MIL-DTL-1222
View detailed technical data, stock status, and sourcing information for: MIL-DTL-1222
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
2a thread class, 0.750 inches nominal fastener length, hexagon head style, right-hand thread direction, 0.625 inches minimum and 0.750 inches maximum thread length
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.625 inches minimum and 0.750 inches maximum
- Fastener Length
- 0.750 inches nominal
- Head Style
- hexagon
- Head Height
- 0.226 inches minimum and 0.243 inches maximum
- Width Between Flats
- 0.551 inches minimum and 0.562 inches maximum
- Locking Feature
- patch or pellet or strip threads
- Nominal Thread Diameter
- 0.375 inches
- Thread Quantity Per Inch
- 16
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 80.0 rockwell b minimum fastener
- Minimum Yield Strength
- 40000 pounds per square inch
- Material
- nickel alloy 400 fastener
- Material
- plastic polyamide (nylon) locking feature
- Material Document And Classification
- qq-n-281 cla gr400 fed spec single material response fastener
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 1 type
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 167-6404625 ITEM 112 | Hexagon Head Cap Screw |
| 211053211 | Hexagon Head Cap Screw |
| 3/8-16UNC-2A X 3/4 IN. LG NICU | Hexagon Head Cap Screw |
| MIL-DTL-1222 | Hexagon Head Cap Screw |
FAQs
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What is the FSCG of the NSN 5305-01-336-3214?
Does the NSN 5305-01-336-3214 have a Schedule B code assigned?
Does NSN 5305-01-336-3214 require demilitarization?
Does NSN 5305-01-336-3214 contain precious materials?
Does NSN 5305-01-336-3214 contain hazardous materials?
When the NSN 5305-01-336-3214 was assigned to the Federal Catalog?
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