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Datasheet. 8557 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
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.
0.50in. ⁓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.
hexagon extended washer
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.
0.105in. and 0.120in. ⁓1/8"
Width Between Flats
0.305in. and 0.312in.
Extended Washer Diameter
0.384in. and 0.414in.
Extended Washer Thickness
0.019in. and 0.031in.
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.
0.30in.
Point Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
SELF-Drilling
Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
w/o internal drive
End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.
The national stock number or the identification information of the end equipment for which the item is a part.
4320-01-533-6417
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.
0.19in. (UTS #10)
Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16.0
Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
1936 pounds per square inch
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.
self drilling
Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
SELF-Drilling fastener
Special Features
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.
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.
drilling point is style TEK3
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.
zinc
Answers.
What material is the self-drilling screw made of ?
Steel
What is the thread quantity per inch?
16.0
What is the head style?
Hexagon extended washer
What is the thread direction?
Right-hand
How is this classified for shipping?
Schedule B number: 7318152000
nmfc 096640
Bolts and bolts and their nuts or washers exported in the same shipment
What's the federal classification of 8557?
FSC 5305 ⁓ Screws
NSN 5305-01-605-4408 SCREW,SELF-DRILLING
Used on 4320-01-533-6417. zinc surface treated drilling point is style TEK3 self-drilling fastener 16.0 thread quantity per inch hexagon extended washer head style right-hand
- NIIN
- 016054408
- NIIN Date
- 04/19/12
- Schedule B
- 7318152000
- Name Code
- 38031
- FIIG
- A003B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $2.00 EA
- 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. | 882519071 | Cage 1QCU7 |
| 2. | 1397000 | Cage 83910 |
| 3. | 882519071 | Cage 1QCU7 |
| 4. | 1397000 | Cage 83910 |
Major End Users Countries and entities
- - U.s. Marine Corps
Availability for 8557 A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 70.0
- 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)
- 096640 SCREWS, IRON OR STEEL
- UFC (universal freight code)
- 50600
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
8557 / Screw,self-drillingWhat is the formal definition of this item?
A hardened, externally-threaded fastener with a self-drilling point. it drills, taps and fastens and may have a machine screw thread or a nonmachine screw thread. the threads usually extend from behind the pilot to the bearing surface of the head.
