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Pan Head Machine Screw MS51957-17B

Description:

Black oxide coating, length: 1/2", thread: 4-40, pan head machine screw, corrosion resistant steel, coarse thread

MS51957-17B Details

National Stock Number (NSN) 5305-00-182-9459
Alternate Part Number N/A
Federal Supply Class (FSC) 5305
Unit of Measure (UOM) 100 /Ea.
Thread Class 2a
Thread Direction Right-hand
Thread Length Between 0.419 inches and 0.500 inches
Fastener Length Between 0.469 inches and 0.500 inches
Head Style Pan
Head Diameter Between 0.205 inches and 0.219 inches
Head Height Between 0.070 inches and 0.080 inches
Internal Drive Style Cross recess type 1
Thread Diameter 0.112 inches
Thready Qty Per Inch (tpi) 40
Min. Tensile Strength (psi) 80000 pounds per square inch
Screw Material Stainless steel or steel
Screw Material Specification Qq-s-763, 300 series federal specification 1st material response or 66, 300 series federal standard 1st material response or comp 16-18 or 18-8 assn standard 2nd material response
Screw Surface Treatment Oxide
Screw Surface Treatment Specification Mil-c-13924 cl 4 military specification single treatment response
Thread Series Designator Unc
Nondefinitive Specification/std Data 3 type and 9c style

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