|
|
|
National Stock Number:
5305-00-196-5147
Federal Supply Class:
5305
National Item Identification Number:
001965147
Description:
THUMBSCREW
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
|
Manufacturer Information:
|
Techincal Specification:
| FASTENER LENGTH | 3.750 INCHES NOMINAL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM THREADS | | HEAD HEIGHT | 1.000 INCHES NOMINAL | | HEAD STYLE | THUMB NO. 7 | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE THREADS | | MATERIAL | STEEL COMP 4140 THREADS | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | POINT DIAMETER | 0.688 INCHES NOMINAL | | POINT LENGTH | 0.344 INCHES NOMINAL | | POINT STYLE | UNIVERSAL | | POINT SWIVEL INCLUDED ANGLE | 8.0 DEGREES NOMINAL | | SPECIAL FEATURES | ITEM ALSO HAS PLASTIC PAD COVER 4140 H.T. FOR SCREW POINT AND HANDLE | | WIDTH BETWEEN FLATS | 1.500 INCHES NOMINAL | | SURFACE TREATMENT | OXIDE THREADS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.406 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNC |
|
|