Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
CAGE Information
Code | Company |
---|---|
06950 | ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
AATN | SHOULDER DIAMETER | 0.264 INCHES MINIMUM FIRST SHOULDER AND 0.265 INCHES MAXIMUM FIRST SHOULDER |
THSD | THREAD SERIES DESIGNATOR | UNJF |
MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
FEAT | SPECIAL FEATURES | SOCKET DRIVE RECESS IN THREAD END,0.095 IN. NOM. WIDTH ACROSS FLATS |
AASK | HEAD STYLE | FILLISTER COUNTERSUNK |
AAJD | THREAD CLASS | 3A |
CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
CMLP | THREAD QUANTITY PER INCH | 28 |
AAJF | THREAD DIRECTION | RIGHT-HAND |
CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
AASA | THREAD LENGTH | 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 23-112,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
AASB | FASTENER LENGTH | 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM |
AATX | SHOULDER LENGTH | 0.447 INCHES NOMINAL FIRST SHOULDER |
AASL | HEAD DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
AASU | HEAD HEIGHT | 0.015 INCHES MAXIMUM |
ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |