MRC:
						A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
					 
					
						Thread Class:
					
					
						3a					
				 
							
					
						MRC:
						The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.AAJF
					 
					
						Thread Direction:
					
					
						Right-hand					
				 
							
					
						MRC:
						The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.AASB
					 
					
						Fastener Length:
					
					
						Between 1.438 inches and 1.500 inches 					
				 
							
					
						MRC:
						The style designation indicating the configuration that most nearly corresponds to the appearance of the head.AASK
					 
					
						Head Style:
					
					
						Square					
				 
							
					
						MRC:
						A measurement from the bottom to the top of the head,in distinction from depth.AASU
					 
					
						Head Height:
					
					
						Between 0.178 inches and 0.196 inches 					
				 
							
					
					
						Width Between Flats:
					
					
						Between 0.241 inches and 0.250 inches 					
				 
							
					
						MRC:
						The style designation indicating the configuration that most nearly corresponds to the appearance of the point.ABQJ
					 
					
						Point Style:
					
					
						Cup					
				 
							
					
						MRC:
						The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.ABQZ
					 
					
						Internal Drive Style:
					
					
						W/o internal drive					
				 
							
					
						MRC:
						The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.AHYM
					 
					
						Thread Diameter:
					
					
						0.250 inches					
				 
							
					
						MRC:
						The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
					 
					
						Thready Qty Per Inch (tpi):
					
					
						20					
				 
							
					
						MRC:
						A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.CQFM
					 
					
						Hardness Rating:
					
					
						45.0 rockwell c   and 53.0 rockwell c  					
				 
							
					
						MRC:
						A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.CQFM
					 
					
						Hardness Rating:
					
					
						45.0 rockwell c   and 53.0 rockwell c  					
				 
							
					
						MRC:
						The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
					 
					
						Material:
					
					
						Steel comp 4037  or steel comp 4137  or steel comp 4140  or steel comp 8630  or steel comp 8740 					
				 
							
					
						MRC:
						The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
					 
					
						Material Specification:
					
					
						66 federal standard all material responses 					
				 
							
					
						MRC:
						A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
					 
					
						Thread Series Designator:
					
					
						Unc					
				 
							
					
						MRC:
						The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.ZZZT
					 
					
						Specification Or Standard:
					
					
						A type