Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	304 Stainless Steel
Surface Finish	Polished
Thread Type	Threadless (Plain)
Available Sizes	M2, M3, M4, M5
Shape	Cylindrical Sleeve
Corrosion Resistance	High
Hardness	HV 200-250
Operating Temperature	-50°C to 150°C
Package Quantity	100 Pieces
Application	Machinery, Electronics, DIY

5 reviews

Anonymous

Mar 12, 2026

Rating: 5/5

Durable

Using these in a outdoor enclosure. So far no signs of corrosion despite humidity. Very satisfied.

Anonymous

Mar 10, 2026

Rating: 5/5

Highly Recommend

Very precise dimensions. I measured several with calipers and they were consistent across the batch.

Anonymous

Feb 27, 2026

Rating: 4/5

Good Quality

Solid spacers. Only giving 4 stars because the packaging was a bit flimsy, but the parts themselves are great.

Anonymous

Feb 13, 2026

Rating: 5/5

Great Value

Exactly what I needed for my electronics project. The finish is smooth and they slide onto bolts easily.

Anonymous

Feb 06, 2026

Rating: 5/5

Perfect Fit

Used these for my 3D printer frame. The tolerances are spot on and the steel quality is excellent. No rust after months of use.

5 FAQ

Q: Can I thread these myself?

A: Yes, they are threadless inserts designed to be used as plain bushings or spacers.

Q: Are they suitable for saltwater environments?

A: 304 steel has good corrosion resistance, but 316 is recommended for direct saltwater exposure.

Q: Are these magnetic?

A: 304 stainless steel is generally non-magnetic or slightly magnetic depending on work hardening.

Q: Do you offer custom lengths?

A: Currently we stock standard lengths, but bulk custom orders may be available upon request.

Q: What is the inner diameter tolerance?

A: The standard tolerance is H7 for precise fitting.

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