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3a
0.9687in. ⁓31/32"
flat countersunk
0.491in. and 0.507in.
cross recess type 1
28
unf
Unf
28
Flat countersunk
3a
FSC 5305 ⁓ Screws
unf thread series 28 thread quantity per inch flat countersunk head style 3a thread class
1. | AN509DD416R15 | Cage 88044 |
Nothing similar to this part number was found in our inventory
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.