Engineering Library

A technical knowledge platform helping engineers make better fastening decisions.

Standards

ISO • ASTM • ASME • DIN • EN • SAE

Correct specification requires identifying: Standard, Material, Grade, Thread and Coating.

Materials Database

Carbon Steel
Alloy Steel
304 Stainless Steel
316 Stainless Steel
Duplex 2205
Super Duplex 2507
Brass
Silicon Bronze
Titanium
Inconel
Monel
Hastelloy

Surface Coatings

Plain
Zinc
HDG
Black Oxide
Geomet
Dacromet
Xylan
PTFE
Zinc Nickel
Delta Protekt
Magni
Sherardizing

Property Classes

ISO 8.8
ISO 10.9
ISO 12.9
A2 Stainless
A4 Stainless

Engineering Selection Guides

Fastener Identification
Material Selection
Coating Selection
Corrosion Evaluation
Torque Considerations
Quality Requirements

Practical Engineering Notes

Many fastening failures result from incorrect material selection, wrong substitution, unsuitable coating or lack of traceability.