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National Stock Number:
5305-13-010-0532
Federal Supply Class:
5305
National Item Identification Number:
130100532
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:
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Techincal Specification:
| FASTENER LENGTH | 31.98 MILLIMETERS MINIMUM AND 32.22 MILLIMETERS MAXIMUM | | HARDNESS RATING | 140.0 BRINELL STANDARD MINIMUM OVERALL AND 160.0 BRINELL STANDARD MAXIMUM OVERALL | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | ALUMINUM ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.25 INCHES | | SHOULDER DIAMETER | 7.94 MILLIMETERS MINIMUM OVERALL AND 8.0 MILLIMETERS MAXIMUM OVERALL | | SHOULDER SHAPE | ROUND OVERALL | | SHOULDER LENGTH | 23.53 MILLIMETERS MINIMUM OVERALL AND 23.67 MILLIMETERS MAXIMUM OVERALL | | SPECIAL FEATURES | MIN. YIELD STRENGTH:420.0 NEWTONS/SQ. MM; HEAD STYLE:FLAT CHAMBER, 1.88 MIN.-2.12 MAX. MM HEAD HEIGHT, 17.36 MIN.-17.52 MAX. MM HEAD DIA. | | SURFACE TREATMENT | ANODIZE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 6.8 MILLIMETERS NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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