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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 # AECH37K551  

Part # AECH37K551, 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

3/8-16

Grip Range

.466 - .551 in

Identification Mark

4 Rad.

A ± .015

1.312 in

B Ref.

View
.770 in

C Max.

.124 in

øD + .000 - .004

.490 in

E Max.

.597 in

F + .005 -.000

.120 in

P - Keyway Width + .003 -.000

.128 in

H - Keyway Height

.110 - .115 in

Install Drill Size Ref.

12.5mm

Install Hole Size Min.

.490 in

Install Hole Size Max.

.500 in

Pull Up Factor

.155 in

Weight

34.0 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®)



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