Military Standards - Machine Screw - MS24694-S4
Standard Part
Description: Machine Screw
Part Number: MS24694-S4
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Alternate Part Numbers: AN509-807, AN509R8-7, 828348-00, Z00.N5150624004, 9932958
Product Overview
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.
Item Specification
| Thread Class | 3A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.266 inches minimum and 0.406 inches maximum | |
| Fastener Length | 0.453 inches minimum and 0.500 inches maximum | |
| Head Style | Flat countersunk | |
| Head Diameter | 0.283 inches minimum and 0.332 inches maximum | |
| Internal Drive Style | Cross recess type 1 | |
| Nominal Thread Diameter | 0.164 inches | |
| Thread Quantity per Inch | 32 | |
| Minimum Tensile Strength | 125000 pounds per square inch | |
| Hardness Rating | 26.0 rockwell C minimum and 32.0 rockwell C maximum | |
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum | |
| Screw Material | Steel comp 8630 or steel comp 4037 | |
| Screw Material Document and Classification | MIL-S-6050 mil spec 1ST material response or ams 6300 assn std 2ND material response | |
| Screw Surface Treatment | Cadmium and chromate | |
| Screw Surface Treatment Document and Classification | QQ-P-416, ty 2, cl 3 fed spec all treatment responses | |
| Thread Series Designator | UNC |