screws › machine screws
MS27039C0830
Military Standard Screw
Description
Fastener Length: 1-15/16", Thread: 1/2-20, Thread Length: 13/16"
Specifications
| Fastener Length | 1.953 |
|---|---|
| Head Diameter | 0.958 inches minimum and 0.987 inches maximum |
| Head Height | 0.327 inches minimum and 0.348 inches maximum |
| Head Style | Pan no. 2 |
| Internal Drive Style | Cross recess type ii |
| Length | 1 15/16 |
| Material | CRES |
| Part Name Assigned By Controlling Agency | Screw, machine, pan head, structural, cross recessed |
| Screw Material | Steel corrosion resisting |
| Screw Material Specification | Ams5731 or ams 5732 assn std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Ams 2700 method 1 type 2 or 8 class 1 test method 102 assn std single treatment response |
| Special Features | Specific material heat and corrosion resistant steel, a286 iron base super alloy;grip length 1.125 inches nominal;end chamfered 0.047 x 45 deg;r1 on pan head min 0.020 inches and max 0.30 inches nominal;ultimate tensile load 20000 pounds;ultimate double shear load 29400 pounds;ultimate tensile strength 130000 psi;head marking: basic part nbr and applicable dash nbr;material-c;mfr trade mark-location optional |
| Specification Data | 80205-ms27039 rev f dtd nov 1995 superseded by nasm 27039 rev 2 nov 2007 national std/spec |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.828 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNF |
| Thread Size | 1/2 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS27039C0830. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error