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 0.610 inches and 0.630 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 3.960 inches and 3.980 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 0.181 inches and 0.194 inches
Width Between Flats:
Between 0.428 inches and 0.438 inches
MRC:
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.AAWB
Shank Unthreaded Hole Diameter:
0.083 inches first hole and 0.103 inches first hole
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:
Those features,not otherwise specified,which may be required for proper functioning of the item.CBBL
Features Provided:
Unfinished head
MRC:
The minimum and maximum pitch diameter limits of a nonstandard straight screw thread.CFSG
Nonstandard Thread Pitch Diameter:
+0.2259/+0.2270 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 distance from the shank hole centerline to the largest bearing surface of the head.CRZS
Distance From Head Largest Bearing Surface To Shank Hole Center:
0.110 inches first hole and 0.130 inches first hole
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Zinc and cadmium
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
