330PCS haisstronica Heat Shrink Butt Connectors-Marine Grade Waterproof Electrical Crimp Wire Connectors Kit-Tinned Red Copper Insulated, for Boat,Truck,Stereo,Joint(4Colors/4Sizes)

I love that somebody puts these out. I can be a little OCD when I’m wiring things up, the heat shrink makes them look so much neater and keep them waterproof. They work great, hold up well, have a solid connection, saves me time by cutting out the additional heat tube I would normally use. Just a great product.

Buy these all the time for work. Great price, work good.

I've purchased a half dozen kits that are advertised to be heat shrink connectors and the plastic either burns before it shrinks or doesn't shrink enough to seal the connector from the environment. These are the best I've found and a quarter the cost of the ones from the big vox stores. The sizes are true to gage. I use a small dab of dielectric/no-ox on the wire before crimping and it squeezes out when heated for a nearly waterproof connection. On marine applications I still use adhesive exterior grade heat shrink over the whole thing but that's probably overkill. Would highly recommend for their quality, ease of use, and ability to seal out the environment and hold wire tight. No complaints here.

Another outstanding value. Quality and good price.

So far, great. Only used 3 of them so far, but they seem every bit reliable as auto parts stores. Can’t believe I went to AutoZone and paid $30 for 10, went home and found these on Amazon with 80 of them for not even half the price of AutoZone for 10. The quality is as good, so it’s hard to say no. I try very hard to shop local businesses and keep brick and mortar alive, but they’re not making it easy with ridiculous mark ups for profit.

I really like these, definitely a must have to keep around the shop.Easy to crimp and get a secure connections. Shrink very well to seal down tight against the wire.

These are fantastic crimps. Buy the hassitronica crimp tool. Bought some ring terminal crimps from another brand and they included some butt crimps. All of them were low quality, weak crimps that didnt hold. These crimp solidly and the shrink wrap really holds the wire in place. I havent measured ohms across them but they seem to make solid connections. I am using them on an aem twin fire cdi igntion system which draws lots of power without issue as well as every other connection on my project car. Great value, will purchase again once I run out as I am on my second set already.

If crimped properly these work great!!