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Grade C Nylon Insert Lock Nut, Plated

Grade C nylon insert lock nuts are hex nuts that have a nylon collar insert in one end of the nut. The nylon insert increases friction on the screw thread, which resists loosening. Dimensional specifications are governed by ASME B18.16.6. The nylon insert lock nut is an economic locking nut and ideal in applications where vibration or motion could loosen or undo the nut. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsGrade C

Per ASME B18.16.6-2017
Nominal Diameter		UNC	UNF	A			B	C		D
				Width Across Flats			Width Across Corners	Thickness		Hex Height
				Basic	Max	Min	Min	Max	Min	Min
#2	0.086	56		1/4	0.251	0.243	0.268	0.153	0.133	0.081
#3	0.099	48		1/4	0.251	0.243	0.268	0.153	0.133	0.081
#4	0.112	40		1/4	0.251	0.243	0.268	0.153	0.133	0.081
#5	0.125	40		1/4	0.251	0.243	0.268	0.153	0.133	0.081
#6	0.138	32	40	5/16	0.313	0.305	0.339	0.188	0.168	0.103
#8	0.164	32	36	11/32	0.345	0.336	0.374	0.239	0.219	0.140
#10	0.190	24	32	3/8	0.376	0.243	0.410	0.249	0.229	0.140
#12	0.216	24	28	1/4	0.439	0.430	0.482	0.328	0.298	0.225
1/4	0.250	20	28	7/16	0.439	0.430	0.482	0.328	0.298	0.225
5/16	0.313	18	24	1/2	0.502	0.492	0.552	0.359	0.329	0.250
3/8	0.375	16	24	9/16	0.564	0.553	0.622	0.468	0.438	0.335
7/16	0.438	14	20	5/8	0.627	0.616	0.698	0.468	0.438	0.324
1/2	0.500	13	20	3/4	0.752	0.741	0.837	0.609	0.579	0.464
9/16	0.563	12	18	7/8	0.877	0.865	0.978	0.656	0.626	0.469
5/8	0.625	11	18	15/16	0.940	0.928	1.051	0.765	0.735	0.593
3/4	0.750	10	16	1 1/8	1.064	1.052	1.191	0.890	0.861	0.742
7/8	0.875	9	14	1 5/16	1.252	1.239	1.403	0.999	0.969	0.790
1	1.000	8	14	1 1/2	1.440	1.427	1.615	1.078	1.016	0.825
1 1/8	1.125	7	12	1 11/16	1.627	1.614	1.826	1.203	1.410	0.930
1 1/4	1.250	7	12	1 7/8	1.815	1.801	2.038	1.422	1.360	1.125
1 1/2	1.500	6	12	2 1/4	2.197	2.159	2.444	1.640	1.578	1.313

All dimensions are in inches.

Grade C Nylon Insert Lock Nut, Plated

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

1/4

7/16

0.2980

NNIP025G8

In Stock

$0.08087/EA

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1/4-20 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.08087/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.08087/EA
1110	$0.07574/EA
4420	$0.06753/EA
19870	$0.04449/EA

1/4

7/16

0.2980

NNIP025G8F

In Stock

$0.16605/EA

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1/4-28 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.16605/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.16605/EA
1110	$0.15551/EA
4420	$0.13866/EA
19870	$0.09134/EA

5/16

1/2

0.3290

NNIP031G8

In Stock

$0.07479/EA

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5/16-18 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.07479/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.07479/EA
830	$0.07006/EA
3320	$0.06239/EA
14910	$0.04135/EA

5/16

1/2

0.3290

NNIP031G8F

In Stock

$0.2161/EA

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5/16-24 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.2161/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.2161/EA
830	$0.20245/EA
3320	$0.18029/EA
14910	$0.11948/EA

3/8

9/16

0.4380

NNIP037G8

In Stock

$0.12058/EA

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3/8-16 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.12058/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.12058/EA
560	$0.11322/EA
2220	$0.10124/EA
9980	$0.06703/EA

3/8

9/16

0.4380

NNIP037G8F

In Stock

$0.40654/EA

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3/8-24 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.40654/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.40654/EA
560	$0.38172/EA
2220	$0.34133/EA
9980	$0.22599/EA

7/16

5/8

0.4380

NNIP043G8

In Stock

$0.21332/EA

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7/16-14 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.21332/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.21332/EA
440	$0.20011/EA
1740	$0.17759/EA
7820	$0.11916/EA

7/16

5/8

0.4380

NNIP043G8F

In Stock

$0.36359/EA

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7/16-20 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.36359/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.36359/EA
440	$0.34108/EA
1740	$0.3027/EA
7820	$0.2031/EA

1/2

3/4

0.5790

NNIP050G8

In Stock

$0.29827/EA

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1/2-13 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.29827/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.29827/EA
240	$0.27999/EA
930	$0.24823/EA
4190	$0.16725/EA

1/2

3/4

0.5790

NNIP050G8F

In Stock

$0.87999/EA

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1/2-20 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.87999/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.87999/EA
240	$0.82606/EA
930	$0.73234/EA
4190	$0.49343/EA

9/16

7/8

0.6260

NNIP056G8

In Stock

$0.74151/EA

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9/16-12 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.74151/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.74151/EA
150	$0.69607/EA
570	$0.6171/EA
2540	$0.41578/EA

9/16

7/8

0.6260

NNIP056G8F

In Stock

$0.58114/EA

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9/16-18 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.58114/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.58114/EA
150	$0.54553/EA
570	$0.48364/EA
2540	$0.32586/EA

5/8

15/16

0.7350

NNIP062G8

In Stock

$0.49132/EA

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5/8-11 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.49132/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.49132/EA
130	$0.46158/EA
490	$0.40855/EA
2170	$0.27755/EA

5/8

15/16

0.7350

NNIP062G8F

In Stock

$0.71985/EA

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5/8-18 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.71985/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.71985/EA
130	$0.67628/EA
490	$0.59858/EA
2170	$0.40665/EA

3/4

1 1/8

0.8610

NNIP075G8

In Stock

$0.68154/EA

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3/4-10 GRADE C NYLON INSERT LOCK NUT, PLATED

$0.68154/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.68154/EA
90	$0.64071/EA
340	$0.56661/EA
1500	$0.38715/EA

3/4

1 1/8

0.8610

NNIP075G8F

In Stock

$1.1787/EA

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3/4-16 GRADE C NYLON INSERT LOCK NUT, PLATED

$1.1787/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.1787/EA
90	$1.10808/EA
340	$0.97993/EA
1500	$0.66957/EA

7/8

1 5/16

0.9690

NNIP087G8

In Stock

$1.62313/EA

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7/8-9 GRADE C NYLON INSERT LOCK NUT, PLATED

$1.62313/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.62313/EA
60	$1.52686/EA
230	$1.34887/EA
1000	$0.92849/EA

7/8

1 5/16

0.9690

NNIP087G8F

In Stock

$4.30492/EA

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7/8-14 GRADE C NYLON INSERT LOCK NUT, PLATED

$4.30492/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$4.30492/EA
60	$4.04958/EA
230	$3.57751/EA
1000	$2.46257/EA

1 1/2

1.0160

NNIP100G8

In Stock

$2.07232/EA

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1-8 GRADE C NYLON INSERT LOCK NUT, PLATED

$2.07232/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.07232/EA
40	$1.9509/EA
150	$1.72205/EA
640	$1.19129/EA

1 1/2

1.0160

NNIP100G8F

In Stock

$2.62309/EA

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1-14 GRADE C NYLON INSERT LOCK NUT, PLATED

$2.62309/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.62309/EA
40	$2.46939/EA
150	$2.17972/EA
640	$1.5079/EA

1 1/8

11/16

1.4100

NNIP112G8

In Stock

$7.10326/EA

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1 1/8-7 GRADE C NYLON INSERT LOCK NUT, PLATED

$7.10326/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$7.10326/EA
30	$6.69389/EA
110	$5.90648/EA
500	$4.12233/EA

1 1/8

11/16

1.4100

NNIP112G8F

3-5 Working Days

$25.96606/EA

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1 1/8-12 GRADE C NYLON INSERT LOCK NUT, PLATED

$25.96606/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$25.96606/EA
30	$24.4696/EA
110	$21.59123/EA
500	$15.06923/EA

1 1/4

1 7/8

1.3600

NNIP125G8

In Stock

$8.00948/EA

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1 1/4-7 GRADE C NYLON INSERT LOCK NUT, PLATED

$8.00948/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$8.00948/EA
25	$7.54788/EA
80	$6.66002/EA
500	$4.64824/EA

1 1/4

1 7/8

1.3600

NNIP125G8F

In Stock

$17.36872/EA

See Quantity Discounts

1 1/4-12 GRADE C NYLON INSERT LOCK NUT, PLATED

$17.36872/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$17.36872/EA
25	$16.36773/EA
80	$14.44239/EA
500	$10.07982/EA

Grade C Nylon Insert Lock Nut, Plated

Technical Data

Governing Standards

Governing StandardsGrade C

Dimensional Specifications

Dimensional SpecificationsGrade C

Grade

Diameter

Thread Pitch

Thread Type

Width Across Flats

1/4-20 GRADE C NYLON INSERT LOCK NUT, PLATED

1/4-28 GRADE C NYLON INSERT LOCK NUT, PLATED

5/16-18 GRADE C NYLON INSERT LOCK NUT, PLATED

5/16-24 GRADE C NYLON INSERT LOCK NUT, PLATED

3/8-16 GRADE C NYLON INSERT LOCK NUT, PLATED

3/8-24 GRADE C NYLON INSERT LOCK NUT, PLATED

7/16-14 GRADE C NYLON INSERT LOCK NUT, PLATED

7/16-20 GRADE C NYLON INSERT LOCK NUT, PLATED

1/2-13 GRADE C NYLON INSERT LOCK NUT, PLATED

1/2-20 GRADE C NYLON INSERT LOCK NUT, PLATED

9/16-12 GRADE C NYLON INSERT LOCK NUT, PLATED

9/16-18 GRADE C NYLON INSERT LOCK NUT, PLATED

5/8-11 GRADE C NYLON INSERT LOCK NUT, PLATED

5/8-18 GRADE C NYLON INSERT LOCK NUT, PLATED

3/4-10 GRADE C NYLON INSERT LOCK NUT, PLATED

3/4-16 GRADE C NYLON INSERT LOCK NUT, PLATED

7/8-9 GRADE C NYLON INSERT LOCK NUT, PLATED

7/8-14 GRADE C NYLON INSERT LOCK NUT, PLATED

1-8 GRADE C NYLON INSERT LOCK NUT, PLATED

1-14 GRADE C NYLON INSERT LOCK NUT, PLATED

1 1/8-7 GRADE C NYLON INSERT LOCK NUT, PLATED

1 1/8-12 GRADE C NYLON INSERT LOCK NUT, PLATED

1 1/4-7 GRADE C NYLON INSERT LOCK NUT, PLATED

1 1/4-12 GRADE C NYLON INSERT LOCK NUT, PLATED