Registered UsersSign In
Search Catalog
      GO   
 All Categories    Countersunk Head Threaded Insert - Closed End Keyed - Unified
PennEngineering
All Categories > ATLAS® Brand Rivet Nuts > Atlas MaxTite® Rivet Nuts > Countersunk Head > Countersunk Head Threaded Insert - Closed End Keyed - Unified > Part # AECH25KB451  

Part # AECH25KB451, Countersunk Head Threaded Insert - Closed End Keyed - Unified


    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

  • Designed for high load applications. Countersunk feature allow fastener to be installed flush with sheet surface.
  • Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.





 Specifications   

Thread Size

1/4-20

Grip Range

.391 - .451 in

Identification Mark

5 Rad.

B Ref.

View
.529 in

C Max.

.089 in

øD + .000 - .004

.332 in

E Max.

.382 in

F + .005 -.000

.054 in

L ± .015

1.312 in

K Ref.

.445 in

P - Keyway Width + .003 -.000

.062 in

H - Keyway Height

.056 - .058 in

Install Drill Size Ref.

Q

Install Hole Size Min.

.332 in

Install Hole Size Max.

.338 in

Pull Up Factor

.095 in

Weight per 1000

18.1 lb

Fastening

Uninstalled

Thread Specification

3B per ASME B1.1

Standard Material

4037 Alloy Steel

Standard Finish

Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II

CAD Supplier

PennEngineering® (Atlas®)



 DOWNLOADS 

PEM ATLAS Bulletin