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Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts
Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. Material meets SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments. Zinc-plated steel screws resist corrosion in wet environments. Zinc-flake-coated steel screws are 40 times as corrosion resistant as zinc-plated screws and comparable to Magni-coated screws.
For technical drawings and 3-D models, click on a part number.
Head | Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing  | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Grade 5 Steel | |||||||||||
5/16"-18 | |||||||||||
| 5/8" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
Zinc-Plated Grade 5 Steel | |||||||||||
5/16"-18 | |||||||||||
| 5/8" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 7/8" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
| 2 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
| 3 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 0000 |
| 5" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 0000 |
| 5 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 6" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 6 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 0000 |
| 7" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 0000 |
| 8" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 0000 |
Zinc-Flake Coated Grade 5 Steel | |||||||||||
5/16"-18 | |||||||||||
| 5/8" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 5 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 120,000 | ASME B18.5, SAE J429 | 1 | 000000000 | 00000 |
Low-Strength Steel Square-Neck Carriage Bolts
About half the strength of medium-strength bolts, these Grade 2 bolts are for light duty fastening. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Material meets ASTM A307 or SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
Zinc-plated steel bolts resist corrosion in wet environments.
Hot-dipped galvanized steel bolts have a thick coating for better corrosion resistance than zinc-plated steel bolts. They meet ASTM A153 specifications for quality of hot-dipped coatings. They’re a good choice for ACQ-treated (arsenic-free) lumber. Bolts must be used with hot-dipped galvanized steel nuts (sold separately).
For technical drawings and 3-D models, click on a part number.
Head | Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
5/16"-18 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 000000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 1 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 2 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 2 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 100 | 000000000 | 00000 |
| 3 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
| 4 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
| 5" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
| 5 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
| 6" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, SAE J429, ASME B18.5 | 50 | 000000000 | 00000 |
Carriage Bolts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Neck | Hex Nuts | ||||||||||||
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | ||
5/16"-18 | ||||||||||||||
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 100 | 000000000 | 000000 | 100 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 100 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 50 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 50 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 50 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 50 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 50 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 5" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 5 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
| 6" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 60,000 | ASTM A307, ASTM A153, ASME B18.5 | 25 | 000000000 | 00000 | 100 | 000000000 | 0000 |
High-Strength Grade 8 Steel Square-Neck Carriage Bolts
Made from Grade 8 steel, these bolts are at least 25% stronger than medium-strength steel bolts and can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. A square neck keeps these bolts from turning when tightening a nut. A smooth, rounded head provides a finished look. A zinc yellow-chromate plating provides corrosion resistance in wet environments. Grade 8 steel bolts are marked with six radial lines. Material meets SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | |||||||||||
5/16"-18 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 000000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 50 | 000000000 | 00000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 150,000 | ASME B18.5, SAE J429 | 25 | 000000000 | 00000 |
18-8 Stainless Steel Square-Neck Carriage Bolts
Made from 18-8 stainless steel, these bolts have good chemical resistance and may be mildly magnetic. They're a good choice for ACQ-treated (arsenic-free) lumber. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Length is measured from under the head. Dimensions meet ASME B18.5 or DIN 603 specifications. Some also meet ISO 8678. DIN 603 is functionally equivalent to ISO 8678 with slight differences in head diameter, head height, and length tolerances.
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 | Neck | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||||
5/16"-18 | ||||||||||||
| 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 25 | 000000000 | 000000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 25 | 000000000 | 00000 |
| 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 25 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 1 5/8" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 2 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 3" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 3 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 3 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 4 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 00000 |
| 4 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 5" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 5 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 00000 |
| 6" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 6 1/2" | Partially Threaded | 1 1/4" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 7" | Partially Threaded | 1" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 8" | Partially Threaded | 1" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 9" | Partially Threaded | 1" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 10" | Partially Threaded | 1" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 12" | Partially Threaded | 1" | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Square-Neck Carriage Bolts
More corrosion resistant than 18-8 stainless steel bolts, these 316 stainless steel bolts have excellent resistance to chemicals and salt water and are a good choice for ACQ-treated (arsenic-free) lumber. They may be mildly magnetic. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Dimensions meet ASME B18.5 or DIN 603 specifications. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||||
5/16"-18 | |||||||||||
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 5 | 000000000 | 0000 |
| 3 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 5" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
| 6" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | 70,000 | ASME B18.5 | 1 | 000000000 | 0000 |
Bronze Square-Neck Carriage Bolts
Made from bronze, these bolts provide corrosion resistance to salt water, gases, and sewage, and are nonmagnetic and electrically conductive. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Wd. | Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
Silicon Bronze | ||||||||||
5/16"-18 | ||||||||||
| 3/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.33" | 0.19" | ASME B18.5 | 5 | 000000000 | 000000 |
| 1" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.33" | 0.19" | ASME B18.5 | 5 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.33" | 0.19" | ASME B18.5 | 5 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | ASME B18.5 | 5 | 000000000 | 00000 |
| 2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | ASME B18.5 | 5 | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | ASME B18.5 | 5 | 000000000 | 00000 |
| 3" | Fully Threaded | Coarse | 0.719" | 0.176" | 0.32" | 0.19" | ASME B18.5 | 1 | 000000000 | 0000 |
Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts
Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment and are zinc plated to resist corrosion in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. Material meets SAE J429 specifications for quality. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Dia. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Grade 5 Steel | ||||||||||||
5/16"-18 | ||||||||||||
| 1" | Partially Threaded | 7/16" | Coarse | 0.719" | 0.176" | 0.34" | 0.44" | 120,000 | SAE J429 | 25 | 000000000 | 000000 |
| 1 1/4" | Partially Threaded | 1/2" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 1 3/4" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 120,000 | SAE J429 | 25 | 000000000 | 00000 |
Low-Strength Steel Knurled-Neck Carriage Bolts
About half the strength of medium-strength bolts, these bolts are for light duty fastening. The zinc plating provides corrosion resistance in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Material meets ASTM A307 and SAE J429 specifications for quality. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | Neck | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Dia. | Lg. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Grade 2 Steel | ||||||||||||
5/16"-18 | ||||||||||||
| 3/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.28" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 000000 |
| 1" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.44" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
| 2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 2 1/2" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
| 3" | Partially Threaded | 7/8" | Coarse | 0.719" | 0.176" | 0.34" | 0.63" | 60,000 | ASTM A307, SAE J429 | 10 | 000000000 | 00000 |