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    Flathead Threaded Insert - Open End Keyed - Unified
    Flathead
        
    
    
            
                
                    
                        
                
            
                
            
        
    - Designed for high load applications. Available with rib, key or full hex features for high torque applications.
 - Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.
 
                            Part # | 
                        
                            Thread Size | 
                        
                            Grip Range | 
                        
                            A ± .015 | 
                        
                            M Ref. | 
                        
                            Fastening | 
                        
                            Standard Material | 
                        
                            Standard Finish | 
                        
                            CAD | 
                                                        
|---|---|---|---|---|---|---|---|---|
| AENM37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A | M Ref. N/A .635 in | Fastening N/A Installed | Standard Material N/A 300 Series Stainless Steel | Standard Finish N/A Passivated and/or Tested Per ASTM A380 | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AESS37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A 1.312 in | M Ref. N/A | Fastening N/A Uninstalled | Standard Material N/A 430 Series Stainless Steel | Standard Finish N/A Passivated and/or Tested Per ASTM A380 | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AESS37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A | M Ref. N/A .635 in | Fastening N/A Installed | Standard Material N/A 430 Series Stainless Steel | Standard Finish N/A Passivated and/or Tested Per ASTM A380 | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AEBR37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A 1.312 in | M Ref. N/A | Fastening N/A Uninstalled | Standard Material N/A Alloy No. 260 Brass | Standard Finish N/A None - bright as machined | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AEBR37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A | M Ref. N/A .635 in | Fastening N/A Installed | Standard Material N/A Alloy No. 260 Brass | Standard Finish N/A None - bright as machined | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AECH37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A 1.312 in | M Ref. N/A | Fastening N/A Uninstalled | Standard Material N/A 4037 Alloy Steel | Standard Finish N/A Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
| AECH37K540 | Thread Size N/A 3/8-16 | Grip Range N/A .455 - .540 in | A ± .015 N/A | M Ref. N/A .635 in | Fastening N/A Installed | Standard Material N/A 4037 Alloy Steel | Standard Finish N/A Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                                                    
		  
		  
                                            