NAS1221-4-7
Machine Screw
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			Description:
			
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			NAS1221-4-7 Machine Screw
				
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													Up to qty 60 ships same day if ordered before 4pm EST											
					
					
					
				
												
				
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			NAS1221-4-7 Datasheet Features and Specification
						Thread Class:
					
					
						3a					
				
						Thread Direction:
					
					
						Right-hand					
				
						Thread Length:
					
					
						0.401 inches minimum and 0.451 inches maximum					
				
						Fastener Length:
					
					
						0.849 inches minimum and 0.879 inches maximum					
				
						Head Style:
					
					
						Flat countersunk					
				
						Head Diameter:
					
					
						0.461 inches minimum and 0.507 inches maximum					
				
						Internal Drive Style:
					
					
						High-torque					
				
						Thread Diameter:
					
					
						0.250 inches					
				
						Thready Qty Per Inch (tpi):
					
					
						28					
				
						Min. Tensile Strength (psi):
					
					
						160000 pounds per square inch					
				
						Hardness Rating:
					
					
						36.0 rockwell c minimum and 40.0 rockwell c maximum					
				
						Countersink Angle:
					
					
						99.0 degrees minimum and 101.0 degrees maximum					
				
						Screw Material:
					
					
						Steel comp 4140 or steel comp e4340 or steel comp 8740					
				
						Screw Material Specification:
					
					
						Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response					
				
						Screw Surface Treatment:
					
					
						Cadmium					
				
						Screw Surface Treatment Specification:
					
					
						Qq-p-416,ty 1,cl 3 fed spec single treatment response					
				
						Thread Series Designator:
					
					
						Unjf					
				
						Specification Data:
					
					
						80205-nas1221 professional/industrial association standard					
				Additional Information
| SKU / Model: | NAS122147 | 
| NSN: | 5305-01-014-1174 | 
| FSC: | Screws / 5305 | 
| Pack Weight (Approx.) | 0.000 lb | 
| Minimum Qty (MOQ): | 10 | 
| Schedule B: | 7318.15.2095 | 
| ECCN: | EAR99 | 
| National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) | 
| 
						Download PDF Version NAS1221-4-7_Military-Fasteners-com.pdf  | 
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