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National Stock Number:
5305-00-298-4689
Federal Supply Class:
5305
National Item Identification Number:
002984689
Description:
SCREW,MACHINE
Detail:
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.
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Manufacturer Information:
| 22029 | 35510 | PRESTOLITE ELECTRIC INC | | FF-B-575 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | Z114 022029 | 35510 | PRESTOLITE ELECTRIC INC |
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Techincal Specification:
| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY SLOTTED HEAD INTERNAL WRENCHING | | FASTENER LENGTH | 0.312 INCHES NOMINAL | | HARDNESS RATING | 70.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM | | HEAD HEIGHT | 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM | | HEAD STYLE | SQUARE | | INTERNAL DRIVE STYLE | SLOT | | MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 8-32UNC SIZE AND 5/16IN. LENGTH | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | 81343-SAE J429,GRADE 1 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A307 ASSN STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES | | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE | | SPECIFICATION/STANDARD DATA | 81348-FF-B-575 GOVERNMENT SPECIFICATION | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.312 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH BETWEEN FLATS | 0.234 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
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