Hair Dryer

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Phillips Slot Pan Head Stainless Steel SEMS Screws M5 X 15 Assemblied Square Washer?

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SEMS screw is made from stainles steel with high tensile strength , a square washer assembled to machine screws to enlarge touching area and increase friction for more tighten secure .

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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 .

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? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Various washers for SEMS Screws

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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 tightly .

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Specification

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A | 9.5 |
B | 12 |
H | 3.8 |
D | M5 |
D1 | 1.5 |
L | 12 |
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We offer sizes from M2.5 to M10 SEMS screws for wide applications

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Diameter | Length |
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 |
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? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Washers for SEMS screws are different for different sizes .

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Finishing for SEMS screws

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Zinc

The most popular plating for the most products , making parts are bright and smooth and resistant corrosion

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Nickel

The film thickness is 1～3μm , it improves brightness and wear resistance . it is for the most items .

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Polishing

Reduce roughness of parts and improve brightness . is workable for the most metal parts in industry .

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Tin

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 .

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Brass

Usually, 5gm～8gm finish coating thickness and with good dispersibility ,Bright appearance .

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Dacromet

This finish is grey color with High corrosion resistance , No hydrogen embrittlement ,Heat resistance ,Easy to plated more ,eco-friendly etc

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Chrome

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 .

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SEMS Screws Materials

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We choose the best material for SEMS screws to ensure the quality .

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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 and 40CRO

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Aluminum : 2024 , 6061 and 7075

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Brass : CuZn35 , CuZn37 , CuZn40 , CuZn37Pb1 and CuZn39Pb1

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SEMS Screws features

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1 ,?Quick and easy operation

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2 ,?Recyclable

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3 ,?Long Service

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4 ,?Environmental protection

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5 ,?Standard Sizes

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Applications

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SEMS Screws is mainly used for electronic products as tony ,printer , robot and computer etc .

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Our promise

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※ ?Top quality with cheap price

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※ ?Quick deliver

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※ ?All Screws are eco-friendly

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※ ?MOQ is accepted

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※ ?Perfect sales-after service

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