Spec hardware, served at warp speed.

bolts › machine bolts

MS9566-10

Military Standard Machine Bolt

View quote list → Saved parts →

Description

Fastener Length: 3/4", Hole Diameter: 1/16", Thread: 1/4-28, Thread Length: 21/32

Specifications

Extended Washer Diameter 0.438
Extended Washer Thickness 0.060 inches minimum and 0.070 inches maximum
Fastener Length 0.750
Features Provided Finished head
Head Height 0.300
Head Style Double hexagon w/hole
Hole Configuration Style Double hexagon longitudinal hole
Hole Diameter 0.070
Hole Quantity 4
Hole Type Drilled
Length 3/4
Material Iron
Material Specification Ams 5731 assn std single material response
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.651 inches minimum and 0.671 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 1/4
Width Between Flats 0.312

Cross-reference

No interchangeable or dimensionally similar parts are on record for MS9566-10. Try the cross-reference lookup to search by a different part number.

Catalog data updated 2026-07-05. Report a data error