Flexloc® heavy hex full height lock nuts

**FlexLoc® Heavy Hex Full Height Lock Nuts - SPS**
Nominal Size or Basic Major Thread Diameter	F	B	G	H	P	I	Tensile Strength (psi)
Width Across Flats	Bearing Surface O.D.	Width Across Corners	Thickness	Bearing Surface I.D.	Side Height
Max	Min	Min	Min	Max	Max	Min	Min	Min
1/4	.250	1/2	.502	.492	.492	.561	.290	.293	.094	5,730
5/16	.3125	9/16	.564	.553	.553	.631	.321	.356	.113	9,600
3/8	.375	5/8	.627	.616	.616	.703	.384	.418	.144	13,800
7/16	.4375	3/4	.752	.741	.741	.846	.446	.487	.163	14,900
1/2	.500	13/16	.814	.803	.803	.917	.509	.551	.196	11,400
5/8	.625	1	1.002	.990	.990	1.130	.634	.676	.245	34,000
3/4	.750	1-1/8	1.127	1.115	1.115	1.271	.759	.807	.325	50,000
7/8	.875	1-5/16	1.314	1.301	1.301	1.484	.884	.938	.397	64,600
1	1.000	1-1/5	1.502	1.489	1.489	1.699	1.009	1.064	.462	85,000
FlexLoc® is a registered trademark of SPS Technologies, Inc. Our stop nuts are not manufactured by or connected with the producers of FlexLoc® nuts.

FlexLoc® Heavy Hex Full Height Lock Nuts - SPS

Nominal Size or
Basic Major
Thread Diameter

Tensile
Strength
(psi)

Width
Across Flats

Bearing
Surface
O.D.

Width
Across
Corners

Thickness

Bearing
Surface
I.D.

Side
Height

Max

Min

Max

Min

1/4

.250

1/2

.502

.492

.561

.290

.293

.094

5,730

5/16

.3125

9/16

.564

.553

.631

.321

.356

.113

9,600

3/8

.375

5/8

.627

.616

.703

.384

.418

.144

13,800

7/16

.4375

3/4

.752

.741

.846

.446

.487

.163

14,900

1/2

.500

13/16

.814

.803

.917

.509

.551

.196

11,400

5/8

.625

1.002

.990

1.130

.634

.676

.245

34,000

3/4

.750

1-1/8

1.127

1.115

1.271

.759

.807

.325

50,000

7/8

.875

1-5/16

1.314

1.301

1.484

.884

.938

.397

64,600

1.000

1-1/5

1.502

1.489

1.699

1.009

1.064

.462

85,000

FlexLoc® is a registered trademark of SPS Technologies, Inc.
Our stop nuts are not manufactured by or connected with the producers of FlexLoc® nuts.

**FlexLoc® Heavy Hex Full Height Lock Nuts Properties**
Description	An all metal, one piece, hex shaped lock nut with a round collar at it back end. The collar is segmented with opposed slots cut into it above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands creating the torque locking action.
Applications & Advantages	The full height heavy hex lock nut has the greatest locking capability and largest wrenching area of all the FlexLoc® nuts. FlexLoc® nuts maintain their locking strength through 15 removals and re-applications, and at temperatures up to 550°F (450°F if zinc or cadmium plated). They have superior resistance to vibration compared to all the other lock nut varieties and do not gall threads.
Material	Carbon steel
Plating	Unless specified as plain steel, usually supplied as zinc, zinc yellow, or cadmium finish. See plating page for more information.

FlexLoc® Heavy Hex Full Height Lock Nuts Properties

Description

An all metal, one piece, hex shaped lock nut with a round collar at it back end. The collar is segmented with opposed slots cut into it above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands creating the torque locking action.

Applications
& Advantages

The full height heavy hex lock nut has the greatest locking capability and largest wrenching area of all the FlexLoc® nuts. FlexLoc® nuts maintain their locking strength through 15 removals and re-applications, and at temperatures up to 550°F (450°F if zinc or cadmium plated). They have superior resistance to vibration compared to all the other lock nut varieties and do not gall threads.

Material

Carbon steel

Plating

Unless specified as plain steel, usually supplied as zinc, zinc yellow, or cadmium finish.
See plating page for more information.

For a more comprehensive list of lock nuts check out our Nuts List

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Smith Fastener Company, A California Corporation - 3613 East Florence Avenue, Bell, California, 90201 - Phone: ( 323 ) 587-0382 and ( 800 ) 764-8488 - FAX: ( 323 ) 587-8712 - E-mail: sales@smithfast.com - Copyright © 2004 by Smith Fastener Company - Please report website problems to: WebMaster - Last updated: November 9th, 2004
http://www.smithfast.com/flexlocHHFHlocknuts.html

See also:
FlexLoc® Light Hex Full Height	FlexLoc® Light Hex Thin Height	FlexLoc® Heavy Hex Thin Height