Zygology
Zygology Ltd
Unit 7, Thame 40 Jane Morbey Road
Thame Oxon OX9 3RR
Phone: 0808 123 1221
Fax: +44 1844 266021
Email: sales@zygology.com
Web Address: www.zygology.com
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  • Uniform knurl diameter reduces the risk of sink marks.
  • Available in varying lengths for injection molding assemblies.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Unit of Measure

Specifications

Thread Size

 N/A .250-20 (1/4-20)

Type

 N/A STKA
Thread Code1 N/A 0420

Length Code

 N/A 6

L - Length ± .005

 N/A .187 in a1293.jpg

E Nom.

 N/A .375 in
Minor Dia.Min.2 N/A .197 in

Minor Dia.Max.

 N/A .207 in

Thread Specification

 N/A 2B per ASME B1.1

Standard Material

 N/A Aluminum

Standard Finish

 N/A Plain

CAD Supplier

 N/A PennEngineering® (SI®)
  • 1 Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread.
  • 2 Minor diameter may be below minimum in deformed thread area.