HT271A4-8

Screw

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Description:

Fastener Length: 63/64", Thread: 1/4-28, Thread Length: 1/2"

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HT271A4-8 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.442 inches minimum and 0.509 inches maximum
Fastener Length:
0.952 inches minimum and 0.999 inches maximum
Head Style:
Flat countersunk undercut
Head Diameter:
0.502 inches minimum and 0.507 inches maximum
Head Height:
0.071 inches minimum and 0.073 inches maximum
Grip Diameter:
0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style:
High-torque
Thread Diameter:
0.250 inches
Grip Length:
0.490 inches minimum and 0.510 inches maximum
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.5 degrees minimum and 100.5 degrees maximum
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Special Features:
Furnished with one o-ring seal
Material:
Titanium alloy overall
Material Specification:
Nas621 comp 6al-4v assn std single material response overall or ams4928 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Titanium
Length 63/64

Additional Information

SKU / Model: HT271A48
NSN: 5305-00-283-7455
FSC: Screws / 5305
Product Series: HT271A4
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 10 EA
Schedule B: 8108.90.3060
ECCN: EAR99
National Motor Freight: 136500, Metal Noi / Metal Alloys Noi
Download PDF Version
HT271A4-8_Military-Fasteners-com.pdf
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I just started an Ultra Light project and have been very happy with the orders I've placed with ACS.

5.0

I have only ordered from Military Fasteners once so far, but I can't even express how happy I was with our order. As a purchasing manager who deals with government contracts (and the strict requirements that come with them), I was beyond thrilled with the flawless paperwork that was provided (free of charge) with the products we ordered. Lindsey was a peach to interact with, and we received our order next day; one of the perks of having a warehouse close by. I am very much so looking forward to to ordering from them again! Response from the owner3 years ago Thank you so much Holly for the kind words. We constantly try and think of new ways to improve the experience for our customers. We strive to make the package presentation upon arrival how we would want as a customer. It truly is an honor to service our customers that support our government and military branches.

5.0

Great service and Very fast. Ramona was a great help. Keep up the great work!!

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