FlexLoc® Light Hex Thin Height Lock Nuts

FlexLoc® Light Hex Thin 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
6	.138	.313	.305	.305	.347	.141	.181	.036	1,270	1,420
8	.164	.345	.336	.336	.383	.188	.208	.070	1,960	2,060
10	.190	.376	.367	.367	.419	.188	.230	.065	2,340	2,800
1/4	.250	.439	.430	.430	.491	.219	.293	.075	4,450	5,090
5/16	.3125	.502	.492	.492	.561	.266	.356	.097	4,980	5,510
3/8	.375	.564	.553	.553	.631	.282	.418	.108	7,360	8,340
7/16	.4375	.627	.616	.616	.703	.328	.487	.138	10,100	11,300
7/16	.4375	.690	.679	.679	.775	.328	.487	.120	-	11,300
1/2	.500	.752	.741	.741	.846	.328	.551	.121	11,400	12,800
5/8	.625	.940	.928	.928	1.059	.399	.676	.147	18,100	20,500
3/4	.750	1.064	1.052	1.052	1.200	.415	.807	.155	26,800	29,800
7/8	.875	1.252	1.239	1.239	1.414	.477	.938	.166	36,940	40,800
1	1.000	1.440	1.427	1.427	1.628	.571	1.064	.218	48,500	53,000
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. The thin height variety is approximately 30% shorter than the full height nut.
Applications & Advantages	The thin height light hex lock nut is used when an insufficient number of projectin threads are present to use a full height nut. 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 Full Height	FlexLoc® Heavy Hex Full Height	FlexLoc® Heavy Hex Thin Height