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Tri-Lock Nut, Galvanized

Tri Lock style lock nuts are all metal prevailing torque lock nuts with a conical top and a flat bottom bearing surface with chamfered corners. The thread distortion on the top thread of the nut makes it frictionally resistant to rotation. Dimensional specifications are governed by ASME B18.2.2. Available in galvanized finish for corrosion resistance.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsGrade A

Per ASME B18.2.2-2015
Nominal Diameter		UNC	UNF	F			G		H
				Width Across Flats			Width Across Corners		Thickness
				Basic	Max	Min	Max	Min	Basic	Max	Min
1/4	0.2500	20	28	7/16	0.4380	0.4280	0.5050	0.4880	7/32	0.2260	0.2120
5/16	0.3125	18	24	1/2	0.5000	0.4890	0.5770	0.5570	17/64	0.2730	0.2580
3/8	0.3750	16	24	9/16	0.563	0.551	0.65	0.628	21/64	0.3370	0.3200
7/16	0.4375	14	20	11/16	0.6880	0.6750	0.7940	0.7680	3/8	0.3850	0.3650
1/2	0.5000	13	20	3/4	0.7500	0.7300	0.8660	0.8400	7/16	0.4480	0.4270
9/16	0.5625	12	18	7/8	0.8750	0.8610	1.0100	0.9820	31/64	0.4960	0.4730
5/8	0.6250	11	18	15/16	0.9380	0.9220	1.0830	1.0510	35/64	0.5590	0.5350
3/4	0.7500	10	16	1 1/8	1.1250	1.0880	1.2990	1.2400	41/64	0.6650	0.6170
7/8	0.8750	9	14	1 5/16	1.3120	1.2690	1.5160	1.4470	3/4	0.7760	0.7240
1	1.0000	8	14	1 1/2	1.5000	1.4500	1.7320	1.6530	55/64	0.8870	0.8310
1 1/8	1.1250	7	12	1 11/16	1.6880	1.6310	1.9490	1.8590	31/32	0.9990	0.9390
1 1/4	1.2500	7	12	1 7/8	1.8750	1.8120	2.1650	2.0660	1 1/16	1.0940	1.0300
1 3/8	1.3750	6	12	2 1/16	2.0620	1.9940	2.3820	2.2730	1 11/16	1.2060	1.3800
1 1/2	1.5000	6	12	2 1/4	2.2500	2.1750	2.5980	2.4800	1 9/32	1.3170	1.2450
1 5/8	1.6250	5.5	12	2 7/16	2.4300	2.3500	2.8050	2.6790	1 25/64	1.4160	1.3640
1 3/4	1.7500	5	12	2 5/8	2.6250	2.5380	3.0310	2.8930	1 1/2	1.5400	1.4600
1 7/8	1.8750	5	12	2 9/16	2.8130	2.7220	3.2470	3.1030	1 5/8	1.6510	1.5670
2	2.0000	4.5	12	3	3.0000	2.9000	3.4640	3.3060	1 23/32	1.7630	1.6750

All dimensions are in inches.

Tri-Lock Nut, Galvanized

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Diameter Thread Pitch Width Across Flats Height of Nut Item # Availability Price Quantity UOM

1/4

7/16

0.2188

NTLG0250000

In Stock

$0.17572/EA

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1/4-20 TRI-LOC LOCK NUT, GALVANIZED

$0.17572/EA

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Quantity	Price
Quantity	Price
1	$0.17572/EA
1360	$0.16576/EA
5420	$0.14614/EA
24370	$0.10293/EA

5/16

1/2

0.2656

NTLG0310000

In Stock

$0.21007/EA

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5/16-18 TRI-LOC LOCK NUT, GALVANIZED

$0.21007/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.21007/EA
910	$0.19816/EA
3620	$0.1747/EA
16290	$0.12305/EA

ASME B18.2.2	Covers the complete general and dimensional data for the various types of inch series square and hex nuts, including machine screw nuts and coupling nuts.
ASME B1.1 UNC & UNF Class 2B	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Tri-Lock Nut, Galvanized

Technical Data

Governing Standards

Governing StandardsGrade A

Dimensional Specifications

Dimensional SpecificationsGrade A

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1/4-20 TRI-LOC LOCK NUT, GALVANIZED

5/16-18 TRI-LOC LOCK NUT, GALVANIZED