HB-1-5/16-18X16
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
0.859 inches minimum and 1.020 inches maximum thread length, 0.970 inches minimum and 1.020 inches maximum fastener length, 3a thread class, right-hand thread direction, hexagon head style
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
- 0.859 inches minimum and 1.020 inches maximum
- Fastener Length
- 0.970 inches minimum and 1.020 inches maximum
- Head Style
- hexagon
- Head Height
- 0.195 inches minimum and 0.211 inches maximum
- Width Between Flats
- 0.489 inches minimum and 0.500 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Thread Quantity Per Inch
- 18
- Material
- steel overall
- Material Document And Classification
- mil-s-16782 (cancelled) mil spec single material response overall
- Test Data Document
- "81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
- Thread Series Designator
- unc
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 |
|---|---|
| 60-574-0019-28 | Hexagon Head Cap Screw |
| E-74114PC71 | Hexagon Head Cap Screw |
| HB-1-5/16-18X16 | Hexagon Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-082-0125?
Does the NSN 5305-01-082-0125 have a Schedule B code assigned?
Does NSN 5305-01-082-0125 require demilitarization?
Does NSN 5305-01-082-0125 contain precious materials?
Does NSN 5305-01-082-0125 contain hazardous materials?
When the NSN 5305-01-082-0125 was assigned to the Federal Catalog?
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