ST3M571-4-18

Bolt

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Description:

Fastener Length: 1-37/64", Thread: 1/4-28, Thread Length: 29/64"

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ST3M571-4-18 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.443 inches minimum and 0.493 inches maximum
Fastener Length:
1.578 inches minimum and 1.608 inches maximum
Head Style:
Double hexagon w/hole
Head Height:
0.290 inches minimum and 0.310 inches maximum
Width Between Flats:
0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter:
0.428 inches minimum and 0.438 inches maximum
Extended Washer Thickness:
0.059 inches minimum and 0.079 inches maximum
Grip Diameter:
0.2490 inches minimum and 0.2495 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
1.115 inches minimum and 1.135 inches maximum
Thready Qty Per Inch (tpi):
28
Material:
Steel comp xm-13 overall
Material Specification:
Ams 5629 assn std single material response overall
Surface Treatment:
Passivate overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-19/32

Additional Information

SKU / Model: ST3M571418
NSN: 5306-01-027-5249
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
ST3M571-4-18_Military-Fasteners-com.pdf
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More ST3M571 machine bolts

ST3M571-8H46

Fastener Length: 3-21/32in., Hole Diameter: in., Thread: 1/2-20, Thread Length: 25/32in.

ST3M571-8D46

Fastener Length: 3-21/32", Thread: 1/2-20, Thread Length: 25/32"

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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Customer Reviews

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As normal with Military Fasteners for many years, no issues. I order the parts needed and they send them. Just fair prices and good service.

4.0

AS Always fast and great service by all.

5.0

I've probably had over 50 separate orders over the past. Every one was delivered promptly and was correct.

5.0

Received exactly as ordered, exactly when promised. Superb customer service as always.

4.0