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National Stock Number: 5305-01-516-6271
Federal Supply Class: 5305
National Item Identification Number: 015166271
Description: SCREW,CAP,HEXAGON HEAD
Detail: An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
91257A758 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
FASTENER LENGTH | 5.000 INCHES NOMINAL | HEAD HEIGHT | 0.313 INCHES NOMINAL | HEAD STYLE | HEXAGON | PART NAME ASSIGNED BY CONTROLLING AGENCY | CAP SCREW | MATERIAL | STEEL OVERALL | NOMINAL THREAD DIAMETER | 0.500 INCHES | SPECIAL FEATURES | GRADE 8, 0.500 IN FASTENER DIAMETER, ROCKWELL HARDNESS C33-39, 150000PSI MINIMUM TENSILE STRENGTH | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | THREAD CLASS | FINE | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.250 INCHES NOMINAL | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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