1/4-20X1 SHCS
View detailed technical data, stock status, and sourcing information for: 1/4-20X1 SHCS
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
right-hand thread direction, 1.000 inches nominal fastener length, flat chamfer head style, 0.900 inches maximum thread length, 3a thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.900 inches maximum
- Fastener Length
- 1.000 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.365 inches minimum and 0.375 inches maximum
- Head Height
- 0.244 inches minimum and 0.250 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.188 inches nominal
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
- Color
- black overall
- Material
- steel uns k03104 overall
- Material Document And Classification
- astm a574 assn std single material response overall
- Surface Treatment
- oxide overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-01-680-9557 | No Name Available | 05/01/2022 |
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 |
|---|---|
| 1/4-20X1 SHCS | Socket Head Cap Screw |
| 91251A542 | Socket Head Cap Screw |
| ANSI B18.3-1/4X1 SCSH STEEL | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-432-1761?
Does the NSN 5305-01-432-1761 have a Schedule B code assigned?
Does NSN 5305-01-432-1761 require demilitarization?
Does NSN 5305-01-432-1761 contain precious materials?
Does NSN 5305-01-432-1761 contain hazardous materials?
When the NSN 5305-01-432-1761 was assigned to the Federal Catalog?
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Pricing
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