Projection Hex Weld Nuts - Plain Steel
What are plain steel projection hex weld nuts? Plain steel projection hex weld nuts are hex nuts with small raised projections and a pilot that are resistance-welded to a metal part, forming a permanent threaded connection. Made from unplated steel, they are the economical choice for a strong, flush welded thread in dry, interior assemblies.
Sizes:
- Hex Weld Nuts Metric, 3 Projections With a Long Pilot, Plain Steel
- Hex Weld Nuts Metric, 3 Projections With a Short Pilot, Plain Steel
- Hex Weld Nuts Metric, 6 Projections With a Long Pilot, Plain Steel
- Hex Weld Nuts Metric, 6 Projections With a Short Pilot, Plain Steel
- Hex Weld Nuts, 3 Projections With a Long Pilot, Plain Steel
- Hex Weld Nuts, 3 Projections With a Short Pilot, Plain Steel
- Hex Weld Nuts, 6 Projections With a Long Pilot, Plain Steel
- Hex Weld Nuts, 6 Projections With a Short Pilot, Plain Steel
Why are weld nuts plain steel?
Projection weld nuts have small bumps on the base that concentrate the welding current so they melt and fuse the nut to the sheet under pressure, while a pilot boss centers the nut in a hole for accurate placement. Ours come with three or six projections and short or long pilots to match sheet thickness and strength needs, with more projections giving a stronger weld. Plain steel is the economical option and welds cleanly since there is no plating to interfere with the weld, which is why bare steel is standard for weld nuts. For corrosion resistance in the finished part, choose a stainless version or coat the assembly after welding.
Why choose plain steel projection hex weld nuts
- Permanent thread: welded directly to the part for a captive nut.
- Clean weld: bare steel welds without plating interference.
- Accurate placement: the pilot centers the nut in the hole.
- Economical: unplated steel for dry, interior assemblies.
Common applications for plain steel projection hex weld nuts
- Automotive and equipment fabrication
- Enclosures and sheet metal assemblies
- Structural sheet needing a permanent thread
- Interior welded assemblies
For corrosion resistance, see 18-8 stainless projection hex weld nuts, and browse every style on the main weld nuts category.
Plain Steel Projection Hex Weld Nuts FAQ
Why are weld nuts usually plain steel?
Bare steel welds cleanly, since plating can interfere with the weld and burn off in the heat. Plain steel is the standard, economical choice for welding.
What is the difference between three and six projections?
More projections spread the weld over more points for a stronger attachment. Six-projection nuts suit higher-strength or thicker-sheet joints, three-projection for lighter work.
Can I make plain steel weld nuts corrosion resistant?
Coat or paint the assembly after welding, or choose a stainless weld nut if the finished part will face moisture.