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About Hex Head Screws and Bolts
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Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Fully Threaded

Partially Threaded
These Class 8.8 steel screws are suitable for fastening most machinery and equipment. Dimensions meet ISO (formerly DIN) or 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.
Screws that meet SAE J1199 comply with specifications for material standards.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Lg., mm | Threading | Min. Thread Lg., mm | Thread Spacing | Wd., mm | Ht., mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Class 8.8 Steel | ||||||||||
M3 × 0.5 mm | ||||||||||
6 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 000000 |
8 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
10 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
12 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
16 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
20 | Fully Threaded | __ | Coarse | 5.5 | 2 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
M4 × 0.7 mm | ||||||||||
6 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
8 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
10 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
12 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
14 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 0000 |
16 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
20 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
25 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
30 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
35 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
40 | Fully Threaded | __ | Coarse | 7 | 2.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
45 | Partially Threaded | 13 | Coarse | 7 | 2.8 | 110,000 | ISO 4014, DIN 931, ISO 898 | 25 | 000000000 | 0000 |
50 | Partially Threaded | 13 | Coarse | 7 | 2.8 | 110,000 | ISO 4014, DIN 931, ISO 898 | 100 | 000000000 | 00000 |
M5 × 0.8 mm | ||||||||||
6 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
8 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
10 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
12 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
14 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
16 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
20 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
25 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 100 | 000000000 | 00000 |
30 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 00000 |
35 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 00000 |
40 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 00000 |
45 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 00000 |
50 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 50 | 000000000 | 00000 |
60 | Fully Threaded | __ | Coarse | 8 | 3.5 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 0000 |
65 | Partially Threaded | 16 | Coarse | 8 | 3.5 | 110,000 | ISO 4014, DIN 931, ISO 898 | 25 | 000000000 | 00000 |
M6 × 1 mm | ||||||||||
8 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
10 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
12 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
14 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
16 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
18 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
20 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
22 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
25 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 100 | 000000000 | 00000 |
30 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
35 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
40 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
45 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
50 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
55 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
60 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
60 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
65 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 10 | 000000000 | 0000 |
65 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
70 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
70 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 0000 |
80 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
80 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
90 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
100 | Fully Threaded | __ | Coarse | 10 | 4 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
100 | Partially Threaded | 18 | Coarse | 10 | 4 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
M7 × 1 mm | ||||||||||
12 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 0000 |
20 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 00000 |
30 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 00000 |
35 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 10 | 000000000 | 0000 |
40 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 00000 |
45 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 00000 |
50 | Fully Threaded | __ | Coarse | 11 | 4.8 | 110,000 | ISO 4017, DIN 933, ISO 898 | 25 | 000000000 | 00000 |
M8 × 1.25 mm | ||||||||||
12 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
14 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
16 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
20 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
22 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
25 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
30 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
35 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
40 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
45 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 50 | 000000000 | 00000 |
50 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
55 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
55 | Partially Threaded | 22 | Coarse | 13 | 5.3 | 110,000 | ISO 4014, DIN 931, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |
60 | Fully Threaded | __ | Coarse | 13 | 5.3 | 110,000 | ISO 4017, DIN 933, SAE J1199, ISO 898 | 25 | 000000000 | 00000 |