NSN 5305-00-977-8978
Button Head Socket Screw
About this product
0.250 inches fastener length, flat countersunk head style, between 0.255 inches and 0.271 inches head diameter, locking feature: strip threads.
Manufacturer part number 250514 for national stock number 5305009778978.
Datasheet
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Product description
Socket Head Cap Screw NSN 5305-00-977-8978.
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MPN or Model
250514
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.250 inches -
Fastener Length
0.250 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.255 inches and 0.271 inches -
Locking Feature
Strip threads -
Internal Drive Style
Hexagon -
Thread Diameter
0.138 inches -
Width Across Flats
0.078 inches -
Thready Qty Per Inch (tpi)
32 -
Hardness Rating
36.0 rockwell c and 43.0 rockwell c -
Countersink Angle
Between 80.0 degrees and 82.0 degrees -
Material
Steel -
Material Specification
66 federal standard single material response -
Surface Treatment
Cadmium and chromate -
Thread Series Designator
Unc
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Socket Head Cap Screw
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.
![Mechanic Bill explains Button Head Socket Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-00-977-8978 socket head cap screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
250514 | Woodward Hrt, Inc. |
LL24667-7 | Long-lok Fasteners Corporation |
Stock Check
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