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Heavy Hex Nuts for Use with Structural Bolts
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Heavy Hex Nuts for Use with Structural Bolts
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Unification.
Only the 9/16 size is not unified dimensionally with British and Canadian standards.
Tops and Bearing Surfaces of Nuts.
Nuts may be double chamfered or have washer faced bearing surface and chamfered top.
The of chamfer circle on double chamfered nuts and diameter of washer face shall be within the limits of the maximum width across flats and 95% of the minimum width across flats.
The tops of washer faced nuts shall be flat and the diameter of chamfer circle shall be equal to the maximum width across flats within a tolerance of -15%. The length of chamfer at hex corners shall be 5% to 15% of the basic thread diameter. The surface of chamfer may be slightly convex or rounded.
Bearing surfaces shall be flat and, unless otherwise specified, shall be perpendicular to the axis of the threaded hole within the total run out (FIM) tabulated for the respective nut size, type, and strength level.
Position of Hexagon to Tapped Hole.
At maximum material condition, the axis of nut body shall be located at true position with respect to the axis of the tapped hole within a tolerance zone having a diameter equivalent to 4% of the maximum width across flats for 1-1/2" nominal size nuts or smaller.
Countersink.
Tapped hole shall be countersunk on the bearing face or faces. The maximum countersink diameter shall be 1.08 times the thread basic (nominal) major diameter. No part of the threaded portion shall project beyond the bearing surface.
Corner Fill.
A rounding or lack of fill at junction of hex corners with chamfer shall be permissible provided the width across corners is within specified limits at and beyond a distance equal to 17.5% of the basic thread diameter from the chamfered faces.
Width Across Flats.
Maximum width across flats shall not be exceeded.
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Results 1 - 9 of 9
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Item #
Description
Nominal Size or Basic Major Diameter of Thread
Nominal (F)
Max. (F)
Max. (G)
Nominal (H)
Max. (H)
HHNSB05000XXX
Heavy Hex Nut for Use with Structural Bolts, with 7/8" Width Across Flat
1/2
in
7/8
in
0.875
in
1.010
in
31/64
in
0.504
in
HHNSB06250XXX
Heavy Hex Nut for Use with Structural Bolts, with 1-1/16" Width Across Flat
5/8
in
1-1/16
in
1.062
in
1.227
in
39/64
in
0.631
in
HHNSB07500XXX
Heavy Hex Nut for Use with Structural Bolts, with 1-1/4" Width Across Flat
3/4
in
1-1/4
in
1.250
in
1.443
in
47/64
in
0.758
in
HHNSB08750XXX
Heavy Hex Nut for Use with Structural Bolts, with 1-7/16" Width Across Flat
7/8
in
1-7/16
in
1.438
in
1.660
in
55/64
in
0.885
in
HHNSB10000XXX
Heavy Hex Nut for Use with Structural Bolts, with 1-5/8" Width Across Flat
1
in
1-5/8
in
1.625
in
1.876
in
63/64
in
1.012
in
HHNSB11250XXX
Heavy Hex Nut for Use with Structural Bolts, with 1-13/16" Width Across Flat
1-1/8
in
1-13/16
in
1.812
in
2.093
in
1-7/64
in
1.139
in
HHNSB12500XXX
Heavy Hex Nut for Use with Structural Bolts, with 2" Width Across Flat
1-1/4
in
2
in
2.000
in
2.309
in
1-7/32
in
1.215
in
HHNSB13750XXX
Heavy Hex Nut for Use with Structural Bolts, with 2-3/16" Width Across Flat
1-3/8
in
2-3/16
in
2.188
in
2.526
in
1-11/32
in
1.378
in
HHNSB15000XXX
Heavy Hex Nut for Use with Structural Bolts, with 2-3/8" Width Across Flat
1-1/2
in
2-3/8
in
2.375
in
2.742
in
1-15/32
in
1.505
in
Results 1 - 9 of 9
1
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