Project Description
Flat hex socket head machine screw
Flat hex socket head machine screw also is used to applications where require a flush finished surfaces, while with a higher strength than normal flat head machine screws.S-metal could manufacture 8.8/10.9/12.9 class with carbon steel and A2-70 with stainless steel for your options.
Standards:DIN 7991/ISO 10642
Material: carbon steel/alloy steel
Surface:electroplated coatings like zinc,black zinc, nickel,H.D.G etc.
Mechanical properties:
Property class: 8.8/10.9/12.9 for metric sizes
Grade 5/8 for inch sizes
For more information on the flat hex socket head machine screw, please contact us by sales@s-metals.com.
DIN7991Flat head hex socket machine screw
Dimension in mm.
| d | P | dk | S | t | a | |||||
| max | min | normal | max | min | max | min | max | min | ||
| M3 | 0.5 | 6 | 5.7 | 2 | 2.1 | 2. 02 | 1.2 | 0.95 | 92° | 90° |
| M4 | 0.7 | 8 | 7.64 | 2.5 | 2.6 | 2. 52 | 1.8 | 1.55 | ||
| M5 | 0.8 | 10 | 9.64 | 3 | 3.1 | 3.02 | 2.3 | 2.05 | ||
| M6 | 1 | 12 | 11.57 | 4 | 4.12 | 4.02 | 2.5 | 2.25 | ||
| M8 | 1.25 | 16 | 15.57 | 5 | 5.14 | 5.02 | 3.5 | 3.2 | ||
| M10 | 1.5 | 20 | 19.48 | 6 | 6.14 | 6.02 | 4.4 | 4.1 | ||
| M12 | 1.75 | 24 | 23.48 | 8 | 6.175 | 8.025 | 4.6 | 4.3 | ||
| M14 | 2 | 27 | 26.48 | 10 | 10.175 | 10.025 | 4.8 | 4.5 | ||
| M16 | 2 | 30 | 29.48 | 10 | 10.175 | 10.025 | 5.3 | 5 | ||
| M18 | 2.5 | 33 | 32.38 | 12 | 12.212 | 12.032 | 5.5 | 5.2 | ||
| M20 | 2.5 | 38 | 35.38 | 12 | 12.212 | 12.032 | 5.9 | 5.6 | ||
| M22 | 2.5 | 36 | 35.38 | 14 | 14.212 | 14.032 | 8.8 | 8.44 | 62° | 60° |
| M24 | 3 | 39 | 38.38 | 14 | 14.212 | 14.032 | 10.3 | 9.87 | ||
