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Sales Systems Limited Products and Services > Fasteners > Nuts > Machine Screw Nuts > Hex Machine Screw Nuts > Item # HMSN03125XXX  
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Item # HMSN03125XXX, Hex Machine Screw Nut, with 0.650" Width Across Corner



  • Hexagon machine screw nuts shall have tops flat with chamfered corners. Diameter of top circle shall be equal to the maximum width across flats within a tolerance of minus 15 percent. The bearing surface shall be perpendicular to the axis of the threaded hole pitch cylinder within a tolerance of 4 deg.
  • Bottoms of hexagon machine screw nuts are normally flat, but for special purposes may be chamfered, if so specified by purchaser.
  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.





Manufacturer  · Specifications  · Codes and Standards

Manufacturer

Manufacturer

Industrial Fasteners Institute


Specifications

Product

Machine Screw Nuts

Unit of Measure

English

Nominal Size or Basic Thread Dia.

5/16 in

Nominal Size or Basic Thread Dia. (Decimal)

0.3125 in

Basic Width Across Flats (F)

9/16 in

Max. Width Across Flats (F)

0.562 in

Min. Width Across Flats (F)

0.545 in

Max. Width Across Corners (G1)

0.650 in

Min. Width Across Corners (G1)

0.621 in

Max. Thickness (H)

0.225 in

Min. Thickness (H)

0.208 in


Codes and Standards

Codes and Standards

ANSI/ASME B18.6.3 1998


Distributor of Industry Standard and Military Specification Threaded Fasteners