OmniSynk Distribution Services

ST3M505-3-12

Screw, Shoulder

Part number
ST3M505-3-12
NSN
5305-01-046-0715
NIIN
01-046-0715
Item name
Screw, Shoulder
Manufacturer
Alcoa Global Fasteners Inc.
CAGE code
06950
FSC
5305
Unit of issue
EA
DEMIL code
A

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Alternate part numbers

Technical characteristics

Thread Class
3A
Thread Direction
Right-hand
Thread Length
0.3310 inches nominal
Fastener Length
1.0650 inches minimum and 1.1220 inches maximum
Head Style
Flat countersunk
Head Diameter
0.3760 inches minimum and 0.3850 inches maximum
Shoulder Diameter
0.3270 inches minimum first shoulder and 0.3272 inches maximum first shoulder
Shoulder Length
0.0448 inches minimum first shoulder and 0.0474 inches maximum first shoulder
Internal Drive Style
High-torque
Nominal Thread Diameter
0.1900 inches
Thread Quantity per Inch
32
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape
Round first shoulder
Material
Steel comp XM-13 overall
Material Document and Classification
Ams 5629 assn std single material response overall
Surface Treatment
Passivate overall
Surface Treatment Document and Classification
QQ-P-35 fed spec single treatment response overall
Thread Series Designator
UNJF
Catalogue data is compiled from public DLA/FLIS sources and is provided for identification. Availability, condition and certification are confirmed on quotation. OmniSynk Distribution Services is a stocking distributor.

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