Hi-Lok - Protruding Tension Head, Oversized For Hl20, Alloy Steel, Cadmium Plated | Diameter: 9/32", Grip Length: 5/8"
| Detail | Characteristic | 
| END ITEM IDENTIFICATION | HELICOPTER, SOF / HH-53H PAVE LOW;HELICOPTER, UH-60A/UH-60D;AIRCRAFT, STRATOFORTRESS B-52;AIRCRAFT, STRATOLIFTER C-135;JOINT STARS TARGET RADAR SYSTEM | 
| FASTENER LENGTH | 1.010 INCHES MINIMUM AND 1.030 INCHES MAXIMUM | 
| GRIP LENGTH | 0.630 INCHES MAXIMUM | 
| HEAD HEIGHT | 0.077 INCHES MINIMUM AND 0.090 INCHES MAXIMUM | 
| HEAD MAJOR DIAMETER | 0.435 INCHES MINIMUM AND 0.460 INCHES MAXIMUM | 
| HEAD STYLE | ERR-090 | 
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP | 
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL | 
| MATERIAL | STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL | 
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD SIZE | 0.250 INCHES | 
| SHANK DIAMETER | 0.2797 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM | 
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED | 
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD SERIES DESIGNATOR | UNJF | 
| THREAD QUANTITY PER INCH | 28 | 
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM | 
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                    Unit of Measure
                    
               
        
            
                                                                                Inventory | 
                                                                        N/A {0} | 
                                                                                Estimated Ship Date | 
                                                                        N/A {N/A} | 
                                                                                Inventory Note | 
                                                                        N/A Need additional stock? Call (877) 920-1876 or email | 
                                                                                Thread Size | 
                                                                        N/A 1/4-28 | 
                                                                                Head Type | 
                                                                        N/A Protruding Tension | 
                                                                                Thread Type | 
                                                                        N/A 1/4-28-UNJF-3A Modified | 
                                                                                Tensile Strength | 
                                                                        N/A 160000 to 180000 psi | 
                                                                                Shear Strength | 
                                                                        N/A 95000 psi | 
                                                                                Maximum Grip | 
                                                                        N/A 5/8 in | 
                                                                                Nominal Diameter | 
                                                                        N/A 9/32 in | 
                                                                                Diameter A | 
                                                                        N/A 0.435 in0.460 in | 
                                                                                Reference B | 
                                                                        N/A 0.395 in | 
                                                                                Diameter D | 
                                                                        N/A 0.2797 in0.2807 in | 
                                                                                Diameter TD | 
                                                                        N/A 0.2410 in0.2440 in | 
                                                                                Reference G | 
                                                                        N/A 0.045 in | 
                                                                                Dimension H | 
                                                                        N/A 0.077 in0.090 in | 
                                                                                Minimum Double Shear Load | 
                                                                        N/A 11800 lb | 
                                                                                Minimum Tension Load | 
                                                                        N/A 5820 lb | 
                                                                                Maximum Grip + B Tolerance | 
                                                                        N/A ±0.010 in | 
                                                                                Maximum Grip Tolerance | 
                                                                        N/A ±0.005 in | 
                                                                                Weight | 
                                                                        N/A .005 lb | 
                                                                                Manufacturer | 
                                                                        N/A Hi-Lok | 
                                                                                NSN | 
                                                                        N/A 5320-01-163-2011 | 
                                                                                NIIN | 
                                                                        N/A 01-163-2011 | 
                                                                                Part # Unpunctuated | 
                                                                        N/A HL220810 | 
                                                                                Minimum Order Note | 
                                                                        N/A Minimum order is 1. Must order in increments of 1. | 
                                                                                Note | 
                                                                        N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment. | 
                                                                                California Residents | 
                                                                        N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. | 
 

