ST3M571-5D21

Bolt

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Description:

Fastener Length: 1-7/8", Thread: 1/4-24, Thread Length: 37/64"

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ST3M571-5D21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.516 inches minimum and 0.586 inches maximum
Fastener Length:
1.838 inches minimum and 1.888 inches maximum
Head Style:
Double hexagon w/hole
Head Height:
0.338 inches minimum and 0.358 inches maximum
Width Between Flats:
0.367 inches minimum and 0.376 inches maximum
Extended Washer Diameter:
0.521 inches minimum and 0.531 inches maximum
Extended Washer Thickness:
0.072 inches minimum and 0.092 inches maximum
Grip Diameter:
0.3115 inches minimum and 0.3120 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.081 inches maximum first hole
Thread Diameter:
0.312 inches
Grip Length:
1.302 inches minimum and 1.322 inches maximum
Thready Qty Per Inch (tpi):
24
Min. Tensile Strength (psi):
220000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center:
1.630 inches minimum first hole and 1.690 inches maximum first hole
Material:
Steel corrosion resisting overall
Surface Treatment:
Passivate overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 24
Material Stainless Steel
Length 1-7/8

Additional Information

SKU / Model: ST3M5715D21
NSN: 5306-00-281-7172
FSC: Bolts / 5306
Product Series: ST3M571
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
ST3M571-5D21_Military-Fasteners-com.pdf
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ST3M571-8D46

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ST3M571-8-18

Fastener Length: 1-29/32", Thread: 1/2-20, Thread Length: 25/32"

ST3M571-8-12

Fastener Length: 1-17/32", Thread: 1/2-20, Thread Length: 25/32"

ST3M571-7H28

Fastener Length: 2-15/32", Hole Diameter: ", Thread: 3/8-20, Thread Length: 23/32"

ST3M571-6H23

Fastener Length: 2-1/16", Hole Diameter: ", Thread: 3/8-24, Thread Length: 5/8"

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Props to my saleslady (whose name I have sadly forgotten) for her can do attitude. Fast and efficient yet friendly and thorough. The items arrived nicely padded with brown paper. Im so happy youve stopped using those hard-to-dispose-of styrofoam peanuts. Fast to ship reasonable prices. Just excellent all around!

4.0

I can say that Military Fasteners was able to deliver the part to me very quickly. I live in a very remote area in the Tennessee mountains and typically have to wait up to two weeks to receive deliveries. Sometimes, the delivery guys cannot find my house at all, and they have to leave my packages at the local general store. But with Military Fasteners, my packages always find my front door step and in great condition. This package arrived nearly a week earlier than expected, and that was over the New Years holiday! Great work, Military Fasteners, on your delivery service. Thanks!

4.0

Very good service, as usual. Order was complete and correct. It is easy to order on your website and the deliveries are always in the specified time.

5.0

It is very good service. I appreciate Brittany Cornish provide us the parts we ordered.

5.0