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Grade 5 |
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About Hex Head Screws and Bolts
More
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.
Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray per ASTM B117. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. 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 | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black Ultra-Corrosion-Resistant-Coated Grade 5 Steel | |||||||||
1/4"-20 | |||||||||
1/2" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
5/8" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
3/4" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 3/4" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
2" | Fully Threaded | Coarse | 7/16" | 5/32" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
5/16"-18 | |||||||||
1/2" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
3/4" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 3/4" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
2" | Fully Threaded | Coarse | 1/2" | 13/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
3/8"-16 | |||||||||
3/4" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
1 1/2" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
1 3/4" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
2" | Fully Threaded | Coarse | 9/16" | 15/64" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 5 | 000000000 | 00000 |
1/2"-13 | |||||||||
1" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
1 3/4" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
2" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
2 1/4" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
2 1/2" | Fully Threaded | Coarse | 3/4" | 5/16" | 120,000 | ASME B18.2.1, ASTM B117, SAE J429 | 1 | 000000000 | 0000 |
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.
Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
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. | |
Black Ultra-Corrosion-Resistant-Coated Class 8.8 Steel | |||||||||
M6 × 1 mm | |||||||||
12 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 10 | 000000000 | 000000 |
20 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 10 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 10 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
50 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
60 | Fully Threaded | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
M8 × 1.25 mm | |||||||||
12 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 10 | 000000000 | 00000 |
20 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 10 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
40 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
50 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
60 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
M10 × 1.5 mm | |||||||||
20 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
50 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
60 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
70 | Fully Threaded | Coarse | 17 | 6.4 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
M12 × 1.75 mm | |||||||||
20 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
50 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
60 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 19 | 7.5 | 110,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
High-Strength Metric Class 10.9 Steel Hex Head Screws

Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. Dimensions meet ISO (formerly DIN) or DIN specifications. Length is measured from under the head.
Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
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. | |
Black Ultra-Corrosion-Resistant-Coated Class 10.9 Steel | |||||||||
M6 × 1 mm | |||||||||
12 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 10 | 000000000 | 000000 |
20 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
25 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
40 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
50 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
60 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 10 | 4 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
M8 × 1.25 mm | |||||||||
20 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
25 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 0000 |
40 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
50 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
60 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 13 | 5.3 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
M10 × 1.5 mm | |||||||||
20 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
50 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
60 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 17 | 6.4 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
M12 × 1.75 mm | |||||||||
20 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 5 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
50 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
60 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
70 | Fully Threaded | Coarse | 19 | 7.5 | 150,000 | ISO 4017, DIN 933 | 1 | 000000000 | 0000 |
Medium-Strength Grade 5 Steel Flanged Hex Head Screws


Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Material meets SAE J429 specifications for quality. Dimensions meet IFI 111 specifications. Grade 5 steel hex head screws are marked with three radial lines. Head height includes the flange. Length is measured from under the flange.
Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch.
For technical drawings and 3-D models, click on a part number.
Screws | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Grade 5 Steel Nuts | |||||||||||||
Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Flange Dia. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | ||
1/4"-20 | ||||||||||||||
1/2" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 00000 |
3/4" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1" | Fully Threaded | __ | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1 1/2" | Partially Threaded | 3/4" | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
5/16"-18 | ||||||||||||||
1/2" | Fully Threaded | __ | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
3/4" | Fully Threaded | __ | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
1" | Fully Threaded | __ | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
1 1/4" | Fully Threaded | __ | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
1 1/2" | Partially Threaded | 7/8" | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
3/8"-16 | ||||||||||||||
3/4" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | __ | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
2" | Partially Threaded | 1" | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1/2"-13 | ||||||||||||||
1" | Fully Threaded | __ | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | __ | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |
Medium-Strength Metric Class 8.8 Steel Flanged Hex Head Screws


These Class 8.8 steel screws are suitable for fastening most machinery and equipment. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. All screws meet DIN 6921 specifications for dimensions. Head height includes the flange. Length is measured from under the flange.
Black ultra-corrosion-resistant-coated screws resist chemicals and withstand 1,000 hours of salt spray. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
For technical drawings and 3-D models, click on a part number.
Head, mm | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Lg., mm | Threading | Thread Spacing | Wd. | Ht. | Flange Dia., mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black Ultra-Corrosion-Resistant-Coated Class 8.8 Steel | ||||||||||
M6 × 1 mm | ||||||||||
12 | Fully Threaded | Coarse | 10 | 6.6 | 14.2 | 110,000 | DIN 6921 | 5 | 000000000 | 00000 |
20 | Fully Threaded | Coarse | 10 | 6.6 | 14.2 | 110,000 | DIN 6921 | 5 | 000000000 | 0000 |
25 | Fully Threaded | Coarse | 10 | 6.6 | 14.2 | 110,000 | DIN 6921 | 5 | 000000000 | 0000 |
M8 × 1.25 mm | ||||||||||
12 | Fully Threaded | Coarse | 13 | 8.1 | 18 | 110,000 | DIN 6921 | 5 | 000000000 | 0000 |
20 | Fully Threaded | Coarse | 13 | 8.1 | 18 | 110,000 | DIN 6921 | 5 | 000000000 | 0000 |
25 | Fully Threaded | Coarse | 13 | 8.1 | 18 | 110,000 | DIN 6921 | 5 | 000000000 | 0000 |
M10 × 1.5 mm | ||||||||||
20 | Fully Threaded | Coarse | 15 | 9.2 | 22.3 | 110,000 | DIN 6921 | 5 | 000000000 | 00000 |
25 | Fully Threaded | Coarse | 15 | 9.2 | 22.3 | 110,000 | DIN 6921 | 5 | 000000000 | 00000 |
40 | Fully Threaded | Coarse | 15 | 9.2 | 22.3 | 110,000 | DIN 6921 | 1 | 000000000 | 0000 |
M12 × 1.75 mm | ||||||||||
20 | Fully Threaded | Coarse | 16 | 11.5 | 26.6 | 110,000 | DIN 6921 | 1 | 000000000 | 0000 |
25 | Fully Threaded | Coarse | 16 | 11.5 | 26.6 | 110,000 | DIN 6921 | 1 | 000000000 | 0000 |
40 | Fully Threaded | Coarse | 16 | 11.5 | 26.6 | 110,000 | DIN 6921 | 1 | 000000000 | 0000 |
Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Serrations under the head grip the material surface for mild vibration resistance, and the flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Material meets SAE J429 specifications for quality. Dimensions meet IFI 111 specifications. Grade 5 steel hex head screws are marked with three radial lines. Head height includes the flange. Length is measured from under the flange.
Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch.
For technical drawings and 3-D models, click on a part number.

Screws | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Grade 5 Steel Nuts | ||||||||||||
Lg. | Threading | Thread Spacing | Wd. | Ht. | Flange Dia. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | ||
1/4"-20 | |||||||||||||
1/2" | Fully Threaded | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 00000 |
3/4" | Fully Threaded | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 3/8" | 9/32" | 9/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
5/16"-18 | |||||||||||||
1/2" | Fully Threaded | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
3/4" | Fully Threaded | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 10 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 1/2" | 21/64" | 11/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 10 | 000000000 | 0000 |
3/8"-16 | |||||||||||||
3/4" | Fully Threaded | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 0000 | 5 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 5 | 000000000 | 00000 | 5 | 000000000 | 0000 |
2" | Fully Threaded | Coarse | 9/16" | 25/64" | 13/16" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |
1/2"-13 | |||||||||||||
1" | Fully Threaded | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |
1 1/2" | Fully Threaded | Coarse | 3/4" | 33/64" | 1 5/64" | 120,000 | IFI 111, SAE J429 | 1 | 000000000 | 0000 | 5 | 000000000 | 0000 |