
Pan Head Machine Screw - Length: 5/16", Thread: 4-40, Pan Head Machine Screw, Black Brass, Coarse Thread
| Detail | Characteristic | 
| FASTENER LENGTH | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | 
| HEAD DIAMETER | 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM | 
| HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM | 
| HEAD STYLE | PAN | 
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | 
| MINIMUM TENSILE STRENGTH | 57000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD DIAMETER | 0.112 INCHES | 
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE | 
| SCREW MATERIAL | COPPER ALLOY | 
| THREAD CLASS | 2A | 
| THREAD LENGTH | 0.262 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD SERIES DESIGNATOR | UNC | 
| THREAD QUANTITY PER INCH | 40 | 
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| 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 4-40 | 
| Material | N/A Brass | 
| Length | N/A 5/16 in | 
| Head Type | N/A Pan | 
| Head Angle | N/A 100 ? | 
| Thread Type | N/A Coarse Thread | 
| Color | N/A Black | 
| Industry Standards/Certification | N/A MS35214 | 
| Weight | N/A 0.001 lb | 
| Alternate Part Number | N/A AN515B440R5 | 
| NSN | N/A 5305-00-207-7466 | 
| NIIN | N/A 00-207-7466 | 
| Part # Unpunctuated | N/A MS3521413 | 
| Minimum Order Note | N/A Minimum order is 100. 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. | 
