Anonymous
Apr 08, 2026
Rating: 5/5
Solid Construction
These bushings are exactly as described. The steel quality is high and they fit my M4 bolts perfectly.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | 304 Stainless Steel |
| Product Type | Cylindrical Sleeve Bushing |
| Thread Style | Threadless (Smooth Bore) |
| Surface Finish | Polished |
| Inner Diameter Options | M2, M3, M4, M5 |
| Outer Diameter Tolerance | ±0.05 mm |
| Length Tolerance | ±0.1 mm |
| Hardness | HV 200-250 |
| Package Quantity | 10 Pieces per Pack |
| Recommended Application | Mechanical Assembly, Electronics, DIY Projects |
Anonymous
Apr 08, 2026
Rating: 5/5
Solid Construction
These bushings are exactly as described. The steel quality is high and they fit my M4 bolts perfectly.
Anonymous
Apr 07, 2026
Rating: 4/5
Good but tight
Quality is good but the inner diameter was slightly tight on my M3 screws. Still usable.
Anonymous
Feb 10, 2026
Rating: 5/5
Great for Robotics
Used these on my robot arm joints. No wear after weeks of testing.
Anonymous
Jan 28, 2026
Rating: 5/5
Excellent Value
Cheap price for genuine 304 steel. Very happy with this purchase.
Anonymous
Jan 27, 2026
Rating: 3/5
Packaging Issue
The product is fine but the bag arrived open. Lost two pieces.
Q: Do you offer bulk discounts?
A: Please contact customer service for inquiries regarding bulk orders.
Q: Can these be threaded later?
A: We do not recommend threading as the wall thickness may be insufficient.
Q: What is the exact length of the M4 size?
A: Please refer to the size chart image for specific length measurements per size.
Q: Are these suitable for outdoor applications?
A: Yes, 304 stainless steel provides good rust resistance for outdoor use.
Q: Is the inner surface smooth?
A: Yes, the inner bore is polished to reduce friction.