ST3M735-4-21

Bolt

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Description:

Fastener Length: 1-3/4", Thread: 1/4-28, Thread Length: 21/64"

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ST3M735-4-21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.283 inches minimum and 0.334 inches maximum
Fastener Length:
1.731 inches minimum and 1.751 inches maximum
Head Style:
Dished hexagon
Head Height:
0.126 inches minimum and 0.141 inches maximum
Width Between Flats:
0.430 inches minimum and 0.439 inches maximum
Grip Diameter:
0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Thread Diameter:
0.250 inches
Grip Length:
1.312 inches minimum and 1.328 inches maximum
Thready Qty Per Inch (tpi):
28
Hardness Rating:
36.0 rockwell c minimum overall and 43.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center:
1.631 inches minimum first hole and 1.641 inches maximum first hole
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Special Features:
Retaining element in shank
Material:
Steel comp e4340 overall or steel comp 4340 overall or steel comp 8740 overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-3/4

Additional Information

SKU / Model: ST3M735421
NSN: 5306-01-054-2523
FSC: Bolts / 5306
Product Series: ST3M735
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
ST3M735-4-21_Military-Fasteners-com.pdf
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ST3M735C4-13

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ST3M735-5-58

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ST3M735-5-45

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ST3M735-4-98

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ST3M735-4-9

Fastener Length: 0-63/64", Thread: 1/4-28, Thread Length: 21/64"

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