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  • Pilot diameter and undercuts allow plastic to flow into grooves providing high pullout resistance.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Unit of Measure

Specifications

Thread Size

.313-18 (5/16-18)

Type

ITA
Thread Code1 0518

A ± .005

.469 in a1292.jpg

E Nom.

.437 in

C ± .005

.404 in

S1 Nom.

.080 in

S2 Nom.

.090 in

Minor Dia.Min.

.254 in

Minor Dia.Max.

.265 in

Thread Specification

2B per ASME B1.1

Standard Material

Aluminum

Standard Finish

Plain

CAD Supplier

PennEngineering® (SI®)
  • 1 Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread.