Nuts

All Metal - Center Lock and Top Lock

A wide variety of all metal locking nuts are available. If you don't see something listed, feel free to give us a call or send an email. Chances are we've done it!

Inch Sizes

Available in 18-8, 316, Brass, Bronze, Grade 2, 5, 8, and Monel

Nut dimensions p/ANSI-ASME B18.2.2

Jam, Machine and Regular styles

Size Ranges from #2 – ½", Fine and Coarse Thread

Metric Sizes

Available in A2 (18-8), A4 (316) , Brass and various Steel grades

Nut dimensions p/DIN 439, DIN934

Size ranges from 2mm to 12mm

Nylon Insert Lock

Inch Sizes

Available off the shelf in 18-8, 316, Grades 2, 5 & 8, Monel and Brass

Regular Height, Thin Pattern and Heavy

Size Ranges from #2 – 1" diameter, Fine and Coarse Thread

Metric Sizes

Available off the shelf in A2 (18-8), A4 (316), Class 8 and 10

Size ranges from 2.5mm to 20mm

See full dimensional data

A	B		C	D		E	F
Nominal Size	Width Across Flats		Width Across Corners	Height		Hex Height	Bearing Surface Diameter
	Max	Min	Min	Max	Min	Min (Ref)	Min
1/4	0.439	0.430	0.488	0.328	0.298	0.225	0.416
5/16	0.502	0.489	0.557	0.359	0.329	0.250	0.475
3/8	0.564	0.551	0.628	0.468	0.438	0.335	0.534
7/16	0.627	0.616	0.698	0.468	0.438	0.324	0.597
1/2	0.752	0.736	0.840	0.609	0.579	0.464	0.712
9/16	0.877	0.861	0.982	0.656	0.626	0.469	0.830
5/8	0.940	0.922	1.051	0.765	0.735	0.593	0.890
3/4	1.064	1.052	1.191	0.890	0.860	0.742	1.033
7/8	1.252	1.239	1.403	0.999	0.969	0.790	1.230
1	1.440	1.427	1.619	1.078	1.016	0.825	1.418

GET A QUOTE

Thin Pattern Lock

Inch Sizes

Available off the shelf in 18-8, 316, Grades 2, 5 & 8, Monel and Brass

Regular Height, Thin Pattern and Heavy

Size Ranges from #2 – 1" diameter, Fine and Coarse Thread

Metric Sizes

Available off the shelf in A2 (18-8), A4 (316), Class 8 and 10

Size ranges from 2.5mm to 20mm

See full dimensional data

	F		H		I	G
	Width Across Flats		Thickness		Side Height	Width Across Corners
Nominal Size or Basic Thread Diameter	Max	Min	Max	Min	Ref	Ref
1/4 (.250)	0.502	0.492	0.296	0.266	0.194	0.552
5/16 (.3125)	0.564	0.553	0.328	0.298	0.212	0.622
3/8 (.375)	0.690	0.679	0.421	0.391	0.251	0.766
7/16 (.4375)	0.752	0.741	0.453	0.423	0.316	0.837
1/2 (.500)	0.877	0.865	0.546	0.516	0.360	0.978
5/8 (.625)	1.064	1.052	0.624	0.594	0.428	1.191
3/4 (.750)	1.252	1.239	0.718	0.688	0.488	1.403
7/8 (.875)	1.440	1.427	0.796	0.766	0.535	1.615
1	1.627	1.614	0.922	0.860	0.600	1.826

GET A QUOTE

AN, MS, NAS, NASM

NASM parts are available when the AN/MS/NAS number has been cancelled or superseded.

Sizes

MS21046

MS21083

MS21084

MS21085

MS21224

MS35649

MS35650

MS51971

MS51972

NAS509

NAS671

NAS679

MS14144

MS14145

MS14146

MS17825

MS17826

MS17828

MS17829

MS17830

MS21042

MS21043

MS21044

MS21045

DFAR compliant and full certifications are available.

With so many to choose from, if you don’t see it listed? Give us a call!

Self-Locking "Keps" Type

Inch Sizes

Available off the shelf in 18-8 and Carbon Steel w/RoHS compliance

#4 thru 3/8" diameter, coarse and fine thread

Finished Nut dimensions and some Small Pattern Nut dimensions

Internal Tooth K-Lock and External Tooth K-Lock

Metric Sizes

Available off the shelf in 18-8 and Steel Class 8 w/RoHS compliance

Size ranges from 2.5mm to 8mm

Internal Tooth K-Lock and External Tooth K-Lock

See full dimensional data

A	B		C	D		E	F
Nominal Size	Width Across Flats		Width Across Corners	Height		Hex Height	Bearing Surface Diameter
	Max	Min	Min	Max	Min	Min (Ref)	Min
1/4	0.439	0.430	0.488	0.328	0.298	0.225	0.416
5/16	0.502	0.489	0.557	0.359	0.329	0.250	0.475
3/8	0.564	0.551	0.628	0.468	0.438	0.335	0.534
7/16	0.627	0.616	0.698	0.468	0.438	0.324	0.597
1/2	0.752	0.736	0.840	0.609	0.579	0.464	0.712
9/16	0.877	0.861	0.982	0.656	0.626	0.469	0.830
5/8	0.940	0.922	1.051	0.765	0.735	0.593	0.890
3/4	1.064	1.052	1.191	0.890	0.860	0.742	1.033
7/8	1.252	1.239	1.403	0.999	0.969	0.790	1.230
1	1.440	1.427	1.619	1.078	1.016	0.825	1.418

GET A QUOTE

Hex Nuts

A wide variety of hex nuts are available. If you don't see something listed, feel free to give us a call or send an email. Chances are we've done it!

Sizes

Inch Sizes

Available in 18-8, 316, Brass, Bronze, Grade 2, 5, 8, and Monel

Nut dimensions p/ANSI-ASME B18.2.2

Jam, Machine and Regular styles

Size Ranges from #2 – ½", Fine and Coarse Thread

Metric Sizes

Available in A2 (18-8), A4 (316) , Brass and various Steel grades

Nut dimensions p/DIN 439, DIN934

Size ranges from 2mm to 12mm

See full dimensional data

	F		G		H		H*
Nominal Size or Basic Major Diameter of Thread	Width Across Flats		Width Across Corners		Thickness Hex Nuts		Thickness Jam Nuts
	Max	Min	Max	Min	Max	Min	Max	Min
1/4 (.25)	0.438	0.428	0.505	0.488	0.226	0.212	0.163	0.150
5/16 (.3215)	0.500	0.489	0.577	0.557	0.273	0.258	0.195	0.180
3/8 (.375)	0.563	0.551	0.650	0.628	0.337	0.320	0.227	0.210
7/16 (.4375)	0.688	0.675	0.794	0.768	0.385	0.365	0.260	0.240
1/2 (.50)	0.750	0.736	0.866	0.840	0.448	0.427	0.323	0.302
9/16 (.5625)	0.875	0.861	1.010	0.982	0.496	0.473	0.324	0.301
5/8 (.625)	0.938	0.922	1.083	1.051	0.559	0.535	0.387	0.363
3/4 ( .75)	1.125	1.088	1.299	1.240	0.665	0.617	0.446	0.398
7/8 (.875)	1.312	1.269	1.516	1.447	0.776	0.724	0.510	0.458
1	1.5	1.45	1.732	1.653	0.887	0.831	0.575	0.519

GET A QUOTE

Nuts

Off the shelf in 18-8, 316, Grade 5 & 8, Monel®, brass, bronze and other materials.

All Metal - Center Lock and Top Lock

Nylon Insert Lock

Nuts

AN, MS, NAS, NASM

Self-Locking "Keps" Type

Hex Nuts

Retaining Rings, Groove Pins, Spring Pins, we are much more than threaded product!

Nuts

Off the shelf in 18-8, 316, Grade 5 & 8, Monel®, brass, bronze and other materials.

All Metal - Center Lock and Top Lock

Nylon Insert Lock

Nylon Insert Lock Dimensional Data

Nuts

Thin Pattern Lock Dimensional Data

AN, MS, NAS, NASM

Self-Locking "Keps" Type

Nylon Insert Lock Dimensional Data

Hex Nuts

Hex Nuts Dimensional Data

Retaining Rings, Groove Pins, Spring Pins, we are much more than threaded product!