Phillips Slot Pan Head Stainless Steel SEMS Screws M5 Assemblied
Captive Square Washer
SEMS screw is made from stainles steel with high tensile strength ,
a captive square washer assembled to machine screws to enlarge
touching area and increase friction for more tighten secure .
Normally , SEMS Screws are comprised of a screw and a washer even
more parts like double washers to enable screws to fasten pieces
more steadily . Washer for SEMS screws maybe a spring washer or
flat washer or both washers some times , and square washer with
grooves on the surface also can be used to it .
Various washers for SEMS Screws
Usually , the head style must to be kept flat under the head for
the SEMS Screws so that screw to fasten washers on the surface more
We offer sizes from M2.5 to M10 SEMS screws for wide applications
|M2.5||5||8||10|| || || || || || || || || || || || |
|M3|| ||8||10||12||15||18|| || || || || || || || || |
|(M3.5)|| ||8||10||12||15||18||19||20||25|| || || || || || |
|M4|| ||8||10||12||15||18||19||20||25||30|| || || || || |
|M5|| || ||10||12||15||18||19||20||25||30||32||35|| || || |
|M6|| || ||10||12||15||18||19||20||25||30||32||35||42|| || |
|M8|| || || || ||15||18||19||20||25||30||32||35||42||51||60|
|M10|| || || || || ||18||19||20||25||30||32||35||42||51||60|
Washers for SEMS screws are different for different sizes .
Finishing for SEMS screws
The most popular plating for the most products , making parts are
bright and smooth and resistant corrosion
The film thickness is 1～3μm , it improves brightness and wear
resistance . it is for the most items .
Reduce roughness of parts and improve brightness . is workable for
the most metal parts in industry .
With film thickness 0.13～1.27μm , tin finish with bright surface
and good ductility ,corrosion resistance ,lower melting point
,eco-friendly features . and is used for electronics .
Usually, 5gm～8gm finish coating thickness and with good
dispersibility ,Bright appearance .
This finish is grey color with High corrosion resistance , No
hydrogen embrittlement ,Heat resistance ,Easy to plated more
Chrome finish is silver white color and the thickness of film is
0．25～0．5μm normally . chrome finish has many practical Features
like Bright appearance ,Wear resistance ,Corrosion resistance ,Hard
plating film ,Heat resistance .
SEMS Screws Materials
We choose the best material for SEMS screws to ensure the quality .
Stainless steel : SUS 201 , SUS303 , SUS 304 ,SUS 316 , SUS 416
,SUS 430 and SUS 420 .
Carbon steel : 1008 , 1010 , 1018 , 1022 , 1035 , 1045 , SCM 435
Aluminum : 2024 , 6061 and 7075
Brass : CuZn35 , CuZn37 , CuZn40 , CuZn37Pb1 and CuZn39Pb1
SEMS Screws features
1 , Quick and easy operation
2 , Recyclable
3 , Long Service
4 , Environmental protection
5 , Standard Sizes
SEMS Screws is mainly used for electronic products as tony ,printer
, robot and computer etc .
※ Top quality with cheap price
※ Quick deliver
※ All Screws are eco-friendly
※ MOQ is accepted
※ Perfect sales-after service