NAS1581C4T12

Close Tolerance Screw

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Description:

Fastener Length: 1-5/32", Thread: 1/4-28, Thread Length: 3/8"

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NAS1581C4T12 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches nominal
Fastener Length:
1.138 inches minimum and 1.168 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.3504 inches minimum and 0.3988 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
0.74 inches minimum and 0.76 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
3700 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency:
Bolt,shear,100 deg flush reduced head,offset cruciform,offset cruciform-ribbed & dt slot,95 ksi fsu
Material:
Steel corrosion resisting overall
Material Specification:
Cres 286 conform to ams5731,ams5732,ams5737 or ams5853 national std/spec single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Passivate iaw ams2700 method 1,type 2 or 8,class 1 national std/spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Stainless Steel
Length 1-5/32

Additional Information

SKU / Model: NAS1581C4T12
NSN: 5305-01-603-8744
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5
National Motor Freight: 096640, Screws, Iron Or Steel
Download PDF Version
NAS1581C4T12_Military-Fasteners-com.pdf
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More close tolerance screws

NAS1581C6T8P

length: 1.094", thread: 3/8-24 shear 100°, flush reduced head bolt - cadmium plated corrosion resistant steel - offset cruciform

NAS1581C5T8P

length: 1.001", thread: 5/16-24 shear 100°, flush reduced head bolt - cadmium plated corrosion resistant steel - offset cruciform"

NAS1581C4T8

length: 0.903", thread: 1/2-28 shear 100°, flush reduced head bolt - cadmium plated corrosion resistant steel - offset cruciform

NAS1581C4T7

Length: 0.841in., thread: 1/2-28 shear, flush reduced head bolt, cadmium plated corrosion resistant steel, offset cruciform

NAS1581C4T6

Length: 0.778in., thread: 1/2-28 shear flush reduced head cadmium plated corrosion resistant steel offset cruciform

NAS1581C4T5

Length: 0.715in., thread: 1/2-28 shear flush reduced head bolt cadmium plated corrosion resistant steel offset cruciform

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