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National Stock Number:
5305-01-599-7629
Federal Supply Class:
5305
National Item Identification Number:
015997629
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).
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Manufacturer Information:
| 92558A260 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | M | | NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS | | THREAD PITCH IN MILLIMETERS | 1.3 | | THREAD CLASS | 6G | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 20.0 MILLIMETERS NOMINAL | | FASTENER LENGTH | 32.0 MILLIMETERS NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 75000 POUNDS PER SQUARE INCH | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 30.0 MILLIMETERS NOMINAL | | HEAD HEIGHT | 6.0 MILLIMETERS NOMINAL | | POINT STYLE | POINTLESS | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 16.0 MILLIMETERS NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 12.0 MILLIMETERS NOMINAL FIRST SHOULDER | | PART NAME ASSIGNED BY CONTROLLING AGENCY | KNURLED THUMB SCREW WITH SHOULDER |
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