MS21289-08

Military Standard Machine Bolt

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Description:

Fastener Length: 5/8", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 9/16", MS21289 series bolt

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MS21289-08
MS21289-08
MS21289-08
MS21289-08
Add to Cart Up to qty 85 ships same day if ordered before 4pm EST
MS21289-08 Price:
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$10.05 Each
Quantity:
Pre-packaged bag qty: 5 ea
* Sold in increments of 5
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MS21289-08 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.554 inches minimum and 0.625 inches maximum
Fastener Length:
0.625 inches nominal
Head Style:
Double hexagon w/hole
Head Height:
0.330 inches nominal
Width Between Flats:
0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter:
0.438 inches nominal
Extended Washer Thickness:
0.060 inches minimum and 0.070 inches maximum
Hole Diameter:
0.070 inches nominal
Thread Diameter:
0.250 inches
Hole Quantity:
4
Hole Type:
Drilled
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
130000 pounds per square inch
Hardness Rating:
248.0 brinell standard minimum overall and 341.0 brinell standard maximum overall
Minimum Yield Strength:
85000 pounds per square inch
Hole Configuration Style:
Hexagon flats
Surface Finish:
32.0 microinches threads
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Material:
Iron alloy 660 overall
Material Specification:
Ams 5735 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 5/8

Additional Information

SKU / Model: MS2128908
NSN: 5306-00-482-4598
FSC: Bolts / 5306
Product Series: MS21289
Pack Weight (Approx.) 0.084 lb
Minimum Qty (MOQ): 5
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS21289-08_Military-Fasteners-com.pdf
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More MS21289 machine bolts

MS21289-27

Fastener Length: 1-7/8", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 3/4"

MS21289-24

Fastener Length: 1-5/8", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 3/4"

MS21289-23

Fastener Length: 1-9/16", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 3/4"

MS21289-12

Fastener Length: 7/8", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 3/4"

MS21289-10

Fastener Length: 3/4", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 11/16"

MS21289-05

Fastener Length: 7/16in., Hole Diameter: 1/16in., Thread: 1/4-28, Thread Length: 7/16in.

Product Image Gallery

Product code MS21289-08
MS21289-08
MS21289-08
MS21289-08
MS21289-08

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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

Exactly what I needed, very well packaged, fast shipment. I`m pleased with purchase.

5.0

Ive been dealing with you for many years and as usual the service and excellent quality is consistently above average. Its a pleasure to do business with Military Fasteners.

4.0