FlexLoc® Light Hex Full Height Lock Nuts

FlexLoc® Light 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	Course Thread	Fine Thread
		Max	Min	Min	Min	Max	Max	Min	Min	Min
4	.112	.251	.243	.243	.277	.155	.155	.050	1,080	1,190
6	.138	.313	.305	.305	.347	.180	.181	.075	1,620	1,890
8	.164	.345	.336	.336	.383	.243	.208	.105	2,510	2,620
10	.190	.376	.367	.367	.419	.243	.230	.085	3,120	3,590
1/4	.250	.439	.430	.430	.491	.290	.293	.122	5,730	-
1/4	.250	.439	.430	.430	.491	.320	.293	.135	-	6,550
5/16	.3125	.502	.492	.492	.561	.353	.356	.150	9,600	9,950
3/8	.375	.564	.553	.553	.631	.462	.418	.210	13,800	14,500
7/16	.4375	.627	.616	.616	.703	.462	.487	.210	14,900	15,450
1/2	.500	.752	.741	.741	.846	.602	.551	.285	22,000	23,800
5/8	.625	.940	.928	.928	1.059	.759	.676	.410	34,000	38,400
3/4	.750	1.064	1.052	1.052	1.200	.884	.807	.505	50,000	52,300
7/8	.875	1.252	1.239	1.239	1.414	1.009	.938	.570	64,600	71,400
1	1.000	1.440	1.427	1.427	1.628	1.134	1.064	.635	85,000	90,500
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. The light hex variety has a lesser accross the flats dimension resulting in a lighter weight part with the same strength as a heavy hex variety.
Applications & Advantages	The full height light hex lock nut has the same locking capability as the heavy hex FlexLoc® nut, but with greater whench clearance. 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	Plain unless specified. Usually supplied as zinc, zinc yellow, or cadmium finish. See plating page for more information.

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