HT4009-4-8

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Description:

Fastener Length: 29/32", Thread: 1/4-28, Thread Length: 27/64"

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HT4009-4-8 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.372 inches minimum and 0.422 inches maximum
Fastener Length:
0.882 inches minimum and 0.912 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.456 inches minimum and 0.508 inches maximum
Shoulder Diameter:
0.2802 inches minimum first shoulder and 0.2807 inches maximum first shoulder
Shoulder Length:
0.395 inches minimum first shoulder and 0.415 inches maximum first shoulder
Internal Drive Style:
High-torque
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape:
Round first shoulder
Special Features:
Socket drive recess in thread end 0.0947 in. min and 0.0967 in. max width across flats
Material:
Steel comp xm-13 overall
Material Specification:
Ams5629 assn std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 29/32

Additional Information

SKU / Model: HT400948
NSN: 5305-01-046-0704
FSC: Screws / 5305
Product Series: HT4009
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.2010
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
HT4009-4-8_Military-Fasteners-com.pdf
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More HT4009 machine screws

HT4009-4-13

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

HT4009-4-11

Fastener Length: 1-3/32", Thread: 1/4-28, Thread Length: 27/64"

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I was looking for hard to find parts for a safety critical application. The first couple of places I tried had the part on their web page but when I tried to order it they said, sorry, they did not actually have the parts. I called Military Fasteners. Talked to an employee without delay. She looked up the part number, told me who manufactured them (important), where the company is located (very important) and shipped the parts immediately from their own inventory. Super nice, helpful, efficient and knowledgeable. They get it.

5.0

Everything was professional. Never talked to anyone, just online order.

5.0

I have been a customer for years and have never had a problem with any orders. Please keep up the good work :)

4.0

We worked with Ramona at Military Fasteners for a few items that we needed right away to complete a job. Ramona processed our order quickly and efficiently and made the experience stress free when it could have been quite challenging. The items came with all the correct documentation too which was also very important to us.

5.0