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Datasheet. B1821BH025C113D specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.750in. and 0.938in. ⁓61/64"
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.
1.063in. and 1.125in. ⁓1-1/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.150in. and 0.163in. ⁓11/64"
0.4280in. and 0.4375in.
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.0605in. and 0.0685in. ⁓5/64"
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250in. ⁓1/4"
The number of holes provided.
1
Indicates the type of hole(s) provided in the item.
drilled
Those features,not otherwise specified,which may be required for proper functioning of the item.
finished head
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
150000 pounds per square inch
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
32.0 rockwell c fastener and 38.0 rockwell c fastener
The stress at which a material exhibits a specified limiting deviation from the proportionality of stress or strain.
120000 pounds per square inch
The style designation that most nearly corresponds to the appearance of the hole configuration.
hexagon flats
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
drilled head hole diameter: 0.0605 in. min. and 0.0685 in. max. diameter
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
sae J429 grade 8 assn std single material response or astm A354 grade bd assn std single material response
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.
zinc fastener and chromate fastener
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
astm B633 ty 2 sc 3 assn std single treatment response fastener
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
Answers.
Unc
Steel
20
0.0605 inches minimum and 0.0685 inches maximum
Hexagon
0.750 inches minimum and 0.938 inches maximum
Right-hand
2a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-466-7402 SCREW,CAP,HEXAGON HEAD
unc thread series zinc fastener surface treated drilled head hole diameter: 0.0605 in. min. 20 thread quantity per inch 0.0605" hole diameter hexagon head style 0.750" thread length right-hand 2a thread class
- NIIN
- 014667402
- NIIN Date
- 07/29/99
- Schedule B
- 7318152000
- Name Code
- 18257
- FIIG
- A003B0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Australia
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B1821BH025C113D / Screw,cap,hexagon headWhat is the formal definition of this item?
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
