5305-01-664-8437
Hexagon Head Cap Screw
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Official Item Classification
- Name
- Hexagon Head Cap Screw
- (NSN) National Stock Number
- 5305-01-664-8437
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 18257
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 07/07/2017 (9 years ago)
right-hand thread direction, hexagon head style, 1.250 inches nominal thread length, 2a thread class, 2.500 inches nominal fastener length
Specs & Compatibility
2a
right-hand
1.250 inches nominal
2.500 inches nominal
hexagon
0.302 inches minimum and 0.323 inches maximum
0.736 inches minimum and 0.750 inches maximum
0.50 inches
13
120000 pounds per square inch
15.0 degrees minimum and 30.0 degrees maximum
hex cap screw, unc-2a carbon steel, yellow zinc plated sae j429, grade a5
width across corners min. 0.840 max 0.866
yellow overall
steel and steel corrosion resisting overall
sae j995 national std single material response overall
zinc overall
astm f 1941 assn std single treatment response overall
unc
Regulatory Compliance
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0018257
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| Part Number | Description |
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| 050-000030-120 | Hexagon Head Cap Screw |
| 95213 | Hexagon Head Cap Screw |