
Close Tolerance Bolt-Drilled Shank - Length: 1.563", Grip: 1.125", Thread: 5/16-24, Hex Head, Drilled Shank, Tension, Short Thread, Cadmium Plated Alloy Steel
| Detail | Characteristic | 
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.376 INCHES MINIMUM FIRST HOLE AND 1.386 INCHES MAXIMUM FIRST HOLE | 
| FASTENER LENGTH | 1.548 INCHES MINIMUM AND 1.578 INCHES MAXIMUM | 
| GRIP DIAMETER | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM | 
| GRIP LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM | 
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL | 
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM | 
| HEAD STYLE | DISHED HEXAGON | 
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL | 
| MATERIAL | STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL | 
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD DIAMETER | 0.312 INCHES | 
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE | 
| SURFACE FINISH | 125.0 MICROINCHES TOP OF HEAD | 
| SURFACE FINISH | 125.0 MICROINCHES SIDES OF HEAD | 
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | 
| SURFACE FINISH | 32.0 MICROINCHES GRIP | 
| SURFACE FINISH | 32.0 MICROINCHES THREADS | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL | 
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 0.438 INCHES NOMINAL | 
| THREAD SERIES DESIGNATOR | UNJF | 
| THREAD QUANTITY PER INCH | 24 | 
| SPECIFICATION/STANDARD DATA | 80205-NAS6205 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION | 
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM | 
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                                                                                Inventory | 
                                                                        N/A 0 | 
                                                                                Estimated Ship Date | 
                                                                        N/A Ships within 10-14 days | 
                                                                                Inventory Note | 
                                                                        N/A Need additional stock? Call (877) 920-1876 or email | 
                                                                                Thread Size | 
                                                                        N/A 0.3125-24 | 
                                                                                Length | 
                                                                        N/A 1.563 in | 
                                                                                Grip | 
                                                                        N/A 1.125 in | 
                                                                                Drilling | 
                                                                        N/A Drilled Head | 
                                                                                Grip Tolerance | 
                                                                        N/A ±0.010 in | 
                                                                                Head Type | 
                                                                        N/A Hexagon | 
                                                                                Industry Standards/Certification | 
                                                                        N/A NAS6205 | 
                                                                                Weight | 
                                                                        N/A .004 lb | 
                                                                                Alternate Part Number | 
                                                                        N/A NAS1105-18D | 
                                                                                NSN | 
                                                                        N/A 5306-01-100-6947 | 
                                                                                NIIN | 
                                                                        N/A 01-100-6947 | 
                                                                                Part # Unpunctuated | 
                                                                        N/A NAS620518D | 
                                                                                Minimum Order Note | 
                                                                        N/A Minimum order is 10. Must order in increments of 1. | 
                                                                                Country of Origin | 
                                                                        N/A USA | 
                                                                                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. |