About Threaded Studs and Rods
More
About Hex Head Screws and Bolts
More
About Socket Head Screws
More
Alloy Steel Socket Head Screws
With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Screws that meet ASME B18.3, ASME B18.3.1M, ISO 21269, and ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Min. Thread Lg., mm | Thread Spacing  | Dia., mm | Ht., mm | Drive Size, mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
M22 × 2.5 mm | |||||||||||
Black-Oxide Class 12.9 Alloy Steel | |||||||||||
| 40 | Fully Threaded | __ | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 00000 |
| 50 | Fully Threaded | __ | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 60 | Fully Threaded | __ | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 70 | Fully Threaded | __ | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 80 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 100 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 110 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
| 120 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 | 170,000 | DIN 912, ISO 4762 | 1 | 000000000 | 0000 |
18-8 Stainless Steel Socket Head Screws
Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
Metric screws are also known as A2 stainless steel screws.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
Screws that meet ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (formerly DIN 912) comply with standards for dimensions.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Min. Thread Lg., mm | Thread Spacing | Dia., mm | Ht., mm | Drive Size, mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
M22 × 2.5 mm | |||||||||||
18-8 Stainless Steel | |||||||||||
| 50 | Fully Threaded | __ | Coarse | 33 | 22 | 17 mm | 70,000 | DIN 912 | 1 | 000000000 | 000000 |
| 70 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 mm | 70,000 | DIN 912 | 1 | 000000000 | 00000 |
| 90 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 mm | 70,000 | DIN 912 | 1 | 000000000 | 00000 |
| 120 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 mm | 70,000 | DIN 912 | 1 | 000000000 | 00000 |
| 130 | Partially Threaded | 56 | Coarse | 33 | 22 | 17 mm | 70,000 | DIN 912 | 1 | 000000000 | 00000 |
Medium-Strength Metric Class 8.8 Steel Hex Head Screws
These Class 8.8 steel screws are suitable for fastening most machinery and equipment. Dimensions meet ISO (formerly DIN) specifications. Length is measured from under the head.
Zinc-plated steel screws resist corrosion in wet environments. Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Thread Spacing | Wd., mm | Ht., mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Class 8.8 Steel | |||||||||
M22 × 2.5 mm | |||||||||
| 40 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 00000 |
| 45 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
| 50 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
| 60 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
| 70 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
| 80 | Fully Threaded | Coarse | 32 | 14 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
18-8 Stainless Steel Hex Head Screws
Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
Metric screws are also known as A2 stainless steel screws.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Screws that meet ASME or ISO (formerly DIN) specifications comply with these dimensional standards.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
M22 × 2.5 mm | ||||||||||
| 50mm | Fully Threaded | __ | Coarse | 32mm | 14mm | 100,000 | ISO 4017, DIN 933 | 1 | 000000000 | 00000 |
| 60mm | Fully Threaded | __ | Coarse | 32mm | 14mm | 100,000 | ISO 4017, DIN 933 | 1 | 000000000 | 00000 |
| 75mm | Fully Threaded | __ | Coarse | 34mm | 14mm | 80,000 | DIN 933 | 1 | 000000000 | 0000 |
| 80mm | Fully Threaded | __ | Coarse | 32mm | 14mm | 100,000 | ISO 4017, DIN 933 | 1 | 000000000 | 00000 |
| 80mm | Partially Threaded | 50mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 0000 |
| 100mm | Fully Threaded | __ | Coarse | 32mm | 14mm | 100,000 | ISO 4017, DIN 933 | 1 | 000000000 | 00000 |
| 100mm | Partially Threaded | 50mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 0000 |
| 110mm | Partially Threaded | 50mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 0000 |
| 120mm | Partially Threaded | 50mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 0000 |
| 130mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
| 140mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
| 150mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
| 170mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
| 180mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
| 200mm | Partially Threaded | 56mm | Coarse | 32mm | 14mm | 80,000 | DIN 931 | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
More corrosion resistant than 18-8 stainless steel screws, these 316 stainless screws have excellent resistance to chemicals and salt water. They may be mildly magnetic. Length is measured from under the head.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
M22 × 2.5 mm | |||||||||
| 50mm | Fully Threaded | Coarse | 32mm | 14mm | 70,000 | DIN 933 | 1 | 000000000 | 000000 |
| 60mm | Fully Threaded | Coarse | 32mm | 14mm | 70,000 | DIN 933 | 1 | 000000000 | 00000 |
| 70mm | Fully Threaded | Coarse | 32mm | 14mm | 70,000 | DIN 933 | 1 | 000000000 | 00000 |
| 80mm | Fully Threaded | Coarse | 32mm | 14mm | 70,000 | DIN 933 | 1 | 000000000 | 00000 |
| 100mm | Fully Threaded | Coarse | 32mm | 14mm | 70,000 | DIN 933 | 1 | 000000000 | 00000 |
Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications
Designed for construction and exterior building applications, these metric screws are often used to join I-beams and scaffolding. Their partial threading leaves an unthreaded portion that is strong enough to stand up to the sideways forces of joints. Made of Class 10.9 steel, these screws are at least 25% stronger than our medium-strength steel heavy hex head screws. They also have a hot-dipped galvanized finish that makes them 10 times more corrosion resistant than zinc plating, so they won't rust in wet environments. However, this finish is thicker than other finishes, so they should be used with DIN 6916 structural washers and DIN 6915 structural hex nuts. All meet ISO 7412 (formerly DIN 6914), an international standard for screw dimensions.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Thread Spacing | Thread Lg., mm | Grip Lg., mm | Wd., mm | Ht., mm | Tensile Strength, psi | Specifications Met | Each | |
Hot-Dipped Galvanized Class 10.9 Steel | ||||||||||
M22 × 2.5 mm | ||||||||||
| 60 | Partially Threaded | Coarse | 32 | 28 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 000000 |
| 65 | Partially Threaded | Coarse | 32 | 33 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 70 | Partially Threaded | Coarse | 32 | 38 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 75 | Partially Threaded | Coarse | 32 | 43 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 80 | Partially Threaded | Coarse | 32 | 48 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 90 | Partially Threaded | Coarse | 34 | 56 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 100 | Partially Threaded | Coarse | 34 | 66 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 110 | Partially Threaded | Coarse | 34 | 76 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 120 | Partially Threaded | Coarse | 34 | 86 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
| 130 | Partially Threaded | Coarse | 34 | 96 | 36 | 14 | 150,000 | DIN 6914, ISO 7412 | 000000000 | 00000 |
Metric Fine-Thread Medium-Strength Steel Threaded Rods—Grade B7
The tensile strength of these metric Grade B7 rods is about one and a half times higher than low-strength steel rods. Often used to secure pressure tanks, valves, and flanges, these rods meet the pressure and temperature requirements of ASTM A193.
For technical drawings and 3-D models, click on a part number.
Metric Medium-Strength Steel Threaded Rods—Grade B7
Made of Grade B7 steel, the tensile strength of these threaded rods is one and a half times higher than low-strength steel threaded rods. They also meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.
For technical drawings and 3-D models, click on a part number.
Medium-Strength Steel Threaded Rods—Class 8.8
An economical alternative to Grade B7 and Grade B16 threaded rods, these metric Class 8.8 rods are suitable for fastening most machinery and equipment.
Zinc-plated steel threaded rods resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Zinc-Plated Steel | ||||||
|---|---|---|---|---|---|---|
M22 | ||||||
| 1 m | 2.5 | 110,000 | Rockwell C20 | DIN 975 | 000000000 | 000000 |
Metric Low-Strength Steel Threaded Rods
These threaded rods are about half the strength of medium-strength steel threaded rods for light duty hanging, mounting, and fastening.
Zinc-plated steel threaded rods are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Metric Fine-Thread Low-Strength Steel Threaded Rods
About half the strength of medium-strength steel threaded rods, use these for light duty hanging, mounting, and fastening.
For technical drawings and 3-D models, click on a part number.
Metric High-Strength Steel Threaded Rods—Class 10.9
These Class 10.9 steel threaded rods are about 25% stronger than medium-strength steel rods.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M22 | ||||||
| 50 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 000000 |
| 100 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 150 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 200 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 300 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 500 mm | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 1 m | 2.5 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
Metric Very-High-Strength Steel Threaded Rods—Class 12.9
Class 12.9 rods are about 20% stronger than Class 10.9 threaded rods and are for use in heavy machinery.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M22 | ||||||
| 1 m | 2.5 | 170,000 | Rockwell C39 | DIN 976 | 00000000 | 0000000 |
Metric 18-8 Stainless Steel Threaded Rods
These 18-8 stainless steel threaded rods have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Metric Threaded on Both Ends Studs
Also known as setup studs, these studs withstand sideways forces better than fully threaded studs because they have an unthreaded middle that is stronger than the treaded ends. The unthreaded middle also makes more contact with unthreaded holes, which creates better alignment than a fully threaded stud.
Black-oxide steel studs resist rusting in dry environments.
Studs that meet DIN standards meet dimensional and material requirements.
For technical drawings and 3-D models, click on a part number.