Nylon Insert Stop Nuts, Heavy Hex, Steel

Lock Nut image Smitty checking to see if our lock nut information is good. Lock Nut image


Nominal Size or
Basic Major
Thread Diameter
F H I G
Width
Across Flats
Thickness Side
Height
Width
Across Corners
Basic Max Min Max Min Ref Ref
1/4 .2500 1/2 .503 .489 .390 .360 .290 .556
5/16 .3125 9/16 .566 .551 .453 .423 .335 .624
3/8 .3750 11/16 .691 .675 .562 .532 .392 .763
7/16 .4375 3/4 .754 .736 .609 .579 .464 .829
1/2 .5000 7/8 .879 .861 .718 .688 .544 .969
5/8 .6250 1-1/16 1.067 1.045 .874 .844 .677 1.175
3/4 .7500 1-1/4 1.255 1.231 1.015 .895 .790 1.382
7/8 .8750 1-7/16 1.444 1.417 1.140 1.110 .883 1.589
1 1.0000 1-5/8 1.632 1.602 1.312 1.250 1.000 1.796



Heavy Hex Properties

Description A heavy hex nut with a nylon filled collar at its back end. When a screw or bolt reaches the collar, the threads and nylon form a tight frictional fit, restricting movement between the nut and bolt or screw when subjected to vibration. The nylon insert comes in various colors.
Applications
& Advantages
Has greater surface area than standard series nuts, making wrenching easier. Designed for use with screws and bolts which have a minimum tensile strength of not greater than 90,000 psi. Used in bridge and building construction, material handling, heavy equipment and oil field machinery. Nylon insert nuts are not designed to be used at temperatures over 250°F.
Material 1/4 thru 5/8: AISI 1008 - 1010 or equivalent steel
3/4 thru 1 inch: AISI C1117 or equivalent steel
Hardness Rockwell C28 maximum
Proof Load 90,000 psi
Plating See plating page for more information.



Return to top of page


See also:
Nylon Insert Nuts
Light Hex
Grade 8
Nylon Insert Nuts
Light Hex
Thin Pattern
Nylon Insert Nuts
Light Hex
Standard Pattern
Nylon Insert Nuts
Heavy Hex
Thin Pattern




Smith Fastener Company • 8181 State Street, South Gate, California 90280
Phone: ( 323 ) 587-0382 • FAX: ( 323 ) 587-8712 • E-mail: sales@smithfast.com
Copyright © 2009 by Smith Fastener Company

Hitch Pins | Construction/Lifting | Blind Rivets | Dowel Pins | Cotter Pins | Nuts, Bolts, Screws, Washers
Threaded Inserts | Anchors | Pins | Automotive | Weatherhead Pipe Fittings | Cutting Tools