M6 Stainless Steel SEMS Screws Hex Socket Allen Head Metal Screws Assembled Washers
M6 Stainless Steel SEMS Screws Hex Socket Allen Head Metal Screws Assembled Washers
Stainless steel SEMS screws are combined with a Flat washer and a flat washer and both washers are put on the shaft of SEMS screw , under shaft is threaded length that diameter is more bigger than the shaft diameter for prevent both washers from slipping out and play a secure role on objects .
Cup head SEMS screw with inside hex socket , you can take a hex wrench to drive screws by hand , when SEMS screws are installed on material , flat washer or spring washer increase more frictions on material and screws are not easy to be loosen and backed out .
Specification
Stainless steel SEMS screws with size M4 X 20 mm with attached standard flat washer and spring washer .
| Head diameter | D | 10.8 |
| Thread length | L1 | 8 |
| Shaft diameter | d | M6 |
| Flat washer size | Standard | 1.5 X 12 |
| Spring washer size | Standard | 1.5 X 10.5 |
| Full length | L | 15 |
| Head height | H | 6 |
| Socket depth | t | 4 |
| Socket width | S | 5.5 |
Perfect features
● Good ductility
● High tensile strength
● No magnet
● Corrosion resistant
● Fine roughness
Mechanical Performance
| Material | Property class / Value |
| Stainless steel | 18-8 |
| Tensile strength σb (MPa) | 650 |
| Yield Strength σs (MPa) | 320 |
| Elongation δ5 (%) | 35 |
| Reduction of area ψ (%) | 45 |
| Density g/cm3) | 7.98 |
Finish
Stainless steel cup head SEMS screws are polished surface with good brightness
| Finish | Polishing |
| Roughness | R6.3 |
| Surface request | No burrs and bright |
How to install SEMS screws
1 , Drill a threaded hole on work piece , the hole sizes are same as the SEMS screw’s .
2 , Put SEMS screw into hole and rotate screw to the surface of work piece .
3 , Further secure screws and tighten screws in work piece .
Applications
SEMS Screws have a wide applications in industry and make a important roles on secure and joint .
★ Aerospace
★ Cars
★ Vessel
★ Trains
★ Household applicanes
★ Machines
★ Buliding
★ Decoration
★ Electric items
★ Official items
★ Communication
Characteristics
▲ Wide versatility
▲ Top material
▲ Quick installation
▲ Convenient operation
▲ Simple deign
▲ Recylable
▲ Eco-friendly
▲ Standard Sizes
Tips for installations
1 , Stainless steel SEMS screws are polished and surface is bright , please don’t strike screws into material during installation for keep nice appearance , especially for decorative applications .
2 , Please take right and suitable screwdriver bits to drive stainless steel self tapping screws for more quick installation .
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