Standard Parts

Expansion Plugs
Core / Cup Plugs
- Spring Lock Series
  - English Sizes
  - Metric Sizes – DIN 443
- Small Hole / Precision Series
  - English Sizes
  - Metric Sizes
Spring Washers
Compression Limiters

Custom Parts

Fourslide Stampings
Stampings
Springs
Wireforms
Tubing
Assemblies

Home / Core / Cup Plugs / Spring Lock Series / English Sizes

English Sizes

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Core Hole Plugs – SAE 1008/1010 Steel
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Core Hole Plugs – 304 Stainless Steel
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Providing Innovative Engineering and Manufacturing Solutions Since 1905

Since 1905, Hubbard Spring has been a manufacturer of a broad range of standard and custom parts made from strip, wire, and tube. We produce standard product lines of expansion plugs, spring tension washers, hair pin cotters, as well as custom stampings, slide formed components, wire forms, and all types of springs.

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Expansion Plugs
Ground Expansion Plugs
Welch Plug Counterbore Tool
Spring Lock Series
Small Hole / Precision Series

Curved Washers
Wave Washers
Disc (Belleville) Washers
Slotted Washers

Wireforms
Tubing
Assemblies
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595 S. Lapeer Rd., P.O. Box 425
Oxford, MI 48371

Ph: 248-628-2528 • Fx: 248-628-7734

Standard Parts

Custom Parts

Core Hole Plugs – SAE 1008/1010 Steel

Core Hole Plugs – 304 Stainless Steel