NAS1581K4R13

Bolt

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Description:

Fastener Length: 1-7/32", Thread: 1/4-28, Thread Length: 27/64"

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NAS1581K4R13 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.378 inches minimum and 0.428 inches maximum
Fastener Length:
1.200 inches minimum and 1.230 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.350 inches minimum and 0.399 inches maximum
Grip Diameter:
0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
0.802 inches minimum and 0.822 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Special Features:
Internal drive ribbed
Material:
Titanium alloy uns r56400 overall
Material Specification:
Ams 4928 assn std single material response or ams 4967 assn std single material response overall
Thread Series Designator:
Unjf
Specification Data:
80205-nas1581 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Titanium
Length 1-7/32

Additional Information

SKU / Model: NAS1581K4R13
NSN: 5305-01-217-4620
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 8108.90.3060
ECCN: 9A991
National Motor Freight: 136500, Metal Noi / Metal Alloys Noi
Download PDF Version
NAS1581K4R13_Military-Fasteners-com.pdf
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Ryan was extremely helpful and is typical of the type of customer service I am accustomed to when I ask for help at Military Fasteners.

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prompt service and delivery and fair pricing ... can't ask for more than that!

5.0

Trisha Hawkins and her team at Military Fasteners are absolutely incredible. We do a lot of Government and Military work and due to this there are a ton of restrictions with what products we can use. I called Military Fasteners (MF) with an extremely HOT request. Trisha was able to source those part numbers, tell me they were in stock and ready to ship. I ordered these on a Wednesday at 4:00pm. They shipped the same exact Wednesday, we received that weeks Friday, even though we were guaranteed Monday/Tuesday. Trisha - THANK YOU! Trisha's Team - THANK YOU! I will only be ordering my military hardware from you all.

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