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:
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.AASA
Thread Length:
Between 0.328 inches and 0.375 inches
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 1.703 inches and 1.750 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.AASK
Head Style:
Hexagon
MRC:
A measurement from the bottom to the top of the head,in distinction from depth.AASU
Head Height:
Between 0.109 inches and 0.141 inches
Width Between Flats:
Between 0.428 inches and 0.440 inches
MRC:
The length of a straight line which passes through the center of the grip,and terminates at the circumference.AAUR
Grip Diameter:
Between 0.2487 inches and 0.2492 inches
MRC:
The minimum load,applied perpendicularly to the longitudinal axis of an item,at which point the item will fracture when subjected to the standard single shear test method.AAWU
Single Shear Strength:
4650 pounds per square inch
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:
A measurement of the longest dimension of the grip,in distinction from width.ANEE
Grip Length:
1.375 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):
28
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4037 or steel comp 4140 or steel comp e4340 or steel comp 6150
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:
Mil-s-6758 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-6049 military specification 4th material response or an-s-9 assn standard 5th material response or mil-s-5626 military specification 6th material response or mil-s-5000 military specification 7th material response or mil-s-8503 military specification 8th material response
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:
Unf
