Low Carbon Plain Steel SAE Flat Washers
What are low carbon plain steel SAE flat washers? Low carbon plain steel SAE flat washers are compact-pattern washers made from unplated low carbon steel that spread a fastener's load and protect the surface. The bare, economical finish suits assemblies that will be coated or painted, or where corrosion is not a concern in dry, interior use.
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When to use low carbon plain steel washers
Low carbon plain steel SAE washers are the economical, bare-finish choice for general-purpose load spreading in dry, interior work and in assemblies that will be painted or coated afterward. Low carbon steel is soft and ductile, suited to standard fastening rather than high-strength Grade 8 joints, where a thru-hardened washer is needed. The compact SAE pattern gives a tight fit. Because plain steel can rust in damp conditions, protect the assembly or choose a zinc plated or stainless washer for outdoor and wet use.
Why choose low carbon plain steel SAE washers
- Economical: the low-cost bare-steel washer for common jobs.
- Compact fit: SAE pattern suits tight clearances.
- Coat-ready: bare finish takes paint or coating well.
- General purpose: standard load spreading for interior work.
Common applications for low carbon plain steel SAE washers
- Assemblies painted or coated after build
- Dry, interior general fastening
- Automotive and machinery under Grade 5 bolts
- Tight-clearance interior work
For corrosion resistance, see zinc plated SAE flat washers, and browse every option on the main flat washers category.
Low Carbon Plain Steel SAE Flat Washers FAQ
Are plain steel washers good outdoors?
No. Low carbon plain steel can rust in damp conditions. Protect or coat the assembly, or choose zinc plated or stainless for outdoor use.
Are low carbon washers high strength?
No. Low carbon steel is soft and suits standard fastening. For Grade 8 high-strength joints, use a thru-hardened washer.
Why choose plain over plated?
Plain steel is economical and takes paint or coating well, making it a good choice for assemblies finished after build or where corrosion is not a concern.