System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Material Material |
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Thread Spacing Thread Spacing |
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Drive Style Drive Style |
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| Hex | External Hex |
Tensile Strength Tensile Strength |
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Thread Direction Thread Direction |
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 | Right Hand |
Socket Head Profile Socket Head Profile |
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 | Standard |
Drive Size Drive Size |
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Diameter Diameter |
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About Threaded Studs and Rods
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About Casters and Wheels
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About Socket Head Screws
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About Hex Head Screws and Bolts
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About Flat Head Screws
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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. | |
1 1/4"-12 | |||||||||||
Black-Oxide Alloy Steel | |||||||||||
| 2 1/2" | Fully Threaded | __ | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 000000 |
| 2 3/4" | Fully Threaded | __ | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 3" | Fully Threaded | __ | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 3 1/2" | Fully Threaded | __ | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 4" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 4 1/2" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 5" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 5 1/2" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 6" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 6 1/2" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 8" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 9" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 170,000 | ASTM A574 | 1 | 000000000 | 00000 |
| 10" | Partially Threaded | 3 1/8" | Fine | 1 7/8" | 1 1/4" | 7/8" | 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 | ||||||||||
1 1/4"-12 | ||||||||||
| 3 1/2" | Fully Threaded | __ | Fine | 1 7/8" | 25/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 000000 |
| 4 1/2" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 25/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Grade 8 Steel | ||||||||||
1 1/4"-12 | ||||||||||
| 4" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 5" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 6" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 3" | Fine | 1 7/8" | 27/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 8" | Partially Threaded | 3" | Fine | 1 7/8" | 27/32" | 150,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 10" | Partially Threaded | 3" | Fine | 1 7/8" | 27/32" | 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.
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. | |
Grade 5 Steel | ||||||||||
1 1/4"-12 | ||||||||||
| 4" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 100,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 5" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 100,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 6" | Partially Threaded | 2 3/4" | Fine | 1 7/8" | 27/32" | 100,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 7" | Partially Threaded | 3" | Fine | 1 7/8" | 27/32" | 100,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
| 8" | Partially Threaded | 3" | Fine | 1 7/8" | 27/32" | 100,000 | ASME B18.2.1, SAE J429 | 1 | 000000000 | 00000 |
Alloy Steel Hex Drive Flat Head Screws
Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws. They're angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Black-oxide alloy steel screws have mild corrosion resistance in dry environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1 1/4"-12 | ||||||||||
| 3" | Fully Threaded | Standard | 2.438" | 0.683" | 7/8" | 120,000 | ASTM F835 | 1 | 000000000 | 000000 |
High-Strength Steel Threaded Rods
Grade 8 steel threaded rods are about 25% stronger than medium-strength steel rods.
For technical drawings and 3-D models, click on a part number.
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 | |
1 1/4"-12 | |||||
|---|---|---|---|---|---|
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
| 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 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
| 12ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
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.
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 | |||||||
| 1 1/4"-12 | 3" | 3" | 2 3/16" | 15,000 | 8 3/8" | 00000000 | 000000 |
Zinc-Plated Steel | |||||||
| 1 1/4"-12 | 3" | 3" | 2 3/16" | 15,000 | 8 3/8" | 00000000 | 00000 |
Without Shoulder | |||||||
Steel | |||||||
| 1 1/4"-12 | 3" | 3" | 2 3/16" | 15,000 | 7 3/8" | 00000000 | 00000 |
Zinc-Plated Steel | |||||||
| 1 1/4"-12 | 3" | 3" | 2 3/16" | 15,000 | 7 3/8" | 00000000 | 00000 |
Wheel Axles
Replace worn or broken caster axles.
| Dia. | Lg. | Thread Size | Thread Lg. | Includes | Each | |
Axle | ||||||
|---|---|---|---|---|---|---|
Steel with Blue-Painted Head | ||||||
| 1 1/4" | 6 3/8" | 1 1/4"-12 | 1 3/8" | Hex Nut | 00000000 | 000000 |
Forcing Screws for Pullers
Make your old puller work like new by replacing worn forcing screws.
| Thread Size | Lg. | Material | Head Style | Each | |
| 1 1/4"-12 | 16" | Steel | Hex | 0000000 | 0000000 |