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Industrial Fasteners — Bolts, Studs & Nuts | NR Engineering

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Premium Fasteners for Every Application

Bolts, studs and nuts in alloy steel, stainless steel, duplex, Inconel, Monel, nickel alloy and titanium — manufactured to ASTM, ISO, DIN and customer specifications.

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6Material Families

76Products Listed

90+Export Countries

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By Material & Grade

Explore Our Fastener Range

Every product below is manufactured to order and supplied with full documentation.

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Material

Alloy Steel12
Stainless Steel39
Super Duplex1
Inconel1
Titanium2
Carbon Steel21

Product Category

Hex Bolts (Full Thread)6
Hex Bolts (Half Thread)4
Socket Screws4
Countersunk Socket Screw (CSK)3
Button Head Socket Screws3
Hex Flange Bolt4
Heavy Hex Structural Bolt3
Stud Bolt10
Hex Nut4
Nyloc Lock Nut4
Hex Flange Nut4
Heavy Hex Nut3
Flat Washer3
Fender / Large OD Washer3
Spring Lock Washer3
Hardened Structural Washer2
Threaded Rod4
U-Bolt3
Phillips Head Screw3
Countersunk Machine Screw (Phillips)3

Standard

ASTM A1938
ISO 40176
DIN 6923 / ISO 41614
DIN 6921 / ISO 41624
ISO 47624
ISO 40324
DIN 985 / ISO 105114
DIN 975 / DIN 976-14
DIN 931 / ISO 40144
DIN 7380 / ISO 7380-13
DIN 3570 (Form A)3
DIN 127B3
DIN 125A / ISO 70893
ASME B18.2.2 / ASTM A1943
ASME B18.2.1 / ASTM A3253
DIN 965 / ISO 70463
DIN 9021 / ISO 70933
DIN 7991 / ISO 106423
DIN 7985 / ISO 70453
ASTM F436 / F436M2
ASTM A4531
ASTM A3201

Thread type

Metric Coarse50
UNC17
Non-Threaded9

76 products

Showing 76 products

2H Heavy Hex Nut (A194)

2H Heavy Hex Nut (A194)

ASME B18.2.2 / ASTM A194 · Alloy Steel · A194 Grade 2H · 1/2" – 3"

Size1/2" – 3" · Custom

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B7 Stud Bolt

B7 Stud Bolt

ASTM A193 · Alloy Steel · B7 · M6 – 3"

SizeM6 – 3" · Custom

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SS 304 Hex Bolt (A2-70)

Hex Bolts (Full Thread)

SS 304 Hex Bolt (A2-70)

ISO 4017 · Stainless Steel · 304 · M3 – M64

SizeM3 – M64 · Custom

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SS316 Nut (Standard)

Product Categories

What We Manufacture

Made to your exact design and specification, in metric or imperial.

Hex Bolts (Full Thread)→Hex Bolts (Half Thread)→Socket Screws→Countersunk Socket Screw (CSK)→Button Head Socket Screws→Hex Flange Bolt→Heavy Hex Structural Bolt→Stud Bolt→Hex Nut→Nyloc Lock Nut→Hex Flange Nut→Heavy Hex Nut→Flat Washer→Fender / Large OD Washer→

Can't find a standard size?

We manufacture custom fasteners to your exact drawing and specification.

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Hex Nut

SS316 Nut (Standard)

ISO 4032 · Stainless Steel · 316 · M3 – M64

SizeM3 – M64 · Custom

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Gr 8 Heavy Hex Nut (A194)

ASME B18.2.2 / ASTM A194 · Stainless Steel · 304 · 1/2" – 3"

Size1/2" – 3" · Custom

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Gr 8M (SS316) Heavy Hex Nut (A194)

Gr 8M (SS316) Heavy Hex Nut (A194)

ASME B18.2.2 / ASTM A194 · Stainless Steel · 316 · 1/2" – 3"

Size1/2" – 3" · Custom

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Heavy Hex Structural Bolt

A325 T1 Heavy Hex Structural Bolt

ASME B18.2.1 / ASTM A325 · Alloy Steel · A325 Type 1 · 1/2" – 1-1/2"

Size1/2" – 1-1/2" · Custom

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Heavy Hex Structural Bolt

A325 T3 Heavy Hex Structural Bolt

ASME B18.2.1 / ASTM A325 · Alloy Steel · A325 Type 3 · 1/2" – 1-1/2"

Size1/2" – 1-1/2" · Custom

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Grade 660 (A286) Stud Bolt

Grade 660 (A286) Stud Bolt

ASTM A453 · Stainless Steel · Grade 660 Class A · 1/2" – 3"

Size1/2" – 3" · Custom

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Heavy Hex Structural Bolt

A490 Heavy Hex Structural Bolt

ASME B18.2.1 / ASTM A325 · Alloy Steel · A490 · 1/2" – 1-1/2"

Size1/2" – 1-1/2" · Custom

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12.9 Socket Head Cap Screw

ISO 4762 · Alloy Steel · 12.9 · M3 – M36

SizeM3 – M36 · Custom

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B16 Stud Bolt

B16 Stud Bolt

ASTM A193 · Alloy Steel · B16 · 1/2" – 3"

Size1/2" – 3" · Custom

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B7M (NACE) Stud Bolt

ASTM A193 · Alloy Steel · B7M · 1/2" – 3"

Size1/2" – 3" · Custom

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L7 Stud Bolt

L7 Stud Bolt

ASTM A320 · Alloy Steel · L7 · 1/2" – 3"

Size1/2" – 3" · Custom

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Button Head Socket Screws

10.9 Button Head Socket Screw

DIN 7380 / ISO 7380-1 · Carbon Steel · 10.9 · M3 – M12

SizeM3 – M12 · Custom

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Countersunk Socket Screw (CSK)

10.9 Countersunk Socket Screw (CSK)

DIN 7991 / ISO 10642 · Carbon Steel · 10.9 · M3 – M20

SizeM3 – M20 · Custom

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10.9 Hex Bolt (Full Thread)

Hex Bolts (Full Thread)

10.9 Hex Bolt (Full Thread)

ISO 4017 · Carbon Steel · 10.9 · M3 – M64

SizeM3 – M64 · Custom

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10.9 Hex Bolt (Partial Thread)

Hex Bolts (Half Thread)

10.9 Hex Bolt (Partial Thread)

DIN 931 / ISO 4014 · Carbon Steel · 10.9 · M6 – M64

SizeM6 – M64 · Custom

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Hex Flange Bolt

10.9 Hex Flange Bolt

DIN 6921 / ISO 4162 · Carbon Steel · 10.9 · M5 – M20

SizeM5 – M20 · Custom

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10.9 Threaded Rod (1m / 2m / 3m)

10.9 Threaded Rod (1m / 2m / 3m)

DIN 975 / DIN 976-1 · Carbon Steel · 10.9 · M4 – M48

SizeM4 – M48 · Custom

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Fender / Large OD Washer

200 HV Fender / Large OD Washer

DIN 9021 / ISO 7093 · Carbon Steel · 200 HV · M3 – M20

SizeM3 – M20 · Custom

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200 HV Flat Washer (Form A)

DIN 125A / ISO 7089 · Carbon Steel · 200 HV · M3 – M64

SizeM3 – M64 · Custom

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Countersunk Machine Screw (Phillips)

4.8 Countersunk Machine Screw (Phillips)

DIN 965 / ISO 7046 · Carbon Steel · 4.8 · M2 – M10

SizeM2 – M10 · Custom

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Phillips Head Screw

4.8 Pan Head Machine Screw (Phillips)

DIN 7985 / ISO 7045 · Carbon Steel · 4.8 · M2 – M10

SizeM2 – M10 · Custom

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8.8 Hex Bolt (Full Thread)

Hex Bolts (Full Thread)

8.8 Hex Bolt (Full Thread)

ISO 4017 · Carbon Steel · 8.8 · M3 – M64

SizeM3 – M64 · Custom

View details →

8.8 Hex Bolt (Partial Thread)

Hex Bolts (Half Thread)

8.8 Hex Bolt (Partial Thread)

DIN 931 / ISO 4014 · Carbon Steel · 8.8 · M6 – M64

SizeM6 – M64 · Custom

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Hex Flange Bolt

8.8 Hex Flange Bolt

DIN 6921 / ISO 4162 · Carbon Steel · 8.8 · M5 – M20

SizeM5 – M20 · Custom

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8.8 Threaded Rod (1m / 2m / 3m)

8.8 Threaded Rod (1m / 2m / 3m)

DIN 975 / DIN 976-1 · Carbon Steel · 8.8 · M4 – M48

SizeM4 – M48 · Custom

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8.8 U-Bolt (Pipe Clamp)

DIN 3570 (Form A) · Carbon Steel · 8.8 · M6 – M24

SizeM6 – M24 · Custom

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Class 10 Hex Flange Nut

DIN 6923 / ISO 4161 · Carbon Steel · 10 · M4 – M20

SizeM4 – M20 · Custom

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Class 10 Hex Nut (Standard)

Class 10 Hex Nut (Standard)

ISO 4032 · Carbon Steel · 10 · M3 – M64

SizeM3 – M64 · Custom

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Class 10 Nyloc Lock Nut

DIN 985 / ISO 10511 · Carbon Steel · 10 · M3 – M30

SizeM3 – M30 · Custom

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Class 8 Hex Flange Nut

DIN 6923 / ISO 4161 · Carbon Steel · 8 · M4 – M20

SizeM4 – M20 · Custom

View details →

Class 8 Hex Nut (Standard)

Class 8 Hex Nut (Standard)

ISO 4032 · Carbon Steel · 8 · M3 – M64

SizeM3 – M64 · Custom

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Class 8 Nyloc Lock Nut

DIN 985 / ISO 10511 · Carbon Steel · 8 · M3 – M30

SizeM3 – M30 · Custom

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Hardened Structural Washer

Type 1 Hardened Structural Washer

ASTM F436 / F436M · Alloy Steel · F436 Type 1 · 1/2" – 1-1/2"

Size1/2" – 1-1/2" · Custom

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Hardened Structural Washer

Type 3 Hardened Structural Washer

ASTM F436 / F436M · Alloy Steel · A325 Type 3 · 1/2" – 1-1/2"

Size1/2" – 1-1/2" · Custom

View details →

625 Stud Bolt (Pressure Vessel & Flanges)

625 Stud Bolt (Pressure Vessel & Flanges)

ASTM A193 · Inconel · Alloy 625 UNS N06625 · 1/2" – 3"

Size1/2" – 3" · Custom

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Spring Lock Washer

65Mn Spring Lock Washer

DIN 127B · Alloy Steel · Spring Steel 65Mn · M3 – M36

SizeM3 – M36 · Custom

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Button Head Socket Screws

A2-70 Button Head Socket Screw

DIN 7380 / ISO 7380-1 · Stainless Steel · 304 · M3 – M12

SizeM3 – M12 · Custom

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Countersunk Machine Screw (Phillips)

SS304 Countersunk Machine Screw (Phillips)

DIN 965 / ISO 7046 · Stainless Steel · 304 · M2 – M10

SizeM2 – M10 · Custom

View details →

Countersunk Socket Screw (CSK)

A2-70 Countersunk Socket Screw (CSK)

DIN 7991 / ISO 10642 · Stainless Steel · 304 · M3 – M20

SizeM3 – M20 · Custom

View details →

A2-70 Hex Bolt (Full Thread)

Hex Bolts (Full Thread)

A2-70 Hex Bolt (Full Thread)

ISO 4017 · Stainless Steel · 304 · M3 – M64

SizeM3 – M64 · Custom

View details →

A2-70 Hex Bolt (Partial Thread)

Hex Bolts (Half Thread)

A2-70 Hex Bolt (Partial Thread)

DIN 931 / ISO 4014 · Stainless Steel · 304 · M6 – M64

SizeM6 – M64 · Custom

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Hex Flange Bolt

A2-70 Hex Flange Bolt

DIN 6921 / ISO 4162 · Stainless Steel · 304 · M5 – M20

SizeM5 – M20 · Custom

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SS304 Hex Nut (Standard)

SS304 Hex Nut (Standard)

ISO 4032 · Stainless Steel · 304 · M3 – M64

SizeM3 – M64 · Custom

View details →

Phillips Head Screw

SS304 Pan Head Machine Screw (Phillips)

DIN 7985 / ISO 7045 · Stainless Steel · 304 · M2 – M10

SizeM2 – M10 · Custom

View details →

A2-70 Socket Head Cap Screw

ISO 4762 · Stainless Steel · 304 · M3 – M36

SizeM3 – M36 · Custom

View details →

SS304 Threaded Rod (1m / 2m / 3m)

SS304 Threaded Rod (1m / 2m / 3m)

DIN 975 / DIN 976-1 · Stainless Steel · 304 · M4 – M48

SizeM4 – M48 · Custom

View details →

Fender / Large OD Washer

SS304 Fender / Large OD Washer

DIN 9021 / ISO 7093 · Stainless Steel · 304 · M3 – M20

SizeM3 – M20 · Custom

View details →

SS304 Flat Washer (Form A)

DIN 125A / ISO 7089 · Stainless Steel · 304 · M3 – M64

SizeM3 – M64 · Custom

View details →

A2 Hex Flange Nut

DIN 6923 / ISO 4161 · Stainless Steel · 304 · M4 – M20

SizeM4 – M20 · Custom

View details →

A2 Nyloc Lock Nut

DIN 985 / ISO 10511 · Stainless Steel · 304 · M3 – M30

SizeM3 – M30 · Custom

View details →

Spring Lock Washer

SS304Spring Lock Washer

DIN 127B · Stainless Steel · 304 · M3 – M36

SizeM3 – M36 · Custom

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SS304 U-Bolt (Pipe Clamp)

DIN 3570 (Form A) · Stainless Steel · 304 · M6 – M24

SizeM6 – M24 · Custom

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B8 Stud Bolt (Pressure Vessel & Flanges)

B8 Stud Bolt (Pressure Vessel & Flanges)

ASTM A193 · Stainless Steel · B8 Class 1 · 1/2" – 3"

Size1/2" – 3" · Custom

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Button Head Socket Screws

A4-70 Button Head Socket Screw

DIN 7380 / ISO 7380-1 · Stainless Steel · 316 · M3 – M12

SizeM3 – M12 · Custom

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Countersunk Machine Screw (Phillips)

SS316 Countersunk Machine Screw (Phillips)

DIN 965 / ISO 7046 · Stainless Steel · 316 · M2 – M10

SizeM2 – M10 · Custom

View details →

Countersunk Socket Screw (CSK)

A4-70 Countersunk Socket Screw (CSK)

DIN 7991 / ISO 10642 · Stainless Steel · 316 · M3 – M20

SizeM3 – M20 · Custom

View details →

Phillips Head Screw

SS316 Pan Head Machine Screw (Phillips)

DIN 7985 / ISO 7045 · Stainless Steel · 316 · M2 – M10

SizeM2 – M10 · Custom

View details →

SS316 Threaded Rod (1m / 2m / 3m)

SS316 Threaded Rod (1m / 2m / 3m)

DIN 975 / DIN 976-1 · Stainless Steel · 316 · M4 – M48

SizeM4 – M48 · Custom

View details →

A4-80 Hex Bolt (Full Thread)

Hex Bolts (Full Thread)

A4-80 Hex Bolt (Full Thread)

ISO 4017 · Stainless Steel · A4-80 · M3 – M64

SizeM3 – M64 · Custom

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A4-80 Hex Bolt (Partial Thread)

Hex Bolts (Half Thread)

A4-80 Hex Bolt (Partial Thread)

DIN 931 / ISO 4014 · Stainless Steel · A4-80 · M6 – M64

SizeM6 – M64 · Custom

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Hex Flange Bolt

A4-80 Hex Flange Bolt

DIN 6921 / ISO 4162 · Stainless Steel · A4-80 · M5 – M20

SizeM5 – M20 · Custom

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A4-80 Socket Head Cap Screw

ISO 4762 · Stainless Steel · A4-80 · M3 – M36

SizeM3 – M36 · Custom

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SS 316 Stud Bolt (A4-80)

SS 316 Stud Bolt (A4-80)

ASTM A193 · Stainless Steel · A4-80 · 1/2" – 3"

Size1/2" – 3" · Custom

View details →

Fender / Large OD Washer

SS316 Fender / Large OD Washer

DIN 9021 / ISO 7093 · Stainless Steel · 316 · M3 – M20

SizeM3 – M20 · Custom

View details →

SS316 Flat Washer (Form A)

DIN 125A / ISO 7089 · Stainless Steel · 316 · M3 – M64

SizeM3 – M64 · Custom

View details →

A4 Hex Flange Nut

DIN 6923 / ISO 4161 · Stainless Steel · 316 · M4 – M20

SizeM4 – M20 · Custom

View details →

A4 Nyloc Lock Nut

DIN 985 / ISO 10511 · Stainless Steel · 316 · M3 – M30

SizeM3 – M30 · Custom

View details →

Spring Lock Washer

SS316 Spring Lock Washer

DIN 127B · Stainless Steel · 316 · M3 – M36

SizeM3 – M36 · Custom

View details →

SS316 U-Bolt (Pipe Clamp)

DIN 3570 (Form A) · Stainless Steel · 316 · M6 – M24

SizeM6 – M24 · Custom

View details →

B8M Stud Bolt (Pressure Vessel & Flanges)

B8M Stud Bolt (Pressure Vessel & Flanges)

ASTM A193 · Stainless Steel · A4-80 · 1/2" – 3"

Size1/2" – 3" · Custom

View details →

2507 Stud Bolt (Pressure Vessel & Flanges)

2507 Stud Bolt (Pressure Vessel & Flanges)

ASTM A193 · Super Duplex · UNS S32750 · 1/2" – 3"

Size1/2" – 3" · Custom

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Gr5 Hex Bolt (Full Thread)

Hex Bolts (Full Thread)

Gr5 Hex Bolt (Full Thread)

ISO 4017 · Titanium · Gr5 · M3 – M64

SizeM3 – M64 · Custom

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Gr5 Socket Head Cap Screw

ISO 4762 · Titanium · Gr5 · M3 – M36

SizeM3 – M36 · Custom

View details →

Spring Lock Washer→

Hardened Structural Washer→

Threaded Rod→

Phillips Head Screw→

Countersunk Machine Screw (Phillips)→