SCREW-MACHINE
P/N AN507
NSN 5305 00 151 3245
MFG AERONAUTICAL STANDARDS
 
NEW GOV SURPLUS
 
 
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                            2A                                                
THREAD DIRECTION                        RIGHT-HAND                                        
THREAD LENGTH                           0.938 INCHES MINIMUM                              
FASTENER LENGTH                         0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM     
HEAD STYLE                              FLAT COUNTERSUNK                                  
HEAD DIAMETER                           0.348 INCHES MINIMUM AND 0.385 INCHES MAXIMUM     
INTERNAL DRIVE STYLE                    CROSS RECESS TYPE 1                               
NOMINAL THREAD DIAMETER                 0.190 INCHES                                      
THREAD QUANTITY PER INCH                32                                                
MINIMUM TENSILE STRENGTH                55000 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 2330                                   
SCREW MATERIAL DOCUMENT AND             SAE ASSN STD SINGLE MATERIAL RESPONSE             
CLASSIFICATION                                                                            
SCREW SURFACE TREATMENT                 CADMIUM                                           
SCREW SURFACE TREATMENT                 QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT      
DOCUMENT AND CLASSIFICATION             RESPONSE                                          
MANUFACTURERS CODE                      81348                                             
NON-DEFINITIVE GOVERNMENT               AN507                                             
SPEC/STD REFERENCE                                                                        
NON-DEFINITIVE GOVERNMENT               FF-S-92B TYPE 3 STYLE 3C                          
SPEC/STD REFERENCE                                                                        
SPEC/STD CONTROLLING DATA               88044                                             
MANUFACTURERS CODE                                                                        
THREAD SERIES DESIGNATOR                UNF                                               
NONDEFINITIVE SPEC/STD DATA             3 TYPE AND 3C STYLE                               
DEPARTURE FROM CITED                    AS MODIFIED BY MATL,MIN TENSILE STRENGTH AND      
DESIGNATOR                              HARDNESS RATING