6.3mm) paired with heat-resistant nylon insulating sleeves. Designed for quick, reliable crimp connections, this comprehensive assortment is perfect for automotive, home appliance, and audio system wiring, offering durability, high conductivity, and organized convenience in one compact kit.

Specifications

ASIN	B07FCFH84Q
Best Sellers Rank	#36,959 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Spade Terminals
Brand Name	Glarks
Connector Type	Crimp
Contact Material	Copper
Customer Reviews	4.4 4.4 out of 5 stars (2,618)
Insulation Material Type	Nylon
Manufacturer	Glarks
Material Type	Plastic
Model	GLLALDZ-315
Number of Items	1
Part Number	GLLALDZ-315
Temperature Rating	257 degree fahrenheit
Terminal	Spade Terminal
Unit Count	315 Count

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