-158C
NSN 5305-00-242-4784

MFG SPS TECHNOLOGIES, LLC
NEW GOV SURPLUS
SUPPLIER CAGE 03EF7

ITEM NAME:   SCREW,MACHINE

DEFINITION:  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.

             



CHARACTERISTIC                          VALUE

THREAD CLASS                            3A                                                

THREAD DIRECTION                        RIGHT-HAND                                        

THREAD LENGTH                           0.481 INCHES MINIMUM AND 0.562 INCHES MAXIMUM     

FASTENER LENGTH                         0.531 INCHES MINIMUM AND 0.562 INCHES MAXIMUM     

HEAD STYLE                              PAN                                               

HEAD DIAMETER                           0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM     

HEAD HEIGHT                             0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM     

INTERNAL DRIVE STYLE                    CROSS RECESS TYPE 1                               

NOMINAL THREAD DIAMETER                 0.112 INCHES                                      

THREAD QUANTITY PER INCH                40                                                

MINIMUM TENSILE STRENGTH                160000 POUNDS PER SQUARE INCH                     

SCREW MATERIAL                          IRON ALLOY 660                                    

SCREW MATERIAL DOCUMENT AND             AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE        

CLASSIFICATION                                                                            

SCREW SURFACE TREATMENT                 PASSIVATE                                         

SCREW SURFACE TREATMENT                 MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT        

DOCUMENT AND CLASSIFICATION             RESPONSE                                          

THREAD SERIES DESIGNATOR                UNJC