Best Micro Adjustable Shaft Collars

4 Pieces Jeremywell Solid Steel Zinc Plated Shaft Collar with 4 Black Oxide Finish Set Screws 5/8" Bore, 1-1/8" OD, 1/2" Width*Images for illustration purpose only Actual product may vary.
Reviews
Find Best Price at Amazon"These worked perfectly for replacing a garbage toter's wheels."
"Great quality!!"
"A little price though, the only reason we spent that much, it was the only collars with a 5/8” bore that we could find at the time."
"These were noted as an additional item when I purchased 10" Air Tires Wheels 5/8 and Stanley national hardware N179-812 bar."
"Works great!"
"Collars worked well and easy to install."
"Needed a spacer while replacing wheels on a dolly."

Package of four 3/4 inch zinc plated shaft collars.
Reviews
Find Best Price at Amazon"They fit perfectly on a 3/4" plated steel rod I ordered on Amazon to rebuild the axle on my wheelbarrow."
"Used to brace the axle to my deer cart."
"Apart from some of the screws not accepting the Allan key well, these do exactly what was wanted."
"Well made and do their job perfectly."
"Clear measurements made the product a perfect fit for our needs."
"As advertised."
"Extremely well-made and high-quality, I was surprised how heavy-duty they were."
"fast delivery and a good collar...as described..highly recommend this seller..thanks."

4 Pieces Jeremywell Solid Steel Zinc Plated Shaft Collar with 4 Black Oxide Finish Set Screws.
Reviews
Find Best Price at Amazon"Well Made, worked better then I thought they would."
"arrived quickly and were exactly as advertised."
"By far the best combination of price and quality for a locking shaft collar."
"These shaft collars are very high quality and fit perfectly on the 1/2" axle on the cart I am building."
"Exactly as advertised and very quick on delivery."
"Product was delivered on time and exactly what I was looking for."
Best Heat Shrinkable Shaft Collars

Insultab's Vivid Vinyl HS-2000 Weather Resistant PVC, Large Diameter Heat Shrink Tubing.
Reviews
Find Best Price at Amazon"I used this to cover a whip light of LEDs for an ATV."
"Used this to make 4 LED whips, worked well for sliding over and shrinking properly over 5/16" whip wrapped with 5050smd led strip as well as 3528smd led strips."
"Works great and shrinks as expected."
"Used it to make a lighted flag pole for a UTV."
"Great product."
"This tubing worked as it should with no issues."
"worked well for building an LED whip for my RZR."
Best Quick-Lock Shaft Collars

Specifications: Material: bearing steel,GCr15. Surface hard-thickness:0.8u~3mm. Hardness:HRC602. Outer diameter:5mm or 0.196 inch. Length:330mm.
Reviews
Find Best Price at Amazon"Its 5mm in diameter and 330 long but it is not straight."
Best Set-Screw Shaft Collars

The two basic types of shaft collars are clamping (or split) collars, which come in one- or two-piece designs, and setscrew collars. In setscrew collars, screws are tightened through the collar until they press directly against the shaft, and in clamping collars, screws are tightened to uniformly compress the collar around the shaft without impinging or marring it. Setscrew collars and one-piece clamping collars must be installed by sliding the collar over the end of the shaft, while two-piece clamping collars separate into two halves and can be installed between components on the shaft. Setscrew shaft collar for applications supporting low axial loads and simple positioning.
Reviews
Find Best Price at Amazon"The "elegant technical solution" Replaced some aggravating washer/cotter pin wheel/axle mounts on some 5/8 inch bore/OD axles."
"These seem to be much higher quality than I expected for the price."
"This was exactly what I needed to secure the wheels to a hand truck, which had come with the install-once style of pushnut retaining clips on the axles."
"Will be buying more."
"The hard steel of these collars actually damage the edges of the axles if you aren't careful, making it virtually impossible to get on after that."
"I was able to use it on two aftermarket tool rests though."
Best Clamp-On Shaft Collars

4 Pieces Jeremywell Solid Steel Zinc Plated Shaft Collar with 4 Black Oxide Finish Set Screws 5/8" Bore, 1-1/8" OD, 1/2" Width*Images for illustration purpose only Actual product may vary.
Reviews
Find Best Price at Amazon"These worked perfectly for replacing a garbage toter's wheels."
"Great quality!!"
"A little price though, the only reason we spent that much, it was the only collars with a 5/8” bore that we could find at the time."
"These were noted as an additional item when I purchased 10" Air Tires Wheels 5/8 and Stanley national hardware N179-812 bar."
"Works great!"
"Collars worked well and easy to install."
"Needed a spacer while replacing wheels on a dolly."