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Datasheet. MS21318-57 specification
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.
0.500in. ⁓1/2"
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.
0.429in. and 0.457in.
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.
0.155in. and 0.170in. ⁓11/64"
Pilot Diameter
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
0.198in. and 0.202in.
Pilot Length
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
0.062in.
Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.
Those features,not otherwise specified,which may be required for proper functioning of the item.
casehardened
Nonmachine Thread Style
The style designation indicating the configuration that most nearly corresponds to the appearance of a nonmachine thread.
The style designation indicating the configuration that most nearly corresponds to the appearance of a nonmachine thread.
drive screw (type u)
Nonmachine Nominal Thread Diameter
The length of a straight line which passes through the center of the nonmachine threaded portion,and terminates at the circumference.
The length of a straight line which passes through the center of the nonmachine threaded portion,and terminates at the circumference.
0.239in.
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
Surface Treatment
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.
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.
cadmium and chromate
Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-416 ty 2 cl 3 fed spec all treatment responses
Answers.
What quantity is this sold in?
1HD
What material is the drive screw made of ?
Steel
What is the head style?
Round
How is this classified for shipping?
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
What's the federal classification of MS21318-57?
FSC 5305 ⁓ Screws
NSN 5305-00-253-5631 SCREW,DRIVE
cadmium surface treated round head style
- NIIN
- 002535631
- NIIN Date
- 01/01/63
- Schedule B
- 7318152000
- Name Code
- 15896
- FIIG
- A003B0
- Item Weight
- 1.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $19.18 HD
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - National Aeronautics And Space Administration
- - Department of The Navy
- - Department of The Army
- - Department of The Air Force
- - U.s. Marine Corps
- - U.s. Coast Guard
- - Austria
- - Spain
- - Singapore
- - Australia
- - Canada
- - New Zealand
- - France
- - Republic of Korea
- - United Kingdom
- - Netherlands
- - Portugal
- - Denmark
- - Greece
- - Turkey
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- LCL (less than a car load rating)
- Unknown
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Metal hardware
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
MS21318-57 / Screw,driveWhat is the formal definition of this item?
A hardened cylindrical fastener with multiple spiral flutes on its shank. it also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.
