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Serving our customers with quality and safety first.
- AS9120 Certified
- Audited supply chain
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Datasheet. 31W257 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a nut thread
The minimum and maximum pitch diameter limits of a straight screw thread.
+0.2195/+0.2215in. stud thread
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 nut thread
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 stud thread
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.500in. nut thread ⁓1/2"
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.438in. stud thread ⁓29/64"
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
1.219in. ⁓1-7/32"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20 stud thread
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28 nut thread
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
25.0 rockwell c and 31.0 rockwell c
A designation that is used for the purpose of general identification of the thread.
0.250in. nut thread ⁓1/4"
A designation that is used for the purpose of general identification of the thread.
0.250in. stud thread ⁓1/4"
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.
header point 0.062 in. long by 0.156 in. dia on stud end
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1040
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-S-633 fed spec 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.
cadmium and chromate
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 nut thread
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
uns stud thread
Answers.
Uns stud thread
Unf nut thread
Steel comp 1040
28 nut thread
20 stud thread
0.438 inches minimum stud thread
0.500 inches minimum nut thread
Right-hand stud thread
Right-hand nut thread
3a nut thread
FSC 5307 ⁓ Studs
NSN 5307-00-842-0855 STUD,PLAIN
uns stud thread thread series cadmium surface treated header point 0.062 in. long by 0.156 in. dia on stud end 28 nut thread thread quantity per inch 1.219" overall length 0.438" stud thread thread length right-hand stud thread 3a nut thread thread class
- NIIN
- 008420855
- NIIN Date
- 01/01/61
- Schedule B
- Name Code
- 15948
- FIIG
- A051A0
- 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
| 1. | 5215327 | Cage 19207 |
| 2. | N10277 | Cage 56442 |
| 3. | 380025 | Cage 65282 |
Major End Users Countries and entities
- - Austria
- - Republic of Korea
- - Greece
Availability for 31W257 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)
- Rating variable
- LCL (less than a car load rating)
- 50.0
- 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)
- Bolts or nuts (iron or steel),(less than 35 feet)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other studs with similar characteristics
Nothing similar to this part number was found in our inventory
31W257 / Stud,plainWhat is the formal definition of this item?
A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. the maximum diameter of the unthreaded portion must not be greater than the nominal thread diameter plus 0.020 inches (0.508 mm). the unthreaded portion must be without locking or wrenching provisions. it may be thread relieved. see also rod, threaded end and rod, continuous thread.
