Engineering Data

Below you will find a wealth of engineering data relating to all aspects of our products, including material characteristics, properties, thicknesses, finishes and workmanship acceptance standards.

Dimensioning Symbols
Finish Abbreviations
Material Characteristics—Non-Metals
Material Characteristics—Metals
Material Finish Characteristics
Material & Finish Specifications
Metric Conversion Table
Screw Size & Decimal Equivalent Charts
Standard Manufacturing Thicknesses
Table of Properties—Metallic Materials
Table of Properties—Non–Metallic Materials
Workmanship Acceptance Standards


Engineering Reference Handbook

The purpose of this Engineering Handbook is to help you, our customers, specify the best Seastrom part for your application. This handbook includes specialized engineering information on each of our catalog parts. This information is to broaden your design capabilities by acquainting you with the characteristics of each. An informed decision on which type of part you need to specify, in most cases, will reduce your design, tooling and production costs. The specification of one of our standard catalog parts instead of a custom part will reduce your costs further and speed your order to you within two business days.


Bus Bars Washers - C Shaped
Clamps and Brackets Washers - Centering
Expansion Plugs Washers - Countersunk
Grounding Straps Washers - Finishing
Insulators Washers - Flat
Jumpers Washers - Lock
Retaining Rings Washers - Odd Shaped ID
Sheet Metal Nuts and Strips Washers - Odd Shaped OD
Solder Lugs Washers - Retaining
Spacers Washers - Retention
Spring Clips Washers - Shoulder
Tags Washers - Split
Washers - Spring
Washers - Tab, Key, and Notch
Washers - Terminal Cup



Product Directory

Seastrom Manufacturing Product Directory


How to Specify Special Parts

The primary way to avoid the development of a special part is to include only the restrictions which are critical to the functioning of the part.

The restrictions that lead to higher production costs are:
  • Over-dimensioning a part
  • Non mill standard material, thicknesses and tolerances
  • Unneeded temper and hardness ranges and heat treating
  • Flatness better than .005 TIR per inch
  • Tighter dimensional tolerances than necessary
  • Extremely small percentage of burr or burr free condition.

If you have any questions regarding a part for your application, let one of our experienced engineers help you at 800-634-2356.