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 .

Perfect features

● Good ductility

● High tensile strength

● No magnet

● Corrosion resistant

● Fine roughness

Mechanical Performance

Finish

Stainless steel cup head SEMS screws are polished surface with good brightness

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 .