PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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Locking and Non-locking Threads
These fasteners provide load-bearing threads in thin sheets and permit up to .030” adjustment for mating  hole misalignment.

The self-clinching feature offers fast and simple assembly. The fasteners are squeezed into prepared holes using  any standard press. The sheet remains flush on one side, and the fastener is permanently locked in place.

Extra strength and support in assembly is obtained by the threads of the floating nut extending fully into themore
Unit of Measure

Specifications

Thread Size

 .112-40 (#4-40)

Thread Type

 Non-Locking a1369.jpg

Thread Code

 440

Shank Code

 2

A (Shank) Max.

 .054 in a1367.jpg

Min. Sheet Thickness

 .054 in

Hole Size in Sheet + .003 - .000

 .290 in

C Max.

 .289 in

D Max.

 .290 in

E ± .015

 .360 in

T1 Max.

 .130 in

Min. Dist. Hole C/L to Edge

 .300 in

Float

 .015” minimum, in all directions from center, .030” total

Fastener Material

 Steel

Fastener Materials - Retainer

 Heat-Treated Carbon Steel

Fastener Materials - Nut

 Carbon Steel

Standard Finish - Retainer & Nut

 Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
For Use in Sheet Hardness1 HRB 70 / HB 125 or Less

Thread Specification

 Internal, ANSI B1.1, 2B

CAD Supplier

 PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.