- Black Oxide Finish - steel only
 - Case Hardened - steel only
 - Material: 12L14 Steel or 303 Stainless Steel
 - Thread Class 2A UNC
 - Special sizes quoted upon request
 - Metric sizes manufactured upon request
 - Many sizes conform to TCMAI standards
 
                    Unit of Measure
                    
               
        
            Specifications
                                                                                Material | 
                                                                        N/A 12L14 Steel | 
                                                                                Finish | 
                                                                        N/A Black Oxide | 
                                                                                Thread Size (A) | 
                                                                        N/A 5/16-18 | 
                                                                                Length (B) | 
                                                                        N/A 3.188 in | 
                                                                                Inside Diameter (C) +.001/-.000 | 
                                                                        N/A 0.313 in | 
                                                                                Head Width (D) | 
                                                                        N/A 0.625 in | 
                                                                                Head Thickness (E) +.000/-.005 | 
                                                                        N/A 0.313 in | 
                                                                                Thread Length (F) | 
                                                                        N/A 2.813 in | 
                                                                                Shank Length (G) | 
                                                                        N/A 2.813 in | 
                                                                                Head Diameter (H) | 
                                                                        N/A 0.328 in | 
                                                                                Weight per 100 pcs | 
                                                                        N/A 0.10 lb | 
                                                                                Type | 
                                                                        N/A Swing Bolt | 
                                                                                Class | 
                                                                        N/A 2A UNC | 
                                                                                Head Type | 
                                                                        N/A Swing |