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Worldwide distributor of NSN parts and consumables located in the USA.

Hexagon Head Cap Screw

Model / MPN: A721050C125 | NSN: 5305-00-001-4777
ITAR Registered seal

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt, machine; bolt, externally relieved body; bolt, internal wrenching; and screw, cap, socket head.

Product Details
NATO Stock Number
5305-00-001-4777
Sold in multiples of
100 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.250 inches
Fastener Length
1.250 inches
Head Style
Hexagon
Head Height
Between 0.302 inches and 0.323 inches
Width Between Flats
Between 0.736 inches and 0.750 inches
Locking Feature
Patch threads
Thread Diameter
0.500 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
13
Min. Tensile Strength (psi)
120000 pounds per square inch
Hardness Rating
25.0 rockwell c and 34.0 rockwell c
Material
Steel
Material Specification
Sae gr 8 assn standard single material response
Surface Treatment
Zinc
Surface Treatment Specification
Qq-z-325, type 2, cl 3 federal specification single treatment response
Thread Series Designator
Unc
721050C Series Parts

Pricing and Availability

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A721050C125 Cross Reference
  • PL-315424 PC 75
  • 315424 PC 75
  • 1611208PC104