M6 Standard Hex Cap Screws Bolts DIN 933 Steel Nickel Fastener
M6 Standard Hex Cap Screws Bolts DIN 933 Steel Nickel Fastener
M1.6 to M52 standard DIN933 hex cap screws with grade 4.8 to 12.9 for vast applicaton requests .
Hex cap screw is also known as hex bolt . Normally . it has a hexagonal head with chamfer edges for hex socket wrench or spanner rotating during operation , machine thread style is fine or course and the threaded length is about 2/3 of total shaft length for the lengths over 70 mm .
Full Specifications
We offer hex cap screws from M1.6 to M52 ( thread diameter ) and max length is up to 350 mm .
DIN933/GB5783-86/ISO4017
| M | k | s | e |
| 1.6 | 1.1 | 3.2 | 3.41 |
| 2 | 1.4 | 4 | 4.32 |
| 2.5 | 1.7 | 5 | 5.45 |
| 3 | 2 | 5.5 | 6.01 |
| 3.5 | 2.4 | 6 | 6.58 |
| 4 | 2.8 | 7 | 7.66 |
| 5 | 3.5 | 8 | 8.79 |
| 6 | 4 | 10 | 11.05 |
| 7 | 4.8 | 11 | 12.12 |
| 8 | 5.3 | 13 | 14.38 |
| 10 | 6.4 | 17 | 18.9 |
| 12 | 7.5 | 19 | 21.1 |
| 14 | 8.8 | 22 | 24.49 |
| 16 | 10 | 24 | 26.75 |
| 18 | 11.5 | 27 | 30.14 |
| 20 | 12.5 | 30 | 33.53 |
| 22 | 14 | 32 | 35.72 |
| 24 | 15 | 36 | 39.98 |
| 27 | 17 | 41 | 45.2 |
| 30 | 18.7 | 46 | 50.85 |
| 33 | 21 | 50 | 55.37 |
| 36 | 22.5 | 55 | 60.79 |
| 39 | 25 | 60 | 66.44 |
| 42 | 26 | 65 | 71.3 |
| 45 | 28 | 70 | 76.95 |
| 48 | 30 | 75 | 82.6 |
| 52 | 33 | 80 | 88.25 |
Materials
The property class for hex cap screws involve 4.8 ,6.8 ,8.8 ,10.9 and 12.9 , different classes different material to be taken .
Stainless steel : SUS 201, SUS 304 ,SUS 316 , SUS 416 ,SUS 430 and SUS 420 ( above grade 8.8 )
Carbon steel : 1008 , 1010 , 1018 , 1022 , 1035 , 1045 , SCM 435 and 40CRO ( grade 4.8 to 12.9 )
Aluminum : 2024 , 6061 and 7075 (Below grade 4.8 )
Brass : CuZn35 , CuZn37 , CuZn40 , CuZn37Pb1 and CuZn39Pb1 ( Below grade 4.8 )
Note : Aluminum and brass material are for quite light-load .
Finish
| Description | Charicteristic |
| Zinc | Various color can be choosed and perfect on anti-corrosion |
| Nickel | Make the surface of the screws more bright and hardened and the performance of screws will be improved |
| Polish | Improving the brightness of surface but is inferior is not as zinc in anti-corrosion |
| Tin | it is very perfect to be anti-rust , and widely used to components |
| Brass | It is usually used with Nickel for more good anti-corrrosion. |
| Dacromet | Is used for screws with big sizes and can stop screws to be rusted long time even under bad surroundings . |
| Passivation | A little dark on the surface , good corrosion resistance |
Applications
Hex cap screws are widely used to different areas for industry and agricultures
Aerospace
Vessel
Trucks and cars
Official items
Furniture
Building
Railway
Industrial machines
Get in Touch
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