5305-00-638-8908
Hexagon Head Cap Screw
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Official Item Classification
- Name
- Hexagon Head Cap Screw
- (NSN) National Stock Number
- 5305-00-638-8908
- (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
- 01/01/1963 (63 years ago)
0.625 inches nominal fastener length, hexagon head style, 2a thread class, right-hand thread direction, 0.625 inches maximum thread length
Specs & Compatibility
2a
right-hand
0.625 inches maximum
0.625 inches nominal
hexagon
0.226 inches minimum and 0.243 inches maximum
0.551 inches minimum and 0.562 inches maximum
0.375 inches
24
150000 pounds per square inch
32.0 rockwell c minimum and 38.0 rockwell c maximum overall
120000 pounds per square inch
steel overall
sae gr 8 assn std single material response overall
cadmium or zinc overall
qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall
unf
Regulatory Compliance
Precious metal content is unknown
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.
S9I
0018257