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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