NAS4204U12

Bolt

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Description:

Fastener Length: 1-3/16", Thread: 1/4-28, Thread Length: 27/64"

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NAS4204U12 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.425 inches nominal
Fastener Length:
1.160 inches minimum and 1.190 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.4564 inches minimum and 0.508 inches maximum
Grip Diameter:
0.249 inches minimum and 0.250 inches maximum
Internal Drive Style:
Tri-wing recess
Thread Diameter:
0.250 inches
Grip Length:
0.740 inches minimum and 0.760 inches maximum
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
125.0 microinches grip
Surface Finish:
125.0 microinches top of head
Surface Finish:
32.0 microinches bearing surface of head
Surface Finish:
32.0 microinches threads
Material:
Iron alloy 660 overall
Material Specification:
Ams 5731 assn std single material response overall or ams 5737,uns k66286 assn std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Supplementary Features:
Tri-wing recess no. nas4000-6
Thread Series Designator:
Unjf
Specification Data:
80205-nas4003 professional/industrial association standard and 80205-nas4204/canceled/ professional/industrial association standard
Nondefinitive Specification/std Data:
1 class and a type and 3 table and 0.250-28 size
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 1-3/16

Additional Information

SKU / Model: NAS4204U12
NSN: 5305-01-297-8020
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: EAR99
Download PDF Version
NAS4204U12_Military-Fasteners-com.pdf
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I've been ordering from Military Fasteners for quite a few years now and have always been completely satisfied with their service. Being not to swift with my laptop, I place my orders by phone and always receive quick response.

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Fast friendly amazing to work with, some of my favorite people work there!!! First choice Always!!!!

5.0

Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!

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As always great service with fast shipping. That's why I always choose military fasteners first for my aircraft needs. Thanks.

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