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Datasheet. B.18.5.2.1 specification
Thread Direction
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.
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
Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
38.0 mm
Fastener Length
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.
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.
40.0 mm
Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
round
Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
35.0 mm
Head Height
A measurement from the bottom to the top of the head,in distinction from depth.
A measurement from the bottom to the top of the head,in distinction from depth.
8.0 mm and 8.9 mm
Neck Length
A measurement of the longest dimension of the neck,in distinction from width.
A measurement of the longest dimension of the neck,in distinction from width.
20.5 mm and 23.6 mm
Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
16.0 mm
Thread Pitch In Millimeters
A measurement of distance between corresponding points on two adjacent threads measured parallel to the thread axis,expressed in millimeters.
A measurement of distance between corresponding points on two adjacent threads measured parallel to the thread axis,expressed in millimeters.
2.0
External Thread Tolerance Class
A numeric-alpha designator indicating established pitch and crest diameter tolerance positions and grades of an external thread.
A numeric-alpha designator indicating established pitch and crest diameter tolerance positions and grades of an external thread.
6g
Neck Width
A measurement taken at right angles to the length of the neck,in distinction from thickness.
A measurement taken at right angles to the length of the neck,in distinction from thickness.
2.4 mm and 3.0 mm
Material
The chemical compound or mechanical mixture properties of which the item is fabricated.
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
m
Answers.
What class is the thread series?
M
What material is the square neck bolt made of ?
Steel corrosion resisting
What is the head style?
Round
What is the thread length?
38.0 millimeters
What is the thread direction?
Right-hand
How is this classified for shipping?
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
What's the federal classification of B.18.5.2.1?
FSC 5306 ⁓ Bolts
NSN 5306-01-545-3643 BOLT,SQUARE NECK
m thread series round head style 38.0mm thread length right-hand
- NIIN
- 015453643
- NIIN Date
- 11/09/06
- Schedule B
- 7318152000
- Name Code
- 15939
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | B18521B16040N | Cage 80204 |
Major End Users Countries and entities
- - Canada
- - New Zealand
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B.18.5.2.1 / Bolt,square neckWhat is the formal definition of this item?
A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
