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Serrated Flange Lock Nut, Plated

Case hardened serrated flange lock nuts eliminate the need for a lock washer or washer, as the flange serves to distribute the bearing load over a greater area. The bearing surface has circular serrations that fan out so that once the serrated flange makes contact with the mating surface, the serrations cut into and displace the mating material upon tightening. All metal lock nuts are resistant to high temperatures and high chemical exposures, as they are made from one material. Dimensional specifications are governed by ASME B18.16.4. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.

Products
Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsCase Hardened

Per ASME B18.16.4-2008
Nominal Diameter		UNC	UNF	F		G		B		H		J	K
				Width Across Flats		Width Across Corners		Flange Diameter		Nut Thickness		Hex Height	Flange Thickness
				Max	Min	Max	Min	Max	Min	Max	Min	Hex Height	Flange Thickness
#6	0.1380	32	40	0.3120	0.3020	0.3610	0.3420	0.4220	0.4060	0.1710	0.1560	0.1000	0.0200
#8	0.1640	32	36	0.3440	0.3340	0.3970	0.3810	0.4690	0.4520	0.2030	0.1870	0.1300	0.0200
#10	0.1900	24	32	0.3750	0.3650	0.4330	0.4160	0.5000	0.4800	0.2190	0.2030	0.1300	0.0300
#12	0.2160	24	28	0.4380	0.4280	0.5050	0.4880	0.5940	0.5740	0.2360	0.2220	0.1400	0.0400
1/4	0.2500	20	28	0.4380	0.4280	0.5050	0.4880	0.5940	0.5740	0.2360	0.2222	0.1400	0.0400
5/16	0.3125	18	24	0.5000	0.4890	0.5770	0.5570	0.6800	0.6600	0.2830	0.2680	0.1700	0.0400
3/8	0.3750	16	24	0.5620	0.5510	0.6500	0.6280	0.7500	0.7280	0.3470	0.3300	0.2300	0.0400
7/16	0.4375	14	20	0.6880	0.6750	0.7940	0.7680	0.9370	0.9100	0.3950	0.3750	0.2600	0.0400
1/2	0.5000	13	20	0.7500	0.7360	0.8660	0.8400	1.0310	1.0000	0.4580	0.4370	0.3100	0.0500
9/16	0.5625	12	18	0.8750	0.8610	1.0100	0.9820	1.1880	1.1550	0.5060	0.4830	0.3500	0.0500
5/8	0.6250	11	18	0.9380	0.9220	1.0830	1.0510	1.2810	1.2480	0.5690	0.5450	0.4000	0.0500
3/4	0.7500	10	16	1.1250	1.0880	1.2990	1.2400	1.5000	1.4600	0.6750	0.6270	0.4600	0.0600
7/8	0.8750	9	14	1.1790	1.1660	1.3610	1.2950	1.6820	*	0.7860	0.7420	*	0.1100

All dimensions are in inches.

Serrated Flange Lock Nut, Plated

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

5/16

0.1560

NFLG 60000

In Stock

$0.08636/EA

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#6-32 SERRATED FLANGE LOCK NUT, PLATED

$0.08636/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.08636/EA
1660	$0.08078/EA
6630	$0.0722/EA
26500	$0.04719/EA

11/32

0.1870

NFLG 80000

In Stock

$0.1076/EA

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#8-32 SERRATED FLANGE LOCK NUT, PLATED

$0.1076/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.1076/EA
2000	$0.10065/EA
7970	$0.08996/EA
35860	$0.0588/EA

#10

3/8

0.2030

NFLG1020000

In Stock

$0.16179/EA

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#10-24 SERRATED FLANGE LOCK NUT, PLATED

$0.16179/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.16179/EA
1430	$0.15133/EA
5700	$0.13527/EA
25650	$0.08841/EA

1/4

7/16

0.2222

NFLG0250000

In Stock

$0.0463/EA

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1/4-20 SERRATED FLANGE LOCK NUT, PLATED

$0.0463/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.0463/EA
1110	$0.04336/EA
4440	$0.03866/EA
19960	$0.02547/EA

5/16

1/2

0.2680

NFLG0310000

In Stock

$0.05962/EA

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5/16-18 SERRATED FLANGE LOCK NUT, PLATED

$0.05962/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.05962/EA
840	$0.05586/EA
3330	$0.04974/EA
14980	$0.03296/EA

3/8

9/16

0.3300

NFLG0370000

In Stock

$0.0923/EA

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3/8-16 SERRATED FLANGE LOCK NUT, PLATED

$0.0923/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.0923/EA
560	$0.08667/EA
2220	$0.07749/EA
9990	$0.05131/EA

1/2

3/4

0.4380

NFLG0500000

In Stock

$0.22043/EA

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1/2-13 SERRATED FLANGE LOCK NUT, PLATED

$0.22043/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.22043/EA
230	$0.20692/EA
910	$0.18345/EA
4090	$0.1236/EA

5/8

15/16

0.5450

NFLG0620000

In Stock

$0.86272/EA

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5/8-11 SERRATED FLANGE LOCK NUT, PLATED

$0.86272/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.86272/EA
80	$0.8105/EA
290	$0.71737/EA
1300	$0.48736/EA

3/4

1 1/8

0.6270

NFLG0750000

In Stock

$1.30681/EA

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3/4-10 SERRATED FLANGE LOCK NUT, PLATED

$1.30681/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.30681/EA
90	$1.22852/EA
340	$1.08644/EA
1500	$0.74235/EA

7/8

1 17/95

NFLG0870000

In Stock

$14.23819/EA

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7/8-9 SERRATED FLANGE LOCK NUT, PLATED

$14.23819/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$14.23819/EA
70	$13.39367/EA
270	$11.83232/EA
1220	$8.14476/EA

ASME B18.16.4	Covers the general, dimensional, and mechanical performance requirements for low strength carbon steel, case hardened, regular and large serrated flange locknuts (inch series), recognized as American National Standard.
ASME B1.1 UNC & UNF Class 2B	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Serrated Flange Lock Nut, Plated

Technical Data

Governing Standards

Governing StandardsCase Hardened

Dimensional Specifications

Dimensional SpecificationsCase Hardened

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Width Across Flats

#6-32 SERRATED FLANGE LOCK NUT, PLATED

#8-32 SERRATED FLANGE LOCK NUT, PLATED

#10-24 SERRATED FLANGE LOCK NUT, PLATED

1/4-20 SERRATED FLANGE LOCK NUT, PLATED

5/16-18 SERRATED FLANGE LOCK NUT, PLATED

3/8-16 SERRATED FLANGE LOCK NUT, PLATED

1/2-13 SERRATED FLANGE LOCK NUT, PLATED

5/8-11 SERRATED FLANGE LOCK NUT, PLATED

3/4-10 SERRATED FLANGE LOCK NUT, PLATED

7/8-9 SERRATED FLANGE LOCK NUT, PLATED