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National Stock Number:
5305-01-181-6100
Federal Supply Class:
5305
National Item Identification Number:
011816100
Description:
SCREW,SHOULDER
Detail:
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.
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Manufacturer Information:
| 12705L-8C-32 | 56878 | SPS TECHNOLOGIES, LLC | | 12705L-8C-32 | 80539 | SPS TECHNOLOGIES, LLC | | 12705L-8C-32C | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| FASTENER LENGTH | 2.730 INCHES MINIMUM AND 2.750 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM | | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | INTERNAL DRIVE STYLE | HEXAGON | | LOCKING FEATURE | PATCH OR PELLET OR STRIP THREADS | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SHOULDER DIAMETER | 0.625 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 1.997 INCHES MINIMUM AND 2.003 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SURFACE TREATMENT | OXIDE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.615 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNRC | | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
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