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	Tensile Strength (psi)
		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.

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.

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