HT8137-4-12AS

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Description:

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

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HT8137-4-12AS Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.443 inches minimum and 0.510 inches maximum
Fastener Length:
1.203 inches minimum and 1.250 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:
0.740 inches minimum and 0.760 inches maximum
Thready Qty Per Inch (tpi):
28
Countersink Angle:
100.0 degrees nominal
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Special Features:
Furnish with one o ring
Material:
Titanium alloy overall
Material Specification:
Nas621 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Titanium
Length 1-1/4

Additional Information

SKU / Model: HT8137412AS
NSN: 5305-01-132-1063
FSC: Screws / 5305
Product Series: HT8137
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 8108.90.3060
ECCN: EAR99
National Motor Freight: 136500, Metal Noi / Metal Alloys Noi
Download PDF Version
HT8137-4-12AS_Military-Fasteners-com.pdf
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More HT8137 machine screws

HT8137-6-8AS

Fastener Length: 1-11/64", Thread: 3/8-24, Thread Length: 43/64"

HT8137-4-13AS

Fastener Length: 1-5/16", Thread: 1/4-28, Thread Length: 1/2"

HT8137-3-8ASM

Fastener Length: 15/16", Thread: 10-32, Thread Length: 7/16"

HT8137-3-8AS

Fastener Length: 15/16", Thread: 10-32, Thread Length: 7/16"

HT8137-3-6ASM

Fastener Length: 13/16", Thread: 10-32, Thread Length: 7/16"

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Customer Reviews

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Fast, friendly and professional service that only Military Fasteners can provide with every order that I have placed with them.

5.0

I've never received an incorrect order from ACS, even when dealing with small hardware such as nuts, washers, screws, etc. Shipment is always fast and with reasonable shipment prices for my needs. Even my smallest of orders is processed and ship quickly. I'm a long-time ACS customer and I expect I will be for a long time.

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!

5.0

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0