Price Quote Get an up to date pricing and availability quote for this product. Order online or over the phone.
Quality Commitment
Serving our customers with quality and safety first.
- AS9120 Certified
- Audited supply chain
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- Customer service objectives
- Every product 100% inspected
Datasheet. 3F21256-101 specification
Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
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.
2.060in. ⁓2-1/16"
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.
2.970in. ⁓2-63/64"
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.
flat countersunk
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.
0.875in.
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.
0.410in.
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.
0.500in. ⁓1/2"
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.
20
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.
200000 pounds per square inch
Countersink Angle
The included angle of the countersink.
The included angle of the countersink.
80.0 degrees
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.
0.500in.
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.
one 0.069 in. dia hole thru shank located 0.710in. from head
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 comp 4140
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.
unf
Answers.
What quantity is this sold in?
1EA
What class is the thread series?
Unf
What material is the square neck bolt made of ?
Steel comp 4140
What is the thread quantity per inch?
20
What is the head style?
Flat countersunk
What is the thread length?
2.060 inches
What is the thread direction?
Right-hand
What is the thread class?
3a
How is this classified for shipping?
Schedule B number: 7318152000
nmfc 095190
Bolts and bolts and their nuts or washers exported in the same shipment
What's the federal classification of 3F21256-101?
FSC 5306 ⁓ Bolts
NSN 5306-00-908-9454 BOLT,SQUARE NECK
unf thread series one 0.069 in. dia hole thru shank located 0.710in. from head 20 thread quantity per inch flat countersunk head style 2.060" thread length right-hand 3a thread class
- NIIN
- 009089454
- NIIN Date
- 01/01/60
- Schedule B
- 7318152000
- Name Code
- 15939
- FIIG
- A003B0
- Item Weight
- 0.200lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $351.18 EA
- 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
Major End Users Countries and entities
- - Department of The Air Force
- - Poland
Availability for 3F21256-101 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)
- 095190 HARDWARE, NOI SUB 9
- UFC (universal freight code)
- 49790
Similar by Design Other bolts with similar characteristics
Nothing similar to this part number was found in our inventory
3F21256-101 / 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.
