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All Categories > ATLAS® Brand Rivet Nuts > Atlas MaxTite® Rivet Nuts > Countersunk Head > Countersunk Head Threaded Insert - Open End Keyed - Unified > Part # AES31K556  

Part # AES31K556, Countersunk Head Threaded Insert - Open End Keyed - Unified


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  • 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

5/16-18

Grip Range

.481 - .556 in

Identification Mark

5 Rad.

A ± .015

1.250 in

B Ref.

View
.656 in

C Max.

.104 in

øD + .000 - .004

.413 in

E Max.

.505 in

F + .005 -.000

.120 in

P - Keyway Width + .003 -.000

.128 in

H - Keyway Height

.097 - .102 in

Install Drill Size Ref.

Z

Install Hole Size Min.

.413 in

Install Hole Size Max.

.423 in

Pull Up Factor

.120 in

Weight

23.7 lb

Fastening

Uninstalled

Thread Specification

3B per ASME B1.1

Standard Material

Low Carbon Steel

Standard Finish

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

CAD Supplier

PennEngineering® (Atlas®)



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