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These metal wedge shims are an 8-piece set of carbon steel wedges, each about 4 x 0.8 x 0.5 in, sold for leveling and packing machinery and equipment. This metal wedge shims review is based on the Amazon listing, not on hands-on testing.
They are worth considering if you need small steel wedges to level a machine base, support a welding table leg or set a gap during fit-up. Skip them if you need a precise stepped pipe wedge or a rated load-bearing leveling product, because these are plain wedges with no published load rating.
Metal wedge shims: quick specs at a glance
| Item | Details |
|---|---|
| Product type | Steel wedge shims, 8-piece set |
| Size each (per listing) | About 4 x 0.8 x 0.5 in |
| Material (per listing) | Carbon structural steel |
| Described uses (per listing) | Leveling and packing machinery, equipment and mold parts |
| Load rating | Not stated in the text we reviewed |
Always confirm dimensions on the listing before ordering. Because no load rating is given, do not use these as the only support for heavy equipment.
What wedge shims are and who they suit
A wedge shim is a tapered piece of metal. Sliding it between two surfaces fills a gap and lets you raise or lower something a small amount by pushing it in or out. Steel wedges tolerate more pressure than plastic or wood and are not hurt by shop oils.
In a welding or fab shop they suit leveling a bench or machine base, packing under a frame, setting a root gap or tightening a loose fit before tacking. They suit hobbyists and small-shop users.
How to check they fit your job
- Taper and thickness: a 0.5 in thick end is the maximum height. Measure your gap; a wedge only fills up to its thickest point.
- Length of contact: the 4 in length gives a gentle taper, but you need enough surface contact to avoid point loading.
- Load: heavy machinery should sit on rated leveling feet or pads; use wedges for fine adjustment.
- Surface: steel on steel can slip. For a smooth floor, add a flat plate.
- Count: eight wedges allows you to use pairs for a more stable, parallel packing.
Pros and limitations
Pros
- Steel is stiff and does not crush like plastic.
- Small size works in tight spaces.
- Useful as a generic fit-up and leveling aid.
- Tolerate the heat of tack welding better than plastic or wood shims, though the listing does not state a temperature limit.
Limitations
- No stated load capacity.
- Tapered steel can slip or kick out if misaligned.
- Carbon steel can rust; keep them oiled.
- If tacked into the joint by accident, they can weld to the part, so remove them before running the final weld.
How to use wedges safely
- Clean both surfaces so the wedge sits flat.
- Use two wedges facing opposite directions (a pair) to make a parallel packer.
- Tap in lightly with a hammer. Do not hammer hard on a machine base.
- Check level with a spirit level after each tap.
- For heavy gear, never rely on wedges alone; support the load with a rated stand or leveling foot.
Wear gloves; sharp edges and hammer use can injure hands. Do not work under unsupported loads.
Alternatives and related guides
- B and B stepped pipe wedge review – a pipe-specific wedge for alignment and gaps
- Pipe alignment clamp review – holds pipe in line during fit-up
- Welding table clamps review – secure parts on a table once they are shimmed
Frequently Asked Questions
What are metal wedge shims used for?
They fill small gaps and level equipment by sliding between two surfaces. Welders use them to adjust fit-up gaps, level frames and tables, and support parts before tacking.
Can these support heavy machines?
The listing gives no load rating. Use them for fine leveling only, and support heavy machinery with rated leveling feet or pads. Never stand under a load held only by wedges.
Can I weld near the shims?
Steel wedges tolerate shop heat better than plastic or wood, but they can weld to the work if tacked or hit by spatter. Remove them before final welding unless you plan to leave them.
How do I stop them from rusting?
Wipe them clean after use and store them with a thin film of oil in a dry place. Light surface rust can be wire-brushed off before reuse.
Final verdict
This set is a simple, affordable pack of steel wedges for leveling and fit-up. Check the maximum thickness against your gap, work in pairs, and use proper rated supports for any heavy equipment.
