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

⚡Tin-plated red copper for max conductivity

🔌315pcs complete kit

🧰3 terminal sizes: 2.8mm, 4.8mm, 6.3mm

$36.01

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Connect Fast, Last Long, and Never Miss a Beat!

USER FRIENDLY DESIGN - Quick male-female splice connectors with insulating nylon sleeves make wiring fast, safe, and foolproof.
VERSATILE SIZE RANGE - Includes 2.8mm, 4.8mm, and 6.3mm terminals compatible with AWG 22-14 wires for ultimate flexibility.
WIDE APPLICATION SPECTRUM - Perfect for automotive, marine, home appliances, and audio systems—connect like a pro everywhere.
ALL IN ONE WIRING SOLUTION - 315-piece assortment covers every quick splice need for pro-grade projects.
PREMIUM CONDUCTIVITY DURABILITY - Tin-plated red copper terminals resist oxidation and ensure long-lasting, efficient connections.

The Glarks 315Pcs Quick Splice Wire Connector Kit features tin-plated red copper spade terminals in three sizes (2.8mm, 4.8mm, 6.3mm) paired with durable nylon insulating sleeves. Designed for quick, reliable male-female connections, this comprehensive kit supports AWG 22-14 wires and is ideal for automotive, marine, and household electrical projects, ensuring high conductivity and corrosion resistance in a neatly organized plastic case.

Specifications

ASIN	B07FCFH84Q
Best Sellers Rank	#55,683 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #70 in Spade Terminals
Brand Name	Glarks
Color	Silver
Connector Gender	Both
Connector Type	Crimp
Contact Material	Copper
Customer Reviews	4.4 out of 5 stars 1,963 Reviews
Insulation Material	Nylon
Insulation Material Type	Nylon
Manufacturer	Glarks
Material	Plastic
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
Wire Diameter	2.8 millimeters

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