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System of Measurement System of Measurement |
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Thread Spacing Thread Spacing |
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Drive Style Drive Style |
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Thread Direction Thread Direction |
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Hardness Hardness |
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About Threaded Studs and Rods
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About Set Screws
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About Socket Head Screws
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About Hex Head Screws and Bolts
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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. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance. They are not compatible with coarse threads.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
7/8"-14 | |||||||||||
Black-Oxide Alloy Steel | |||||||||||
| 2 1/4" | Fully Threaded | __ | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | __ | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 0000 |
| 3 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 0000 |
| 4" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 0000 |
| 4 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 5" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 6" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 7/8" | 3/4" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
High-Strength Grade 8 Steel Hex Head Screws
Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head.
Zinc yellow-chromate plated steel screws resist corrosion in wet environments. Match the thread spacing of mating components. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
Screws that meet ASTM A354BD or SAE J429 comply with specifications and testing requirements for material quality. Screws that meet ASME B18.2.1 or ASME B18.6.3 comply with specifications for 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. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||||
7/8"-14 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 2 3/4" | Fully Threaded | __ | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 1/4" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 3/4" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 4" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 4 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 5" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 5 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 6" | Partially Threaded | 2" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 6 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 7 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 8" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 8 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 9" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 10" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 37/64" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
Medium-Strength Grade 5 Steel Hex Head Screws
Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Dimensions meet ASME B18.2.1 specifications. Grade 5 steel hex head screws are marked with three radial lines. Length is measured from under the head.
Zinc-plated steel screws resist corrosion in wet environments. Match the thread spacing of mating components. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
Screws that meet ASTM A449 or SAE J429 comply with specifications and testing requirements for material quality.
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. | |
Zinc-Plated Grade 5 Steel | ||||||||||
7/8"-14 | ||||||||||
| 2" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 2 3/4" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 1/4" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 3 3/4" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 4" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 4 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 5" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 5 1/2" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 6" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 6 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 7" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 7 1/2" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 8" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 0000 |
| 10" | Partially Threaded | 2 1/4" | Fine | 1 5/16" | 35/64" | 120,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
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.
Match the thread spacing of mating components. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
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 | ||||||||||
7/8"-14 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 00000 |
| 2" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Fine | 1 5/16" | 35/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
| 3" | Partially Threaded | 2" | Fine | 1 5/16" | 35/64" | 70,000 | ASME B18.2.1 | 1 | 000000000 | 0000 |
Alloy Steel Cup-Point Set Screws
Made from alloy steel, these set screws have a thin edge that digs into hard surfaces for a secure hold. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg. | Drive Size | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Alloy Steel | ||||||
|---|---|---|---|---|---|---|
7/8"-14 | ||||||
| 1" | 1/2" | Rockwell C45 | ASME B18.3, ASTM F912 | 5 | 000000000 | 000000 |
Alloy Steel Hollow-Lock Set Screws
Also known as jam set screws, these lock other screws in place, hold pins, and adjust spring tension. The hollow design allows you to inspect locked parts. A black-oxide finish provides corrosion resistance in dry environments. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg. | Drive Size | Hardness | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | |||||
|---|---|---|---|---|---|
7/8"-14 | |||||
| 7/16" | 1/2" | Rockwell C45 | 5 | 000000000 | 000000 |
Medium-Strength Steel Threaded Rods—Grade B7
These Grade B7 threaded rods 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.
| Lg. | Tensile Strength, psi | Hardness | Specifications Met | Each | |
7/8"-14 | |||||
|---|---|---|---|---|---|
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 2ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 4ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 5ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 8ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
Left-Hand Threaded Medium-Strength
Steel Threaded Rods—Grade B7
Tighten these threaded rods by turning them to the left; once fastened, they resist loosening from counterclockwise motion. Made from Grade B7 steel, they 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.
High-Strength Steel Threaded Rods
Grade 8 steel threaded rods are about 25% stronger than medium-strength steel rods.
Zinc yellow-chromate plated steel threaded rods resist corrosion in wet environments.
Black-oxide steel threaded rods have a dark surface color and are corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Zinc Yellow-Chromate Plated Steel | |||||
|---|---|---|---|---|---|
7/8"-14 | |||||
| 4" | 150,000 | Rockwell C33 | ASTM A354BD | 0000000 | 000000 |
| 6" | 150,000 | Rockwell C33 | ASTM A354BD | 0000000 | 00000 |
Black-Oxide Steel | |||||
7/8"-14 | |||||
| 4" | 150,000 | Rockwell C33 | ASTM A354BD | 0000000 | 00000 |
| 6" | 150,000 | Rockwell C33 | ASTM A354BD | 0000000 | 00000 |
Steel | |||||
7/8"-14 | |||||
| 4" | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
| 6" | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
| 1ft. | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
| 2ft. | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
| 3ft. | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
| 6ft. | 150,000 | Rockwell C33 | ASTM A354BD | 000000000 | 00000 |
Low-Strength Steel Threaded Rods
About half the strength of medium-strength steel threaded rods, use these 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.
18-8 Stainless Steel Threaded Rods
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.
Eyebolts—For Lifting
Also known as machinery eyebolts.
Zinc-plated steel eyebolts offer good corrosion resistance.
Note: Capacities listed are for vertical lifting only. Eyebolts with shoulder can be used for angular lifting up to 45°, but the capacities will be significantly reduced. For angular lifting, we recommend Hoist Rings. Eyebolts without shoulder are for vertical lifting only.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Lg. | Shank Lg. | Eye Dia. | Vertical Capacity, lbs. | Overall Lg. | Each | |
With Shoulder | |||||||
Steel | |||||||
| 7/8"-14 | 2 1/4" | 2 1/4" | 1 11/16" | 7,000 | 6 1/8" | 00000000 | 000000 |
Zinc-Plated Steel | |||||||
| 7/8"-14 | 2 1/4" | 2 1/4" | 1 11/16" | 7,000 | 6 1/8" | 00000000 | 00000 |
Without Shoulder | |||||||
Steel | |||||||
| 7/8"-14 | 2 1/4" | 2 1/4" | 1 11/16" | 7,000 | 5 1/2" | 00000000 | 00000 |
Zinc-Plated Steel | |||||||
| 7/8"-14 | 2 1/4" | 2 1/4" | 1 11/16" | 7,000 | 5 1/2" | 00000000 | 00000 |
Center-Locating Punches for Threaded Holes
Also known as transfer screws, these punches can be used in any threaded hole to transfer the hole location. Use the handle to screw a punch into a hole. Place your workpiece against the punch and strike it with a hammer to mark the hole location.
| Thread Size | Includes | Punch Material | Grip Texture | Each | |
Inch | |||||
|---|---|---|---|---|---|
| 7/8"-14 | Handle, Six Punches | Steel | Smooth | 0000000 | 000000 |
V-Belts
